/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 03:52:15,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 03:52:15,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 03:52:15,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 03:52:15,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 03:52:15,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 03:52:15,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 03:52:15,530 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-15 03:52:15,541 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 03:52:15,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 03:52:15,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 03:52:15,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 03:52:15,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 03:52:15,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 03:52:15,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 03:52:15,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 03:52:15,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 03:52:15,543 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 03:52:15,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 03:52:15,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 03:52:15,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 03:52:15,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 03:52:15,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 03:52:15,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:52:15,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 03:52:15,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 03:52:15,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 03:52:15,545 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-15 03:52:15,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 03:52:15,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 03:52:15,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 03:52:15,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 03:52:15,739 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 03:52:15,741 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 03:52:15,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i [2022-02-15 03:52:15,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df579cf8/41d31b103aed43ab94c392f67eae1381/FLAG2ea4da54b [2022-02-15 03:52:16,098 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 03:52:16,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i [2022-02-15 03:52:16,106 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df579cf8/41d31b103aed43ab94c392f67eae1381/FLAG2ea4da54b [2022-02-15 03:52:16,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1df579cf8/41d31b103aed43ab94c392f67eae1381 [2022-02-15 03:52:16,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 03:52:16,528 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 03:52:16,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 03:52:16,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 03:52:16,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 03:52:16,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:52:16" (1/1) ... [2022-02-15 03:52:16,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f378ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:52:16, skipping insertion in model container [2022-02-15 03:52:16,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 03:52:16" (1/1) ... [2022-02-15 03:52:16,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 03:52:16,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 03:52:16,691 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i[919,932] [2022-02-15 03:52:16,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:52:16,711 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 03:52:16,720 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_2.i[919,932] [2022-02-15 03:52:16,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 03:52:16,737 INFO L208 MainTranslator]: Completed translation [2022-02-15 03:52:16,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:52:16 WrapperNode [2022-02-15 03:52:16,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 03:52:16,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 03:52:16,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 03:52:16,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 03:52:16,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:52:16" (1/1) ... [2022-02-15 03:52:16,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:52:16" (1/1) ... [2022-02-15 03:52:16,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:52:16" (1/1) ... [2022-02-15 03:52:16,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:52:16" (1/1) ... [2022-02-15 03:52:16,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:52:16" (1/1) ... [2022-02-15 03:52:16,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:52:16" (1/1) ... [2022-02-15 03:52:16,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:52:16" (1/1) ... [2022-02-15 03:52:16,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 03:52:16,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 03:52:16,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 03:52:16,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 03:52:16,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:52:16" (1/1) ... [2022-02-15 03:52:16,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 03:52:16,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 03:52:16,786 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) [2022-02-15 03:52:16,811 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 [2022-02-15 03:52:16,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 03:52:16,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 03:52:16,822 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 03:52:16,822 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-02-15 03:52:16,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-15 03:52:16,822 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 03:52:16,822 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 03:52:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 03:52:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-02-15 03:52:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-02-15 03:52:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 03:52:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 03:52:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-02-15 03:52:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-15 03:52:16,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-02-15 03:52:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 03:52:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-15 03:52:16,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 03:52:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 03:52:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 03:52:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 03:52:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 03:52:16,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 03:52:16,892 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 03:52:16,893 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 03:52:17,011 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 03:52:17,019 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 03:52:17,019 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-15 03:52:17,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:52:17 BoogieIcfgContainer [2022-02-15 03:52:17,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 03:52:17,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 03:52:17,021 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 03:52:17,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 03:52:17,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 03:52:16" (1/3) ... [2022-02-15 03:52:17,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa50f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:52:17, skipping insertion in model container [2022-02-15 03:52:17,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 03:52:16" (2/3) ... [2022-02-15 03:52:17,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fa50f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 03:52:17, skipping insertion in model container [2022-02-15 03:52:17,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 03:52:17" (3/3) ... [2022-02-15 03:52:17,036 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_2.i [2022-02-15 03:52:17,039 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 03:52:17,039 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 03:52:17,083 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 03:52:17,087 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=QVASR [2022-02-15 03:52:17,087 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 03:52:17,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-15 03:52:17,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-15 03:52:17,101 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:17,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:17,101 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:17,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1210672905, now seen corresponding path program 1 times [2022-02-15 03:52:17,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:17,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945761095] [2022-02-15 03:52:17,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:17,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:17,148 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:17,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:17,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:17,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:52:17,256 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:17,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945761095] [2022-02-15 03:52:17,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1945761095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:17,257 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:17,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 03:52:17,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908603649] [2022-02-15 03:52:17,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:17,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 03:52:17,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:17,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 03:52:17,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 03:52:17,281 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 21 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:52:17,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:17,370 INFO L93 Difference]: Finished difference Result 62 states and 82 transitions. [2022-02-15 03:52:17,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 03:52:17,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-02-15 03:52:17,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:17,383 INFO L225 Difference]: With dead ends: 62 [2022-02-15 03:52:17,383 INFO L226 Difference]: Without dead ends: 33 [2022-02-15 03:52:17,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:52:17,387 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 28 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:17,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 33 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:52:17,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-02-15 03:52:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 26. [2022-02-15 03:52:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:52:17,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2022-02-15 03:52:17,415 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 13 [2022-02-15 03:52:17,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:17,415 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-02-15 03:52:17,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-02-15 03:52:17,415 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2022-02-15 03:52:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-02-15 03:52:17,416 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:17,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:17,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 03:52:17,416 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:17,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:17,417 INFO L85 PathProgramCache]: Analyzing trace with hash 778735204, now seen corresponding path program 1 times [2022-02-15 03:52:17,417 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:17,417 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451904993] [2022-02-15 03:52:17,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:17,426 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:17,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:17,428 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:17,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:17,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:17,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 03:52:17,502 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:17,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451904993] [2022-02-15 03:52:17,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1451904993] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:17,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:17,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-15 03:52:17,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376186073] [2022-02-15 03:52:17,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:17,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-15 03:52:17,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:17,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-15 03:52:17,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-15 03:52:17,504 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-15 03:52:17,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:17,599 INFO L93 Difference]: Finished difference Result 52 states and 58 transitions. [2022-02-15 03:52:17,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 03:52:17,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2022-02-15 03:52:17,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:17,601 INFO L225 Difference]: With dead ends: 52 [2022-02-15 03:52:17,601 INFO L226 Difference]: Without dead ends: 41 [2022-02-15 03:52:17,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-02-15 03:52:17,602 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 33 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:17,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 31 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:52:17,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-02-15 03:52:17,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 30. [2022-02-15 03:52:17,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-15 03:52:17,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-02-15 03:52:17,611 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 21 [2022-02-15 03:52:17,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:17,612 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-02-15 03:52:17,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-15 03:52:17,612 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-02-15 03:52:17,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-02-15 03:52:17,627 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:17,628 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:17,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 03:52:17,628 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:17,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:17,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1692936895, now seen corresponding path program 2 times [2022-02-15 03:52:17,629 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:17,629 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826419756] [2022-02-15 03:52:17,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:17,632 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:17,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:17,634 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:17,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:17,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-15 03:52:17,774 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:17,774 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826419756] [2022-02-15 03:52:17,774 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [826419756] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:17,774 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:17,774 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-15 03:52:17,774 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166723369] [2022-02-15 03:52:17,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:17,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-15 03:52:17,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:17,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-15 03:52:17,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-02-15 03:52:17,776 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:52:17,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:17,931 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2022-02-15 03:52:17,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-15 03:52:17,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 29 [2022-02-15 03:52:17,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:17,935 INFO L225 Difference]: With dead ends: 60 [2022-02-15 03:52:17,935 INFO L226 Difference]: Without dead ends: 49 [2022-02-15 03:52:17,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-02-15 03:52:17,942 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 41 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:17,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 39 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:52:17,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-02-15 03:52:17,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 34. [2022-02-15 03:52:17,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-15 03:52:17,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-02-15 03:52:17,957 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 29 [2022-02-15 03:52:17,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:17,957 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-02-15 03:52:17,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 03:52:17,957 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-02-15 03:52:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-02-15 03:52:17,965 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:17,965 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:17,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 03:52:17,965 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:17,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:17,966 INFO L85 PathProgramCache]: Analyzing trace with hash 912079898, now seen corresponding path program 3 times [2022-02-15 03:52:17,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:17,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324344906] [2022-02-15 03:52:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:17,974 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:17,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:17,975 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,131 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-02-15 03:52:18,131 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:18,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324344906] [2022-02-15 03:52:18,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [324344906] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:18,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:18,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-15 03:52:18,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074362442] [2022-02-15 03:52:18,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:18,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-15 03:52:18,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:18,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-15 03:52:18,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-02-15 03:52:18,133 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-15 03:52:18,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:18,342 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2022-02-15 03:52:18,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-15 03:52:18,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 37 [2022-02-15 03:52:18,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:18,343 INFO L225 Difference]: With dead ends: 68 [2022-02-15 03:52:18,343 INFO L226 Difference]: Without dead ends: 57 [2022-02-15 03:52:18,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-02-15 03:52:18,344 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 53 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:18,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 37 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 03:52:18,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-02-15 03:52:18,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 38. [2022-02-15 03:52:18,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-15 03:52:18,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-02-15 03:52:18,352 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 37 [2022-02-15 03:52:18,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:18,352 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-02-15 03:52:18,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 5 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-02-15 03:52:18,352 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-02-15 03:52:18,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-02-15 03:52:18,353 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:18,353 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:18,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 03:52:18,353 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:18,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:18,354 INFO L85 PathProgramCache]: Analyzing trace with hash 42254965, now seen corresponding path program 4 times [2022-02-15 03:52:18,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:18,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364226824] [2022-02-15 03:52:18,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:18,359 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:18,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:18,361 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:18,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,519 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-15 03:52:18,521 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:18,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [364226824] [2022-02-15 03:52:18,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [364226824] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:18,523 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:18,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 03:52:18,523 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362512318] [2022-02-15 03:52:18,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:18,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 03:52:18,523 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:18,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 03:52:18,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-02-15 03:52:18,524 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-15 03:52:18,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:18,747 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions. [2022-02-15 03:52:18,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-15 03:52:18,747 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 45 [2022-02-15 03:52:18,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:18,748 INFO L225 Difference]: With dead ends: 76 [2022-02-15 03:52:18,748 INFO L226 Difference]: Without dead ends: 65 [2022-02-15 03:52:18,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-02-15 03:52:18,749 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 61 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:18,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 45 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 03:52:18,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-02-15 03:52:18,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 42. [2022-02-15 03:52:18,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.0666666666666667) internal successors, (32), 30 states have internal predecessors, (32), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-15 03:52:18,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2022-02-15 03:52:18,757 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 45 [2022-02-15 03:52:18,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:18,757 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2022-02-15 03:52:18,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 6 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-15 03:52:18,758 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2022-02-15 03:52:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-02-15 03:52:18,759 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:18,759 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:18,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 03:52:18,759 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:18,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:18,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1041874384, now seen corresponding path program 5 times [2022-02-15 03:52:18,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:18,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052516540] [2022-02-15 03:52:18,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:18,762 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:18,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:18,763 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:18,880 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-02-15 03:52:18,880 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:18,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052516540] [2022-02-15 03:52:18,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1052516540] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:18,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:18,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 03:52:18,881 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477629205] [2022-02-15 03:52:18,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:18,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 03:52:18,881 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:18,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 03:52:18,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-02-15 03:52:18,882 INFO L87 Difference]: Start difference. First operand 42 states and 47 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-15 03:52:19,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:19,126 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2022-02-15 03:52:19,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 03:52:19,127 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 53 [2022-02-15 03:52:19,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:19,128 INFO L225 Difference]: With dead ends: 84 [2022-02-15 03:52:19,128 INFO L226 Difference]: Without dead ends: 73 [2022-02-15 03:52:19,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2022-02-15 03:52:19,129 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 67 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:19,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 58 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 03:52:19,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-02-15 03:52:19,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 46. [2022-02-15 03:52:19,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.0606060606060606) internal successors, (35), 33 states have internal predecessors, (35), 9 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-15 03:52:19,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-02-15 03:52:19,137 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 53 [2022-02-15 03:52:19,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:19,138 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-02-15 03:52:19,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 8 states have internal predecessors, (27), 7 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-02-15 03:52:19,138 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-02-15 03:52:19,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-02-15 03:52:19,138 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:19,139 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:19,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-15 03:52:19,139 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:19,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:19,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1926704683, now seen corresponding path program 6 times [2022-02-15 03:52:19,139 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:19,139 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383663493] [2022-02-15 03:52:19,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:19,141 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:19,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:19,142 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:19,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:19,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,294 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-02-15 03:52:19,295 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:19,295 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383663493] [2022-02-15 03:52:19,295 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1383663493] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:19,295 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:19,295 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-02-15 03:52:19,295 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804752515] [2022-02-15 03:52:19,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:19,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-15 03:52:19,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:19,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-15 03:52:19,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 03:52:19,300 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-15 03:52:19,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:19,588 INFO L93 Difference]: Finished difference Result 92 states and 108 transitions. [2022-02-15 03:52:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-15 03:52:19,588 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 61 [2022-02-15 03:52:19,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:19,589 INFO L225 Difference]: With dead ends: 92 [2022-02-15 03:52:19,589 INFO L226 Difference]: Without dead ends: 81 [2022-02-15 03:52:19,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2022-02-15 03:52:19,590 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 77 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:19,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 61 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-15 03:52:19,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-02-15 03:52:19,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 50. [2022-02-15 03:52:19,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 10 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-15 03:52:19,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2022-02-15 03:52:19,601 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 61 [2022-02-15 03:52:19,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:19,601 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2022-02-15 03:52:19,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 8 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-02-15 03:52:19,601 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2022-02-15 03:52:19,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-02-15 03:52:19,602 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:19,602 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:19,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-15 03:52:19,602 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:19,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:19,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1064833926, now seen corresponding path program 7 times [2022-02-15 03:52:19,603 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:19,603 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501484408] [2022-02-15 03:52:19,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:19,605 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:19,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:19,606 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:19,743 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-02-15 03:52:19,743 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:19,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501484408] [2022-02-15 03:52:19,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [501484408] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:19,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:19,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-02-15 03:52:19,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799588990] [2022-02-15 03:52:19,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:19,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-15 03:52:19,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:19,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-15 03:52:19,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-02-15 03:52:19,745 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-15 03:52:20,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:20,090 INFO L93 Difference]: Finished difference Result 100 states and 118 transitions. [2022-02-15 03:52:20,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-15 03:52:20,090 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 69 [2022-02-15 03:52:20,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:20,091 INFO L225 Difference]: With dead ends: 100 [2022-02-15 03:52:20,091 INFO L226 Difference]: Without dead ends: 89 [2022-02-15 03:52:20,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2022-02-15 03:52:20,092 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 87 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:20,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 64 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 03:52:20,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-02-15 03:52:20,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 54. [2022-02-15 03:52:20,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 39 states have internal predecessors, (41), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-15 03:52:20,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2022-02-15 03:52:20,101 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 69 [2022-02-15 03:52:20,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:20,102 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2022-02-15 03:52:20,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 9 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-02-15 03:52:20,102 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2022-02-15 03:52:20,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-02-15 03:52:20,102 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:20,103 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:20,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-15 03:52:20,103 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:20,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:20,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1471639009, now seen corresponding path program 8 times [2022-02-15 03:52:20,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:20,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510105926] [2022-02-15 03:52:20,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:20,105 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:20,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:20,106 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:20,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:20,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-02-15 03:52:20,263 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:20,263 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510105926] [2022-02-15 03:52:20,263 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [510105926] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:20,263 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:20,263 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-02-15 03:52:20,263 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492934750] [2022-02-15 03:52:20,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:20,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-15 03:52:20,264 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:20,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-15 03:52:20,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-02-15 03:52:20,265 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-15 03:52:20,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:20,661 INFO L93 Difference]: Finished difference Result 108 states and 128 transitions. [2022-02-15 03:52:20,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-15 03:52:20,662 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 77 [2022-02-15 03:52:20,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:20,663 INFO L225 Difference]: With dead ends: 108 [2022-02-15 03:52:20,663 INFO L226 Difference]: Without dead ends: 97 [2022-02-15 03:52:20,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=339, Unknown=0, NotChecked=0, Total=420 [2022-02-15 03:52:20,664 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 103 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:20,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 52 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-02-15 03:52:20,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-02-15 03:52:20,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 58. [2022-02-15 03:52:20,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.0476190476190477) internal successors, (44), 42 states have internal predecessors, (44), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-15 03:52:20,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 67 transitions. [2022-02-15 03:52:20,674 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 67 transitions. Word has length 77 [2022-02-15 03:52:20,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:20,674 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 67 transitions. [2022-02-15 03:52:20,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 11 states have internal predecessors, (36), 10 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-02-15 03:52:20,674 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 67 transitions. [2022-02-15 03:52:20,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-02-15 03:52:20,675 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:20,675 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:20,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-15 03:52:20,675 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:20,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:20,676 INFO L85 PathProgramCache]: Analyzing trace with hash -2075116228, now seen corresponding path program 9 times [2022-02-15 03:52:20,676 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:20,676 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1041454303] [2022-02-15 03:52:20,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:20,678 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:20,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:20,679 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:20,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-02-15 03:52:20,823 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:20,823 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1041454303] [2022-02-15 03:52:20,823 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1041454303] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:20,823 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:20,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-02-15 03:52:20,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842667161] [2022-02-15 03:52:20,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:20,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-02-15 03:52:20,824 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:20,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-02-15 03:52:20,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-02-15 03:52:20,825 INFO L87 Difference]: Start difference. First operand 58 states and 67 transitions. Second operand has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-15 03:52:21,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:21,328 INFO L93 Difference]: Finished difference Result 116 states and 138 transitions. [2022-02-15 03:52:21,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 03:52:21,330 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 85 [2022-02-15 03:52:21,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:21,331 INFO L225 Difference]: With dead ends: 116 [2022-02-15 03:52:21,331 INFO L226 Difference]: Without dead ends: 105 [2022-02-15 03:52:21,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=416, Unknown=0, NotChecked=0, Total=506 [2022-02-15 03:52:21,332 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 103 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:21,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [105 Valid, 80 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 03:52:21,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-02-15 03:52:21,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 62. [2022-02-15 03:52:21,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 45 states have internal predecessors, (47), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-15 03:52:21,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2022-02-15 03:52:21,342 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 85 [2022-02-15 03:52:21,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:21,343 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2022-02-15 03:52:21,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.0) internal successors, (39), 12 states have internal predecessors, (39), 11 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-02-15 03:52:21,343 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2022-02-15 03:52:21,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-02-15 03:52:21,343 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:21,344 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:21,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-15 03:52:21,344 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:21,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:21,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1560444521, now seen corresponding path program 10 times [2022-02-15 03:52:21,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:21,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [429752836] [2022-02-15 03:52:21,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:21,346 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:21,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:21,347 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:21,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:21,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:21,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-02-15 03:52:21,509 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:21,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [429752836] [2022-02-15 03:52:21,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [429752836] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:21,509 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:21,509 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-02-15 03:52:21,509 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075058366] [2022-02-15 03:52:21,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:21,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-15 03:52:21,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:21,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-15 03:52:21,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-02-15 03:52:21,510 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-15 03:52:22,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:22,084 INFO L93 Difference]: Finished difference Result 124 states and 148 transitions. [2022-02-15 03:52:22,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 03:52:22,085 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 93 [2022-02-15 03:52:22,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:22,085 INFO L225 Difference]: With dead ends: 124 [2022-02-15 03:52:22,085 INFO L226 Difference]: Without dead ends: 113 [2022-02-15 03:52:22,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=501, Unknown=0, NotChecked=0, Total=600 [2022-02-15 03:52:22,086 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 1091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:22,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 68 Invalid, 1091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 03:52:22,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-02-15 03:52:22,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 66. [2022-02-15 03:52:22,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 48 states have internal predecessors, (50), 14 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-15 03:52:22,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 77 transitions. [2022-02-15 03:52:22,100 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 77 transitions. Word has length 93 [2022-02-15 03:52:22,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:22,100 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 77 transitions. [2022-02-15 03:52:22,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 12 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-02-15 03:52:22,101 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 77 transitions. [2022-02-15 03:52:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-15 03:52:22,101 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:22,101 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:22,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-15 03:52:22,101 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:22,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:22,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1501938958, now seen corresponding path program 11 times [2022-02-15 03:52:22,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:22,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [862210958] [2022-02-15 03:52:22,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:22,104 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:22,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:22,105 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:22,296 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-02-15 03:52:22,296 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:22,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [862210958] [2022-02-15 03:52:22,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [862210958] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:22,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:22,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-02-15 03:52:22,296 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135890612] [2022-02-15 03:52:22,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:22,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-15 03:52:22,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:22,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-15 03:52:22,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-02-15 03:52:22,297 INFO L87 Difference]: Start difference. First operand 66 states and 77 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-15 03:52:22,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:22,886 INFO L93 Difference]: Finished difference Result 132 states and 158 transitions. [2022-02-15 03:52:22,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-15 03:52:22,886 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 101 [2022-02-15 03:52:22,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:22,888 INFO L225 Difference]: With dead ends: 132 [2022-02-15 03:52:22,888 INFO L226 Difference]: Without dead ends: 121 [2022-02-15 03:52:22,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2022-02-15 03:52:22,889 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 135 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:22,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 56 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-15 03:52:22,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-02-15 03:52:22,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 70. [2022-02-15 03:52:22,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.0392156862745099) internal successors, (53), 51 states have internal predecessors, (53), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-15 03:52:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2022-02-15 03:52:22,900 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 101 [2022-02-15 03:52:22,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:22,900 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2022-02-15 03:52:22,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 13 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-02-15 03:52:22,900 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2022-02-15 03:52:22,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-02-15 03:52:22,901 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:22,901 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:22,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-15 03:52:22,901 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:22,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:22,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1769903795, now seen corresponding path program 12 times [2022-02-15 03:52:22,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:22,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780715238] [2022-02-15 03:52:22,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:22,903 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:22,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:22,904 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:23,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:23,092 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-02-15 03:52:23,093 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:23,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780715238] [2022-02-15 03:52:23,093 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1780715238] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:23,093 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:23,093 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-02-15 03:52:23,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677937776] [2022-02-15 03:52:23,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:23,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-15 03:52:23,093 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:23,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-15 03:52:23,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2022-02-15 03:52:23,094 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-15 03:52:23,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:23,789 INFO L93 Difference]: Finished difference Result 140 states and 168 transitions. [2022-02-15 03:52:23,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-15 03:52:23,789 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Word has length 109 [2022-02-15 03:52:23,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:23,790 INFO L225 Difference]: With dead ends: 140 [2022-02-15 03:52:23,790 INFO L226 Difference]: Without dead ends: 129 [2022-02-15 03:52:23,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2022-02-15 03:52:23,791 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 139 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:23,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 74 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-15 03:52:23,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-02-15 03:52:23,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 74. [2022-02-15 03:52:23,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 54 states have (on average 1.037037037037037) internal successors, (56), 54 states have internal predecessors, (56), 16 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-15 03:52:23,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 87 transitions. [2022-02-15 03:52:23,802 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 87 transitions. Word has length 109 [2022-02-15 03:52:23,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:23,802 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 87 transitions. [2022-02-15 03:52:23,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 15 states have internal predecessors, (48), 14 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-02-15 03:52:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 87 transitions. [2022-02-15 03:52:23,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-02-15 03:52:23,809 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:23,809 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:23,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-15 03:52:23,809 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:23,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:23,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1882321752, now seen corresponding path program 13 times [2022-02-15 03:52:23,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:23,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355327021] [2022-02-15 03:52:23,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:23,811 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:23,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:23,813 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:24,045 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-02-15 03:52:24,046 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:24,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355327021] [2022-02-15 03:52:24,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [355327021] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:24,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:24,046 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-02-15 03:52:24,046 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418152294] [2022-02-15 03:52:24,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:24,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-02-15 03:52:24,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:24,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-02-15 03:52:24,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-02-15 03:52:24,047 INFO L87 Difference]: Start difference. First operand 74 states and 87 transitions. Second operand has 17 states, 17 states have (on average 3.0) internal successors, (51), 16 states have internal predecessors, (51), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-15 03:52:24,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:24,962 INFO L93 Difference]: Finished difference Result 148 states and 178 transitions. [2022-02-15 03:52:24,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-15 03:52:24,962 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 16 states have internal predecessors, (51), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Word has length 117 [2022-02-15 03:52:24,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:24,963 INFO L225 Difference]: With dead ends: 148 [2022-02-15 03:52:24,963 INFO L226 Difference]: Without dead ends: 137 [2022-02-15 03:52:24,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=804, Unknown=0, NotChecked=0, Total=930 [2022-02-15 03:52:24,964 INFO L933 BasicCegarLoop]: 55 mSDtfsCounter, 129 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:24,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 127 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 03:52:24,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-02-15 03:52:24,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 78. [2022-02-15 03:52:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 57 states have (on average 1.0350877192982457) internal successors, (59), 57 states have internal predecessors, (59), 17 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-15 03:52:24,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 92 transitions. [2022-02-15 03:52:24,994 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 92 transitions. Word has length 117 [2022-02-15 03:52:24,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:24,994 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 92 transitions. [2022-02-15 03:52:24,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 16 states have internal predecessors, (51), 15 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-02-15 03:52:24,995 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 92 transitions. [2022-02-15 03:52:24,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-02-15 03:52:24,996 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:24,996 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:24,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-15 03:52:24,996 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:24,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:24,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1004854013, now seen corresponding path program 14 times [2022-02-15 03:52:24,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:24,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972279831] [2022-02-15 03:52:24,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:24,999 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:24,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:25,000 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:25,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:25,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:25,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-02-15 03:52:25,226 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:25,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972279831] [2022-02-15 03:52:25,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1972279831] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:25,226 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:25,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-02-15 03:52:25,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103832207] [2022-02-15 03:52:25,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:25,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-15 03:52:25,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:25,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-15 03:52:25,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-02-15 03:52:25,227 INFO L87 Difference]: Start difference. First operand 78 states and 92 transitions. Second operand has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-15 03:52:26,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:26,157 INFO L93 Difference]: Finished difference Result 156 states and 188 transitions. [2022-02-15 03:52:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-15 03:52:26,158 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Word has length 125 [2022-02-15 03:52:26,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:26,159 INFO L225 Difference]: With dead ends: 156 [2022-02-15 03:52:26,159 INFO L226 Difference]: Without dead ends: 145 [2022-02-15 03:52:26,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=921, Unknown=0, NotChecked=0, Total=1056 [2022-02-15 03:52:26,160 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 153 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:26,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 95 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-02-15 03:52:26,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-02-15 03:52:26,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 82. [2022-02-15 03:52:26,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 60 states have internal predecessors, (62), 18 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-15 03:52:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 97 transitions. [2022-02-15 03:52:26,175 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 97 transitions. Word has length 125 [2022-02-15 03:52:26,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:26,176 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 97 transitions. [2022-02-15 03:52:26,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 16 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-02-15 03:52:26,176 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 97 transitions. [2022-02-15 03:52:26,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-02-15 03:52:26,176 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:26,176 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:26,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-15 03:52:26,177 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:26,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:26,177 INFO L85 PathProgramCache]: Analyzing trace with hash 2049159774, now seen corresponding path program 15 times [2022-02-15 03:52:26,177 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:26,177 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1326869768] [2022-02-15 03:52:26,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:26,179 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:26,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:26,180 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:26,420 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-02-15 03:52:26,420 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:26,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1326869768] [2022-02-15 03:52:26,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1326869768] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:26,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:26,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-15 03:52:26,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140975846] [2022-02-15 03:52:26,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:26,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-15 03:52:26,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:26,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-15 03:52:26,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-02-15 03:52:26,421 INFO L87 Difference]: Start difference. First operand 82 states and 97 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-15 03:52:27,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:27,403 INFO L93 Difference]: Finished difference Result 164 states and 198 transitions. [2022-02-15 03:52:27,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-15 03:52:27,404 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 133 [2022-02-15 03:52:27,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:27,405 INFO L225 Difference]: With dead ends: 164 [2022-02-15 03:52:27,405 INFO L226 Difference]: Without dead ends: 153 [2022-02-15 03:52:27,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=144, Invalid=1046, Unknown=0, NotChecked=0, Total=1190 [2022-02-15 03:52:27,406 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 159 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 2225 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 2401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:27,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 108 Invalid, 2401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2225 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-02-15 03:52:27,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-02-15 03:52:27,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 86. [2022-02-15 03:52:27,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 63 states have (on average 1.0317460317460319) internal successors, (65), 63 states have internal predecessors, (65), 19 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-15 03:52:27,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 102 transitions. [2022-02-15 03:52:27,421 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 102 transitions. Word has length 133 [2022-02-15 03:52:27,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:27,421 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 102 transitions. [2022-02-15 03:52:27,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 18 states have internal predecessors, (57), 17 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2022-02-15 03:52:27,421 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 102 transitions. [2022-02-15 03:52:27,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-02-15 03:52:27,422 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:27,423 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:27,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-15 03:52:27,423 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:27,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:27,423 INFO L85 PathProgramCache]: Analyzing trace with hash 228766905, now seen corresponding path program 16 times [2022-02-15 03:52:27,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:27,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879495022] [2022-02-15 03:52:27,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:27,425 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:27,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:27,427 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:27,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:27,684 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2022-02-15 03:52:27,684 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:27,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879495022] [2022-02-15 03:52:27,685 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [879495022] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:27,685 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:27,685 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-02-15 03:52:27,685 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471936132] [2022-02-15 03:52:27,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:27,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-15 03:52:27,685 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:27,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-15 03:52:27,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2022-02-15 03:52:27,686 INFO L87 Difference]: Start difference. First operand 86 states and 102 transitions. Second operand has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-15 03:52:28,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:28,909 INFO L93 Difference]: Finished difference Result 172 states and 208 transitions. [2022-02-15 03:52:28,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-02-15 03:52:28,923 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Word has length 141 [2022-02-15 03:52:28,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:28,924 INFO L225 Difference]: With dead ends: 172 [2022-02-15 03:52:28,924 INFO L226 Difference]: Without dead ends: 161 [2022-02-15 03:52:28,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=153, Invalid=1179, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 03:52:28,925 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 155 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2795 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 2969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 2795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:28,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 146 Invalid, 2969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 2795 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 03:52:28,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-02-15 03:52:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 90. [2022-02-15 03:52:28,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 66 states have (on average 1.0303030303030303) internal successors, (68), 66 states have internal predecessors, (68), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-15 03:52:28,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 107 transitions. [2022-02-15 03:52:28,955 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 107 transitions. Word has length 141 [2022-02-15 03:52:28,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:28,957 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 107 transitions. [2022-02-15 03:52:28,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 18 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-02-15 03:52:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 107 transitions. [2022-02-15 03:52:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-02-15 03:52:28,958 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:28,958 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:28,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-15 03:52:28,958 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:28,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:28,958 INFO L85 PathProgramCache]: Analyzing trace with hash -279761900, now seen corresponding path program 17 times [2022-02-15 03:52:28,959 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:28,959 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138870175] [2022-02-15 03:52:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:28,961 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:28,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:28,964 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:29,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2022-02-15 03:52:29,256 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:29,256 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138870175] [2022-02-15 03:52:29,256 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2138870175] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:29,256 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:29,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-02-15 03:52:29,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33845643] [2022-02-15 03:52:29,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:29,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-02-15 03:52:29,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:29,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-02-15 03:52:29,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2022-02-15 03:52:29,257 INFO L87 Difference]: Start difference. First operand 90 states and 107 transitions. Second operand has 21 states, 21 states have (on average 3.0) internal successors, (63), 20 states have internal predecessors, (63), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-15 03:52:30,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:30,522 INFO L93 Difference]: Finished difference Result 180 states and 218 transitions. [2022-02-15 03:52:30,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-15 03:52:30,523 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.0) internal successors, (63), 20 states have internal predecessors, (63), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Word has length 149 [2022-02-15 03:52:30,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:30,524 INFO L225 Difference]: With dead ends: 180 [2022-02-15 03:52:30,524 INFO L226 Difference]: Without dead ends: 169 [2022-02-15 03:52:30,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=1320, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 03:52:30,525 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 183 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:30,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 104 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [204 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 03:52:30,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-02-15 03:52:30,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 94. [2022-02-15 03:52:30,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 69 states have internal predecessors, (71), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-15 03:52:30,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2022-02-15 03:52:30,540 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 149 [2022-02-15 03:52:30,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:30,540 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2022-02-15 03:52:30,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.0) internal successors, (63), 20 states have internal predecessors, (63), 19 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2022-02-15 03:52:30,541 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2022-02-15 03:52:30,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-02-15 03:52:30,541 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:30,541 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:30,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-15 03:52:30,542 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:30,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:30,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1527768977, now seen corresponding path program 18 times [2022-02-15 03:52:30,542 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:30,542 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312394061] [2022-02-15 03:52:30,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:30,544 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:30,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:30,545 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:30,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:52:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:30,839 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2022-02-15 03:52:30,839 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:30,839 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312394061] [2022-02-15 03:52:30,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [312394061] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:30,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:30,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-02-15 03:52:30,839 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147815007] [2022-02-15 03:52:30,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:30,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-15 03:52:30,840 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:30,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-15 03:52:30,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2022-02-15 03:52:30,841 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand has 22 states, 22 states have (on average 3.0) internal successors, (66), 21 states have internal predecessors, (66), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-15 03:52:32,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:32,088 INFO L93 Difference]: Finished difference Result 188 states and 228 transitions. [2022-02-15 03:52:32,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-15 03:52:32,088 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.0) internal successors, (66), 21 states have internal predecessors, (66), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Word has length 157 [2022-02-15 03:52:32,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:32,089 INFO L225 Difference]: With dead ends: 188 [2022-02-15 03:52:32,089 INFO L226 Difference]: Without dead ends: 177 [2022-02-15 03:52:32,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=171, Invalid=1469, Unknown=0, NotChecked=0, Total=1640 [2022-02-15 03:52:32,090 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 205 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:32,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 77 Invalid, 2932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 2704 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-02-15 03:52:32,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-02-15 03:52:32,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 98. [2022-02-15 03:52:32,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 72 states have internal predecessors, (74), 22 states have call successors, (22), 4 states have call predecessors, (22), 3 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-15 03:52:32,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 117 transitions. [2022-02-15 03:52:32,107 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 117 transitions. Word has length 157 [2022-02-15 03:52:32,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:32,107 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 117 transitions. [2022-02-15 03:52:32,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.0) internal successors, (66), 21 states have internal predecessors, (66), 20 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-02-15 03:52:32,108 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2022-02-15 03:52:32,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-02-15 03:52:32,108 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:32,109 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:32,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-15 03:52:32,109 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:32,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:32,109 INFO L85 PathProgramCache]: Analyzing trace with hash -919307830, now seen corresponding path program 19 times [2022-02-15 03:52:32,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:32,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214424928] [2022-02-15 03:52:32,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:32,111 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:32,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:32,112 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:32,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:32,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:32,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:52:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:52:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2022-02-15 03:52:32,427 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:32,427 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214424928] [2022-02-15 03:52:32,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [214424928] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:32,427 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:32,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-02-15 03:52:32,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754826119] [2022-02-15 03:52:32,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:32,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-15 03:52:32,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:32,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-15 03:52:32,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2022-02-15 03:52:32,429 INFO L87 Difference]: Start difference. First operand 98 states and 117 transitions. Second operand has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-15 03:52:33,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:33,968 INFO L93 Difference]: Finished difference Result 196 states and 238 transitions. [2022-02-15 03:52:33,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-02-15 03:52:33,969 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 165 [2022-02-15 03:52:33,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:33,971 INFO L225 Difference]: With dead ends: 196 [2022-02-15 03:52:33,971 INFO L226 Difference]: Without dead ends: 185 [2022-02-15 03:52:33,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=180, Invalid=1626, Unknown=0, NotChecked=0, Total=1806 [2022-02-15 03:52:33,972 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 201 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 3348 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 3574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 3348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:33,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 115 Invalid, 3574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 3348 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-15 03:52:33,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-02-15 03:52:33,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 102. [2022-02-15 03:52:33,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 75 states have (on average 1.0266666666666666) internal successors, (77), 75 states have internal predecessors, (77), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-15 03:52:33,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2022-02-15 03:52:33,991 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 165 [2022-02-15 03:52:33,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:33,991 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2022-02-15 03:52:33,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0) internal successors, (69), 22 states have internal predecessors, (69), 21 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-02-15 03:52:33,991 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2022-02-15 03:52:33,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-02-15 03:52:33,992 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:33,992 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:33,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-02-15 03:52:33,992 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:33,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:33,993 INFO L85 PathProgramCache]: Analyzing trace with hash 198922277, now seen corresponding path program 20 times [2022-02-15 03:52:33,993 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:33,993 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591954738] [2022-02-15 03:52:33,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:33,994 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:33,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:33,995 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:34,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:34,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:34,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:52:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:52:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:52:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:34,336 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-02-15 03:52:34,336 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:34,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591954738] [2022-02-15 03:52:34,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [591954738] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:34,337 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:34,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-02-15 03:52:34,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411005397] [2022-02-15 03:52:34,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:34,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-15 03:52:34,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:34,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-15 03:52:34,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-02-15 03:52:34,338 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand has 24 states, 24 states have (on average 3.0) internal successors, (72), 23 states have internal predecessors, (72), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-15 03:52:35,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:35,895 INFO L93 Difference]: Finished difference Result 204 states and 248 transitions. [2022-02-15 03:52:35,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-15 03:52:35,896 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.0) internal successors, (72), 23 states have internal predecessors, (72), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Word has length 173 [2022-02-15 03:52:35,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:35,897 INFO L225 Difference]: With dead ends: 204 [2022-02-15 03:52:35,897 INFO L226 Difference]: Without dead ends: 193 [2022-02-15 03:52:35,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=189, Invalid=1791, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 03:52:35,898 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 221 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3424 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 3672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 3424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:35,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 93 Invalid, 3672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 3424 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-02-15 03:52:35,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-02-15 03:52:35,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 106. [2022-02-15 03:52:35,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 78 states have (on average 1.0256410256410255) internal successors, (80), 78 states have internal predecessors, (80), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-15 03:52:35,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2022-02-15 03:52:35,922 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 173 [2022-02-15 03:52:35,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:35,922 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2022-02-15 03:52:35,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.0) internal successors, (72), 23 states have internal predecessors, (72), 22 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-02-15 03:52:35,922 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2022-02-15 03:52:35,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-02-15 03:52:35,927 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:35,927 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:35,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-15 03:52:35,928 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:35,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:35,928 INFO L85 PathProgramCache]: Analyzing trace with hash 832543616, now seen corresponding path program 21 times [2022-02-15 03:52:35,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:35,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561898331] [2022-02-15 03:52:35,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:35,930 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:35,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:35,932 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:52:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:52:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:52:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:52:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2022-02-15 03:52:36,296 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:36,296 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561898331] [2022-02-15 03:52:36,296 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [561898331] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:36,296 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:36,296 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-02-15 03:52:36,297 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232230390] [2022-02-15 03:52:36,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:36,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-15 03:52:36,297 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:36,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-15 03:52:36,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-02-15 03:52:36,298 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-15 03:52:38,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:38,249 INFO L93 Difference]: Finished difference Result 212 states and 258 transitions. [2022-02-15 03:52:38,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-15 03:52:38,250 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 181 [2022-02-15 03:52:38,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:38,251 INFO L225 Difference]: With dead ends: 212 [2022-02-15 03:52:38,251 INFO L226 Difference]: Without dead ends: 201 [2022-02-15 03:52:38,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=198, Invalid=1964, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 03:52:38,252 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 193 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 4768 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 4990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 4768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:38,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 191 Invalid, 4990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 4768 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-02-15 03:52:38,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-02-15 03:52:38,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 110. [2022-02-15 03:52:38,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 81 states have (on average 1.0246913580246915) internal successors, (83), 81 states have internal predecessors, (83), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-15 03:52:38,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 132 transitions. [2022-02-15 03:52:38,273 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 132 transitions. Word has length 181 [2022-02-15 03:52:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:38,273 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 132 transitions. [2022-02-15 03:52:38,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 24 states have internal predecessors, (75), 23 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-02-15 03:52:38,273 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 132 transitions. [2022-02-15 03:52:38,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-02-15 03:52:38,274 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:38,274 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:38,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-02-15 03:52:38,274 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:38,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:38,274 INFO L85 PathProgramCache]: Analyzing trace with hash 339499995, now seen corresponding path program 22 times [2022-02-15 03:52:38,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:38,275 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428055645] [2022-02-15 03:52:38,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:38,276 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:38,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:38,277 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:38,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:52:38,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:52:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:52:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:52:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:52:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:38,665 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-02-15 03:52:38,665 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:38,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428055645] [2022-02-15 03:52:38,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [428055645] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:38,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:38,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-02-15 03:52:38,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898482325] [2022-02-15 03:52:38,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:38,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-15 03:52:38,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:38,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-15 03:52:38,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2022-02-15 03:52:38,667 INFO L87 Difference]: Start difference. First operand 110 states and 132 transitions. Second operand has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-15 03:52:40,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:40,416 INFO L93 Difference]: Finished difference Result 220 states and 268 transitions. [2022-02-15 03:52:40,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-02-15 03:52:40,424 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Word has length 189 [2022-02-15 03:52:40,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:40,425 INFO L225 Difference]: With dead ends: 220 [2022-02-15 03:52:40,425 INFO L226 Difference]: Without dead ends: 209 [2022-02-15 03:52:40,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=207, Invalid=2145, Unknown=0, NotChecked=0, Total=2352 [2022-02-15 03:52:40,426 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 245 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 4004 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 4280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 4004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:40,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 89 Invalid, 4280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 4004 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-02-15 03:52:40,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-02-15 03:52:40,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 114. [2022-02-15 03:52:40,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 84 states have (on average 1.0238095238095237) internal successors, (86), 84 states have internal predecessors, (86), 26 states have call successors, (26), 4 states have call predecessors, (26), 3 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-15 03:52:40,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2022-02-15 03:52:40,459 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 189 [2022-02-15 03:52:40,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:40,459 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2022-02-15 03:52:40,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.0) internal successors, (78), 25 states have internal predecessors, (78), 24 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2022-02-15 03:52:40,459 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2022-02-15 03:52:40,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-02-15 03:52:40,460 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:40,460 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:40,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-15 03:52:40,460 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:40,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:40,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1569943242, now seen corresponding path program 23 times [2022-02-15 03:52:40,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:40,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631709603] [2022-02-15 03:52:40,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:40,463 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:40,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:40,464 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:52:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:52:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:52:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:52:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:52:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:52:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2022-02-15 03:52:40,856 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:40,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631709603] [2022-02-15 03:52:40,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [631709603] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:40,856 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:40,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-02-15 03:52:40,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827638048] [2022-02-15 03:52:40,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:40,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-15 03:52:40,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:40,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-15 03:52:40,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=628, Unknown=0, NotChecked=0, Total=702 [2022-02-15 03:52:40,858 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-15 03:52:43,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:43,060 INFO L93 Difference]: Finished difference Result 228 states and 278 transitions. [2022-02-15 03:52:43,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-02-15 03:52:43,060 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Word has length 197 [2022-02-15 03:52:43,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:43,061 INFO L225 Difference]: With dead ends: 228 [2022-02-15 03:52:43,061 INFO L226 Difference]: Without dead ends: 217 [2022-02-15 03:52:43,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=216, Invalid=2334, Unknown=0, NotChecked=0, Total=2550 [2022-02-15 03:52:43,062 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 227 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 5167 mSolverCounterSat, 260 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 5427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 260 IncrementalHoareTripleChecker+Valid, 5167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:43,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [229 Valid, 162 Invalid, 5427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [260 Valid, 5167 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-02-15 03:52:43,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-02-15 03:52:43,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 118. [2022-02-15 03:52:43,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 87 states have (on average 1.0229885057471264) internal successors, (89), 87 states have internal predecessors, (89), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-15 03:52:43,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 142 transitions. [2022-02-15 03:52:43,087 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 142 transitions. Word has length 197 [2022-02-15 03:52:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:43,087 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 142 transitions. [2022-02-15 03:52:43,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 25 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-02-15 03:52:43,087 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 142 transitions. [2022-02-15 03:52:43,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-02-15 03:52:43,088 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:43,088 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:43,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-15 03:52:43,088 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:43,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:43,089 INFO L85 PathProgramCache]: Analyzing trace with hash -538231919, now seen corresponding path program 24 times [2022-02-15 03:52:43,089 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:43,089 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [606347466] [2022-02-15 03:52:43,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:43,091 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:43,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:43,092 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:43,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:43,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:43,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:43,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:43,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:52:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:52:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:52:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:52:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:52:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:52:43,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:52:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:43,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2022-02-15 03:52:43,509 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:43,509 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [606347466] [2022-02-15 03:52:43,509 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [606347466] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:43,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:43,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-02-15 03:52:43,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838564307] [2022-02-15 03:52:43,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:43,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-15 03:52:43,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:43,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-15 03:52:43,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2022-02-15 03:52:43,511 INFO L87 Difference]: Start difference. First operand 118 states and 142 transitions. Second operand has 28 states, 28 states have (on average 3.0) internal successors, (84), 27 states have internal predecessors, (84), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-15 03:52:46,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:46,051 INFO L93 Difference]: Finished difference Result 236 states and 288 transitions. [2022-02-15 03:52:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-15 03:52:46,051 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 27 states have internal predecessors, (84), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Word has length 205 [2022-02-15 03:52:46,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:46,052 INFO L225 Difference]: With dead ends: 236 [2022-02-15 03:52:46,052 INFO L226 Difference]: Without dead ends: 225 [2022-02-15 03:52:46,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=225, Invalid=2531, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 03:52:46,053 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 217 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 6166 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 6418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 6166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:46,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [219 Valid, 215 Invalid, 6418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 6166 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-15 03:52:46,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-02-15 03:52:46,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 122. [2022-02-15 03:52:46,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 1.0222222222222221) internal successors, (92), 90 states have internal predecessors, (92), 28 states have call successors, (28), 4 states have call predecessors, (28), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-15 03:52:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 147 transitions. [2022-02-15 03:52:46,083 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 147 transitions. Word has length 205 [2022-02-15 03:52:46,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:46,083 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 147 transitions. [2022-02-15 03:52:46,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 27 states have internal predecessors, (84), 26 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2022-02-15 03:52:46,083 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 147 transitions. [2022-02-15 03:52:46,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-02-15 03:52:46,084 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:46,084 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:46,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-02-15 03:52:46,084 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:46,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:46,085 INFO L85 PathProgramCache]: Analyzing trace with hash -445424916, now seen corresponding path program 25 times [2022-02-15 03:52:46,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:46,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080317572] [2022-02-15 03:52:46,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:46,086 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:46,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:46,088 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:46,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:52:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:52:46,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:52:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:52:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:52:46,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:52:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:52:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:52:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:46,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2022-02-15 03:52:46,560 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:46,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080317572] [2022-02-15 03:52:46,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1080317572] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:46,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:46,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-02-15 03:52:46,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404754121] [2022-02-15 03:52:46,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:46,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-15 03:52:46,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:46,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-15 03:52:46,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2022-02-15 03:52:46,562 INFO L87 Difference]: Start difference. First operand 122 states and 147 transitions. Second operand has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-15 03:52:49,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:49,106 INFO L93 Difference]: Finished difference Result 244 states and 298 transitions. [2022-02-15 03:52:49,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-15 03:52:49,106 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Word has length 213 [2022-02-15 03:52:49,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:49,107 INFO L225 Difference]: With dead ends: 244 [2022-02-15 03:52:49,107 INFO L226 Difference]: Without dead ends: 233 [2022-02-15 03:52:49,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=234, Invalid=2736, Unknown=0, NotChecked=0, Total=2970 [2022-02-15 03:52:49,108 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 247 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 6001 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 6285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 6001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:49,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 168 Invalid, 6285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 6001 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-02-15 03:52:49,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-02-15 03:52:49,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 126. [2022-02-15 03:52:49,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 93 states have (on average 1.021505376344086) internal successors, (95), 93 states have internal predecessors, (95), 29 states have call successors, (29), 4 states have call predecessors, (29), 3 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-15 03:52:49,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 152 transitions. [2022-02-15 03:52:49,136 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 152 transitions. Word has length 213 [2022-02-15 03:52:49,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:49,136 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 152 transitions. [2022-02-15 03:52:49,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 27 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-02-15 03:52:49,136 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 152 transitions. [2022-02-15 03:52:49,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-02-15 03:52:49,137 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:49,137 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:49,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-15 03:52:49,137 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:49,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:49,138 INFO L85 PathProgramCache]: Analyzing trace with hash -524292281, now seen corresponding path program 26 times [2022-02-15 03:52:49,138 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:49,138 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443009750] [2022-02-15 03:52:49,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:49,140 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:49,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:49,141 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:52:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:52:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:52:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:52:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:52:49,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:52:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:52:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:52:49,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:52:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2022-02-15 03:52:49,617 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:49,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443009750] [2022-02-15 03:52:49,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1443009750] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:49,618 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:49,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-02-15 03:52:49,618 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806448420] [2022-02-15 03:52:49,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:49,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-15 03:52:49,619 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:49,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-15 03:52:49,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=787, Unknown=0, NotChecked=0, Total=870 [2022-02-15 03:52:49,620 INFO L87 Difference]: Start difference. First operand 126 states and 152 transitions. Second operand has 30 states, 30 states have (on average 3.0) internal successors, (90), 29 states have internal predecessors, (90), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-15 03:52:52,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:52,298 INFO L93 Difference]: Finished difference Result 252 states and 308 transitions. [2022-02-15 03:52:52,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-15 03:52:52,299 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.0) internal successors, (90), 29 states have internal predecessors, (90), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Word has length 221 [2022-02-15 03:52:52,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:52,300 INFO L225 Difference]: With dead ends: 252 [2022-02-15 03:52:52,300 INFO L226 Difference]: Without dead ends: 241 [2022-02-15 03:52:52,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=243, Invalid=2949, Unknown=0, NotChecked=0, Total=3192 [2022-02-15 03:52:52,301 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 263 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 6253 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 6555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 6253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:52,301 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [265 Valid, 156 Invalid, 6555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 6253 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-02-15 03:52:52,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-02-15 03:52:52,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 130. [2022-02-15 03:52:52,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 96 states have (on average 1.0208333333333333) internal successors, (98), 96 states have internal predecessors, (98), 30 states have call successors, (30), 4 states have call predecessors, (30), 3 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-15 03:52:52,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 157 transitions. [2022-02-15 03:52:52,341 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 157 transitions. Word has length 221 [2022-02-15 03:52:52,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:52,341 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 157 transitions. [2022-02-15 03:52:52,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.0) internal successors, (90), 29 states have internal predecessors, (90), 28 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-02-15 03:52:52,341 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 157 transitions. [2022-02-15 03:52:52,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-02-15 03:52:52,342 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:52,342 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:52,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-15 03:52:52,342 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:52,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:52,343 INFO L85 PathProgramCache]: Analyzing trace with hash 344717474, now seen corresponding path program 27 times [2022-02-15 03:52:52,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:52,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344367748] [2022-02-15 03:52:52,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:52,345 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:52,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:52,346 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:52,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:52,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:52,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:52,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:52,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:52:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:52:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:52:52,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:52:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:52:52,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:52:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:52:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:52:52,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:52:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:52:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:52,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2022-02-15 03:52:52,849 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:52,849 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344367748] [2022-02-15 03:52:52,849 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1344367748] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:52,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:52,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-02-15 03:52:52,849 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811514001] [2022-02-15 03:52:52,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:52,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-02-15 03:52:52,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:52,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-02-15 03:52:52,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=844, Unknown=0, NotChecked=0, Total=930 [2022-02-15 03:52:52,850 INFO L87 Difference]: Start difference. First operand 130 states and 157 transitions. Second operand has 31 states, 31 states have (on average 3.0) internal successors, (93), 30 states have internal predecessors, (93), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-15 03:52:55,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:55,972 INFO L93 Difference]: Finished difference Result 260 states and 318 transitions. [2022-02-15 03:52:55,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-15 03:52:55,973 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.0) internal successors, (93), 30 states have internal predecessors, (93), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Word has length 229 [2022-02-15 03:52:55,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:55,974 INFO L225 Difference]: With dead ends: 260 [2022-02-15 03:52:55,974 INFO L226 Difference]: Without dead ends: 249 [2022-02-15 03:52:55,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=252, Invalid=3170, Unknown=0, NotChecked=0, Total=3422 [2022-02-15 03:52:55,975 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 241 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 7744 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 8026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 7744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:55,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 239 Invalid, 8026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 7744 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:52:55,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-02-15 03:52:56,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 134. [2022-02-15 03:52:56,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 99 states have (on average 1.02020202020202) internal successors, (101), 99 states have internal predecessors, (101), 31 states have call successors, (31), 4 states have call predecessors, (31), 3 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-15 03:52:56,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 162 transitions. [2022-02-15 03:52:56,010 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 162 transitions. Word has length 229 [2022-02-15 03:52:56,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:56,010 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 162 transitions. [2022-02-15 03:52:56,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.0) internal successors, (93), 30 states have internal predecessors, (93), 29 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2022-02-15 03:52:56,011 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 162 transitions. [2022-02-15 03:52:56,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-02-15 03:52:56,011 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:56,012 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:56,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-02-15 03:52:56,012 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:56,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:56,012 INFO L85 PathProgramCache]: Analyzing trace with hash -661489923, now seen corresponding path program 28 times [2022-02-15 03:52:56,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:56,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606983809] [2022-02-15 03:52:56,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:56,014 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:56,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:56,015 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:52:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:52:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:52:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:52:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:52:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:52:56,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:52:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:52:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:52:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:52:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:52:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:52:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:52:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:52:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:52:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:52:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:52:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:52:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:52:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:52:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:52:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:52:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:52:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:52:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:52:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:52:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:52:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:52:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:52:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:52:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2022-02-15 03:52:56,549 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:52:56,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606983809] [2022-02-15 03:52:56,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1606983809] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:52:56,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:52:56,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-02-15 03:52:56,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313215133] [2022-02-15 03:52:56,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:52:56,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-15 03:52:56,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:52:56,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-15 03:52:56,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=903, Unknown=0, NotChecked=0, Total=992 [2022-02-15 03:52:56,551 INFO L87 Difference]: Start difference. First operand 134 states and 162 transitions. Second operand has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-15 03:52:59,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:52:59,805 INFO L93 Difference]: Finished difference Result 268 states and 328 transitions. [2022-02-15 03:52:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-02-15 03:52:59,805 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Word has length 237 [2022-02-15 03:52:59,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:52:59,807 INFO L225 Difference]: With dead ends: 268 [2022-02-15 03:52:59,807 INFO L226 Difference]: Without dead ends: 257 [2022-02-15 03:52:59,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=261, Invalid=3399, Unknown=0, NotChecked=0, Total=3660 [2022-02-15 03:52:59,808 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 259 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 7975 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 8277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 7975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:52:59,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 222 Invalid, 8277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 7975 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:52:59,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2022-02-15 03:52:59,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 138. [2022-02-15 03:52:59,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 102 states have (on average 1.0196078431372548) internal successors, (104), 102 states have internal predecessors, (104), 32 states have call successors, (32), 4 states have call predecessors, (32), 3 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-15 03:52:59,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2022-02-15 03:52:59,841 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 237 [2022-02-15 03:52:59,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:52:59,842 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2022-02-15 03:52:59,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.0) internal successors, (96), 31 states have internal predecessors, (96), 30 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2022-02-15 03:52:59,842 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2022-02-15 03:52:59,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-02-15 03:52:59,842 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:52:59,843 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:52:59,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-15 03:52:59,843 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:52:59,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:52:59,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1718719912, now seen corresponding path program 29 times [2022-02-15 03:52:59,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:52:59,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1672642626] [2022-02-15 03:52:59,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:52:59,845 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:52:59,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:52:59,846 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:52:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:00,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked. [2022-02-15 03:53:00,420 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:00,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1672642626] [2022-02-15 03:53:00,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1672642626] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:00,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:00,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-02-15 03:53:00,421 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889683465] [2022-02-15 03:53:00,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:00,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-02-15 03:53:00,421 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:00,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-02-15 03:53:00,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=964, Unknown=0, NotChecked=0, Total=1056 [2022-02-15 03:53:00,421 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-15 03:53:03,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:03,608 INFO L93 Difference]: Finished difference Result 276 states and 338 transitions. [2022-02-15 03:53:03,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-15 03:53:03,609 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Word has length 245 [2022-02-15 03:53:03,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:03,610 INFO L225 Difference]: With dead ends: 276 [2022-02-15 03:53:03,610 INFO L226 Difference]: Without dead ends: 265 [2022-02-15 03:53:03,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=270, Invalid=3636, Unknown=0, NotChecked=0, Total=3906 [2022-02-15 03:53:03,611 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 291 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 7723 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 8059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 7723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:03,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [293 Valid, 170 Invalid, 8059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 7723 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-02-15 03:53:03,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-02-15 03:53:03,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 142. [2022-02-15 03:53:03,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 105 states have (on average 1.019047619047619) internal successors, (107), 105 states have internal predecessors, (107), 33 states have call successors, (33), 4 states have call predecessors, (33), 3 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-15 03:53:03,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 172 transitions. [2022-02-15 03:53:03,650 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 172 transitions. Word has length 245 [2022-02-15 03:53:03,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:03,650 INFO L470 AbstractCegarLoop]: Abstraction has 142 states and 172 transitions. [2022-02-15 03:53:03,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0) internal successors, (99), 32 states have internal predecessors, (99), 31 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-02-15 03:53:03,651 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 172 transitions. [2022-02-15 03:53:03,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-02-15 03:53:03,651 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:03,652 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:03,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-15 03:53:03,652 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:03,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:03,652 INFO L85 PathProgramCache]: Analyzing trace with hash -650456397, now seen corresponding path program 30 times [2022-02-15 03:53:03,652 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:03,652 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124204369] [2022-02-15 03:53:03,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:03,654 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:53:03,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:03,656 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:03,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:04,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:53:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:04,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2022-02-15 03:53:04,268 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:04,268 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124204369] [2022-02-15 03:53:04,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1124204369] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:04,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:04,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-02-15 03:53:04,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843772308] [2022-02-15 03:53:04,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:04,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-02-15 03:53:04,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:04,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-02-15 03:53:04,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1027, Unknown=0, NotChecked=0, Total=1122 [2022-02-15 03:53:04,270 INFO L87 Difference]: Start difference. First operand 142 states and 172 transitions. Second operand has 34 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-15 03:53:07,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:07,827 INFO L93 Difference]: Finished difference Result 284 states and 348 transitions. [2022-02-15 03:53:07,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-15 03:53:07,827 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Word has length 253 [2022-02-15 03:53:07,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:07,829 INFO L225 Difference]: With dead ends: 284 [2022-02-15 03:53:07,829 INFO L226 Difference]: Without dead ends: 273 [2022-02-15 03:53:07,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=279, Invalid=3881, Unknown=0, NotChecked=0, Total=4160 [2022-02-15 03:53:07,830 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 283 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 8863 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 9193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 8863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:07,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [285 Valid, 218 Invalid, 9193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 8863 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-02-15 03:53:07,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-02-15 03:53:07,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 146. [2022-02-15 03:53:07,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 108 states have internal predecessors, (110), 34 states have call successors, (34), 4 states have call predecessors, (34), 3 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-15 03:53:07,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 177 transitions. [2022-02-15 03:53:07,873 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 177 transitions. Word has length 253 [2022-02-15 03:53:07,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:07,874 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 177 transitions. [2022-02-15 03:53:07,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.0) internal successors, (102), 33 states have internal predecessors, (102), 32 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-02-15 03:53:07,874 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 177 transitions. [2022-02-15 03:53:07,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-02-15 03:53:07,875 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:07,875 INFO L514 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:07,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-15 03:53:07,875 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:07,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:07,875 INFO L85 PathProgramCache]: Analyzing trace with hash 777170958, now seen corresponding path program 31 times [2022-02-15 03:53:07,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:07,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048060042] [2022-02-15 03:53:07,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:07,877 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:53:07,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:07,879 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:08,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:08,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:08,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:08,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:08,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:08,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:53:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:53:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:08,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2022-02-15 03:53:08,459 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:08,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048060042] [2022-02-15 03:53:08,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2048060042] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:08,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:08,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-02-15 03:53:08,459 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026631136] [2022-02-15 03:53:08,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:08,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-02-15 03:53:08,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:08,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-02-15 03:53:08,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1092, Unknown=0, NotChecked=0, Total=1190 [2022-02-15 03:53:08,460 INFO L87 Difference]: Start difference. First operand 146 states and 177 transitions. Second operand has 35 states, 35 states have (on average 3.0) internal successors, (105), 34 states have internal predecessors, (105), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-15 03:53:11,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:11,924 INFO L93 Difference]: Finished difference Result 292 states and 358 transitions. [2022-02-15 03:53:11,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-15 03:53:11,925 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.0) internal successors, (105), 34 states have internal predecessors, (105), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Word has length 261 [2022-02-15 03:53:11,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:11,926 INFO L225 Difference]: With dead ends: 292 [2022-02-15 03:53:11,926 INFO L226 Difference]: Without dead ends: 281 [2022-02-15 03:53:11,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 497 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=4134, Unknown=0, NotChecked=0, Total=4422 [2022-02-15 03:53:11,927 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 327 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 8157 mSolverCounterSat, 376 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 8533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 376 IncrementalHoareTripleChecker+Valid, 8157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:11,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 136 Invalid, 8533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [376 Valid, 8157 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-02-15 03:53:11,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-02-15 03:53:11,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 150. [2022-02-15 03:53:11,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 111 states have (on average 1.018018018018018) internal successors, (113), 111 states have internal predecessors, (113), 35 states have call successors, (35), 4 states have call predecessors, (35), 3 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-15 03:53:11,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 182 transitions. [2022-02-15 03:53:11,966 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 182 transitions. Word has length 261 [2022-02-15 03:53:11,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:11,966 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 182 transitions. [2022-02-15 03:53:11,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.0) internal successors, (105), 34 states have internal predecessors, (105), 33 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-02-15 03:53:11,967 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 182 transitions. [2022-02-15 03:53:11,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-02-15 03:53:11,968 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:11,968 INFO L514 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:11,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-15 03:53:11,968 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:11,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:11,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1150354025, now seen corresponding path program 32 times [2022-02-15 03:53:11,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:11,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [69619948] [2022-02-15 03:53:11,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:11,970 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:53:11,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:11,971 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:12,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:12,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:53:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:53:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:53:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:12,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2022-02-15 03:53:12,616 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:12,616 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [69619948] [2022-02-15 03:53:12,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [69619948] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:12,616 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:12,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-02-15 03:53:12,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30866353] [2022-02-15 03:53:12,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:12,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-02-15 03:53:12,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:12,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-02-15 03:53:12,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=1159, Unknown=0, NotChecked=0, Total=1260 [2022-02-15 03:53:12,617 INFO L87 Difference]: Start difference. First operand 150 states and 182 transitions. Second operand has 36 states, 36 states have (on average 3.0) internal successors, (108), 35 states have internal predecessors, (108), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-15 03:53:16,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:16,681 INFO L93 Difference]: Finished difference Result 300 states and 368 transitions. [2022-02-15 03:53:16,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-15 03:53:16,682 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.0) internal successors, (108), 35 states have internal predecessors, (108), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Word has length 269 [2022-02-15 03:53:16,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:16,683 INFO L225 Difference]: With dead ends: 300 [2022-02-15 03:53:16,683 INFO L226 Difference]: Without dead ends: 289 [2022-02-15 03:53:16,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=297, Invalid=4395, Unknown=0, NotChecked=0, Total=4692 [2022-02-15 03:53:16,684 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 299 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 10099 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 10449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 10099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:16,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 234 Invalid, 10449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 10099 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-02-15 03:53:16,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2022-02-15 03:53:16,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 154. [2022-02-15 03:53:16,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 114 states have (on average 1.0175438596491229) internal successors, (116), 114 states have internal predecessors, (116), 36 states have call successors, (36), 4 states have call predecessors, (36), 3 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-15 03:53:16,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 187 transitions. [2022-02-15 03:53:16,754 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 187 transitions. Word has length 269 [2022-02-15 03:53:16,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:16,754 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 187 transitions. [2022-02-15 03:53:16,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.0) internal successors, (108), 35 states have internal predecessors, (108), 34 states have call successors, (35), 3 states have call predecessors, (35), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-02-15 03:53:16,754 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 187 transitions. [2022-02-15 03:53:16,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-02-15 03:53:16,755 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:16,755 INFO L514 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:16,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-15 03:53:16,756 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:16,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:16,756 INFO L85 PathProgramCache]: Analyzing trace with hash -592393788, now seen corresponding path program 33 times [2022-02-15 03:53:16,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:16,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2062520217] [2022-02-15 03:53:16,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:16,758 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:53:16,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:16,759 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:17,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:17,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:17,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:53:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:53:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:53:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:53:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2022-02-15 03:53:17,399 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:17,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2062520217] [2022-02-15 03:53:17,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2062520217] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:17,399 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:17,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-02-15 03:53:17,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380186758] [2022-02-15 03:53:17,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:17,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-02-15 03:53:17,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:17,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-02-15 03:53:17,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1228, Unknown=0, NotChecked=0, Total=1332 [2022-02-15 03:53:17,400 INFO L87 Difference]: Start difference. First operand 154 states and 187 transitions. Second operand has 37 states, 37 states have (on average 3.0) internal successors, (111), 36 states have internal predecessors, (111), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-15 03:53:22,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:22,009 INFO L93 Difference]: Finished difference Result 308 states and 378 transitions. [2022-02-15 03:53:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-02-15 03:53:22,009 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.0) internal successors, (111), 36 states have internal predecessors, (111), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Word has length 277 [2022-02-15 03:53:22,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:22,013 INFO L225 Difference]: With dead ends: 308 [2022-02-15 03:53:22,013 INFO L226 Difference]: Without dead ends: 297 [2022-02-15 03:53:22,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=306, Invalid=4664, Unknown=0, NotChecked=0, Total=4970 [2022-02-15 03:53:22,013 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 305 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 10824 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 11182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 10824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:22,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [307 Valid, 247 Invalid, 11182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 10824 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-02-15 03:53:22,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-02-15 03:53:22,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 158. [2022-02-15 03:53:22,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 117 states have (on average 1.017094017094017) internal successors, (119), 117 states have internal predecessors, (119), 37 states have call successors, (37), 4 states have call predecessors, (37), 3 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-15 03:53:22,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 192 transitions. [2022-02-15 03:53:22,058 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 192 transitions. Word has length 277 [2022-02-15 03:53:22,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:22,058 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 192 transitions. [2022-02-15 03:53:22,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.0) internal successors, (111), 36 states have internal predecessors, (111), 35 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-02-15 03:53:22,058 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 192 transitions. [2022-02-15 03:53:22,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-02-15 03:53:22,059 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:22,059 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:22,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-15 03:53:22,060 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:22,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:22,060 INFO L85 PathProgramCache]: Analyzing trace with hash -865270241, now seen corresponding path program 34 times [2022-02-15 03:53:22,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:22,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430164736] [2022-02-15 03:53:22,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:22,062 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:53:22,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:22,063 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:22,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:53:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:53:22,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:53:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:53:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:53:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2022-02-15 03:53:22,770 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:22,770 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430164736] [2022-02-15 03:53:22,770 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [430164736] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:22,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:22,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-02-15 03:53:22,771 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278898609] [2022-02-15 03:53:22,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:22,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-15 03:53:22,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:22,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-15 03:53:22,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1299, Unknown=0, NotChecked=0, Total=1406 [2022-02-15 03:53:22,772 INFO L87 Difference]: Start difference. First operand 158 states and 192 transitions. Second operand has 38 states, 38 states have (on average 3.0) internal successors, (114), 37 states have internal predecessors, (114), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-15 03:53:27,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:27,140 INFO L93 Difference]: Finished difference Result 316 states and 388 transitions. [2022-02-15 03:53:27,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-15 03:53:27,141 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.0) internal successors, (114), 37 states have internal predecessors, (114), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Word has length 285 [2022-02-15 03:53:27,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:27,142 INFO L225 Difference]: With dead ends: 316 [2022-02-15 03:53:27,142 INFO L226 Difference]: Without dead ends: 305 [2022-02-15 03:53:27,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=315, Invalid=4941, Unknown=0, NotChecked=0, Total=5256 [2022-02-15 03:53:27,143 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 353 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 9914 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 10322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 9914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:27,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 155 Invalid, 10322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 9914 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-02-15 03:53:27,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2022-02-15 03:53:27,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 162. [2022-02-15 03:53:27,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 120 states have (on average 1.0166666666666666) internal successors, (122), 120 states have internal predecessors, (122), 38 states have call successors, (38), 4 states have call predecessors, (38), 3 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-15 03:53:27,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 197 transitions. [2022-02-15 03:53:27,189 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 197 transitions. Word has length 285 [2022-02-15 03:53:27,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:27,189 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 197 transitions. [2022-02-15 03:53:27,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.0) internal successors, (114), 37 states have internal predecessors, (114), 36 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2022-02-15 03:53:27,190 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 197 transitions. [2022-02-15 03:53:27,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-02-15 03:53:27,190 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:27,191 INFO L514 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:27,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-15 03:53:27,191 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:27,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:27,191 INFO L85 PathProgramCache]: Analyzing trace with hash -25118854, now seen corresponding path program 35 times [2022-02-15 03:53:27,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:27,191 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912354232] [2022-02-15 03:53:27,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:27,195 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:53:27,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:27,197 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:27,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:27,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:27,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:27,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:27,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:27,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:53:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:53:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:53:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:53:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:53:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:53:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2022-02-15 03:53:27,902 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:27,902 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912354232] [2022-02-15 03:53:27,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1912354232] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:27,902 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:27,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-02-15 03:53:27,902 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262520581] [2022-02-15 03:53:27,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:27,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-02-15 03:53:27,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:27,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-02-15 03:53:27,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1372, Unknown=0, NotChecked=0, Total=1482 [2022-02-15 03:53:27,904 INFO L87 Difference]: Start difference. First operand 162 states and 197 transitions. Second operand has 39 states, 39 states have (on average 3.0) internal successors, (117), 38 states have internal predecessors, (117), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-15 03:53:32,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:32,866 INFO L93 Difference]: Finished difference Result 324 states and 398 transitions. [2022-02-15 03:53:32,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-15 03:53:32,866 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.0) internal successors, (117), 38 states have internal predecessors, (117), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Word has length 293 [2022-02-15 03:53:32,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:32,868 INFO L225 Difference]: With dead ends: 324 [2022-02-15 03:53:32,868 INFO L226 Difference]: Without dead ends: 313 [2022-02-15 03:53:32,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=324, Invalid=5226, Unknown=0, NotChecked=0, Total=5550 [2022-02-15 03:53:32,869 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 331 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 11779 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 12167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 11779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:32,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 238 Invalid, 12167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 11779 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-02-15 03:53:32,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-02-15 03:53:32,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 166. [2022-02-15 03:53:32,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 123 states have (on average 1.016260162601626) internal successors, (125), 123 states have internal predecessors, (125), 39 states have call successors, (39), 4 states have call predecessors, (39), 3 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-15 03:53:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 202 transitions. [2022-02-15 03:53:32,921 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 202 transitions. Word has length 293 [2022-02-15 03:53:32,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:32,921 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 202 transitions. [2022-02-15 03:53:32,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.0) internal successors, (117), 38 states have internal predecessors, (117), 37 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-02-15 03:53:32,922 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 202 transitions. [2022-02-15 03:53:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-02-15 03:53:32,923 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:32,923 INFO L514 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:32,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-15 03:53:32,923 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:32,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:32,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1923538389, now seen corresponding path program 36 times [2022-02-15 03:53:32,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:32,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060942308] [2022-02-15 03:53:32,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:32,925 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:53:32,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:32,927 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:33,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:33,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:33,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:33,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:33,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:33,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:53:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:53:33,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:53:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:53:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:53:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:53:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:53:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:33,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2022-02-15 03:53:33,666 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:33,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060942308] [2022-02-15 03:53:33,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1060942308] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:33,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:33,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-02-15 03:53:33,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826087719] [2022-02-15 03:53:33,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:33,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-15 03:53:33,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:33,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-15 03:53:33,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1447, Unknown=0, NotChecked=0, Total=1560 [2022-02-15 03:53:33,667 INFO L87 Difference]: Start difference. First operand 166 states and 202 transitions. Second operand has 40 states, 40 states have (on average 3.0) internal successors, (120), 39 states have internal predecessors, (120), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-15 03:53:38,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:38,440 INFO L93 Difference]: Finished difference Result 332 states and 408 transitions. [2022-02-15 03:53:38,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-15 03:53:38,441 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.0) internal successors, (120), 39 states have internal predecessors, (120), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Word has length 301 [2022-02-15 03:53:38,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:38,442 INFO L225 Difference]: With dead ends: 332 [2022-02-15 03:53:38,442 INFO L226 Difference]: Without dead ends: 321 [2022-02-15 03:53:38,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=333, Invalid=5519, Unknown=0, NotChecked=0, Total=5852 [2022-02-15 03:53:38,443 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 373 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 11068 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 11500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 11068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:38,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 161 Invalid, 11500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 11068 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-02-15 03:53:38,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-02-15 03:53:38,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 170. [2022-02-15 03:53:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 126 states have (on average 1.0158730158730158) internal successors, (128), 126 states have internal predecessors, (128), 40 states have call successors, (40), 4 states have call predecessors, (40), 3 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-15 03:53:38,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 207 transitions. [2022-02-15 03:53:38,494 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 207 transitions. Word has length 301 [2022-02-15 03:53:38,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:38,494 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 207 transitions. [2022-02-15 03:53:38,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.0) internal successors, (120), 39 states have internal predecessors, (120), 38 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2022-02-15 03:53:38,495 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 207 transitions. [2022-02-15 03:53:38,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-02-15 03:53:38,496 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:38,496 INFO L514 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:38,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-02-15 03:53:38,496 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:38,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:38,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1033533744, now seen corresponding path program 37 times [2022-02-15 03:53:38,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:38,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770598537] [2022-02-15 03:53:38,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:38,498 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:53:38,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:38,500 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:39,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:39,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:39,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:53:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:53:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:53:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:53:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:53:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:53:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:53:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:53:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2664 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2664 trivial. 0 not checked. [2022-02-15 03:53:39,260 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:39,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770598537] [2022-02-15 03:53:39,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [770598537] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:39,260 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:39,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2022-02-15 03:53:39,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830942989] [2022-02-15 03:53:39,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:39,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-02-15 03:53:39,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:39,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-02-15 03:53:39,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1524, Unknown=0, NotChecked=0, Total=1640 [2022-02-15 03:53:39,261 INFO L87 Difference]: Start difference. First operand 170 states and 207 transitions. Second operand has 41 states, 41 states have (on average 3.0) internal successors, (123), 40 states have internal predecessors, (123), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-15 03:53:45,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:45,002 INFO L93 Difference]: Finished difference Result 340 states and 418 transitions. [2022-02-15 03:53:45,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-15 03:53:45,003 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.0) internal successors, (123), 40 states have internal predecessors, (123), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Word has length 309 [2022-02-15 03:53:45,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:45,004 INFO L225 Difference]: With dead ends: 340 [2022-02-15 03:53:45,004 INFO L226 Difference]: Without dead ends: 329 [2022-02-15 03:53:45,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=342, Invalid=5820, Unknown=0, NotChecked=0, Total=6162 [2022-02-15 03:53:45,005 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 331 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 13879 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 14271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 13879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:45,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 294 Invalid, 14271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 13879 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-15 03:53:45,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-02-15 03:53:45,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 174. [2022-02-15 03:53:45,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 129 states have (on average 1.0155038759689923) internal successors, (131), 129 states have internal predecessors, (131), 41 states have call successors, (41), 4 states have call predecessors, (41), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-15 03:53:45,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 212 transitions. [2022-02-15 03:53:45,059 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 212 transitions. Word has length 309 [2022-02-15 03:53:45,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:45,060 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 212 transitions. [2022-02-15 03:53:45,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.0) internal successors, (123), 40 states have internal predecessors, (123), 39 states have call successors, (40), 3 states have call predecessors, (40), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2022-02-15 03:53:45,060 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 212 transitions. [2022-02-15 03:53:45,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-02-15 03:53:45,061 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:45,061 INFO L514 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:45,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-02-15 03:53:45,061 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:45,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:45,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1995011701, now seen corresponding path program 38 times [2022-02-15 03:53:45,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:45,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [46834802] [2022-02-15 03:53:45,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:45,064 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:53:45,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:45,065 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:45,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:45,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:45,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:45,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:45,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:45,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:45,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:45,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:53:45,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:53:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:53:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:53:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:53:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:53:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:53:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:53:45,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:53:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2022-02-15 03:53:45,862 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:45,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [46834802] [2022-02-15 03:53:45,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [46834802] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:45,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:45,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-02-15 03:53:45,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634892471] [2022-02-15 03:53:45,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:45,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-15 03:53:45,863 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:45,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-15 03:53:45,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1603, Unknown=0, NotChecked=0, Total=1722 [2022-02-15 03:53:45,864 INFO L87 Difference]: Start difference. First operand 174 states and 212 transitions. Second operand has 42 states, 42 states have (on average 3.0) internal successors, (126), 41 states have internal predecessors, (126), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-15 03:53:51,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:51,687 INFO L93 Difference]: Finished difference Result 348 states and 428 transitions. [2022-02-15 03:53:51,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-02-15 03:53:51,687 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.0) internal successors, (126), 41 states have internal predecessors, (126), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Word has length 317 [2022-02-15 03:53:51,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:51,688 INFO L225 Difference]: With dead ends: 348 [2022-02-15 03:53:51,688 INFO L226 Difference]: Without dead ends: 337 [2022-02-15 03:53:51,689 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 742 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=351, Invalid=6129, Unknown=0, NotChecked=0, Total=6480 [2022-02-15 03:53:51,690 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 353 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 14026 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 14442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 14026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:51,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 267 Invalid, 14442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 14026 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-02-15 03:53:51,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-02-15 03:53:51,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 178. [2022-02-15 03:53:51,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 132 states have (on average 1.0151515151515151) internal successors, (134), 132 states have internal predecessors, (134), 42 states have call successors, (42), 4 states have call predecessors, (42), 3 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-15 03:53:51,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 217 transitions. [2022-02-15 03:53:51,746 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 217 transitions. Word has length 317 [2022-02-15 03:53:51,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:51,746 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 217 transitions. [2022-02-15 03:53:51,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.0) internal successors, (126), 41 states have internal predecessors, (126), 40 states have call successors, (41), 3 states have call predecessors, (41), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2022-02-15 03:53:51,746 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 217 transitions. [2022-02-15 03:53:51,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2022-02-15 03:53:51,747 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:51,747 INFO L514 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:51,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-02-15 03:53:51,748 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:51,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:51,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1814688026, now seen corresponding path program 39 times [2022-02-15 03:53:51,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:51,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735963923] [2022-02-15 03:53:51,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:51,750 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:53:51,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:51,752 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:52,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:52,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:52,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:53:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:53:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:53:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:53:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:53:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:53:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:53:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:53:52,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:53:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:53:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:52,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2964 trivial. 0 not checked. [2022-02-15 03:53:52,561 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:52,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735963923] [2022-02-15 03:53:52,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [735963923] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:52,561 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:52,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-02-15 03:53:52,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552111283] [2022-02-15 03:53:52,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:52,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-15 03:53:52,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:52,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-15 03:53:52,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1684, Unknown=0, NotChecked=0, Total=1806 [2022-02-15 03:53:52,563 INFO L87 Difference]: Start difference. First operand 178 states and 217 transitions. Second operand has 43 states, 43 states have (on average 3.0) internal successors, (129), 42 states have internal predecessors, (129), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-15 03:53:58,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:53:58,542 INFO L93 Difference]: Finished difference Result 356 states and 438 transitions. [2022-02-15 03:53:58,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-15 03:53:58,542 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.0) internal successors, (129), 42 states have internal predecessors, (129), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Word has length 325 [2022-02-15 03:53:58,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:53:58,543 INFO L225 Difference]: With dead ends: 356 [2022-02-15 03:53:58,544 INFO L226 Difference]: Without dead ends: 345 [2022-02-15 03:53:58,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 781 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=360, Invalid=6446, Unknown=0, NotChecked=0, Total=6806 [2022-02-15 03:53:58,544 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 375 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 14165 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 14605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 14165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:53:58,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [377 Valid, 240 Invalid, 14605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 14165 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 03:53:58,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2022-02-15 03:53:58,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 182. [2022-02-15 03:53:58,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 135 states have (on average 1.0148148148148148) internal successors, (137), 135 states have internal predecessors, (137), 43 states have call successors, (43), 4 states have call predecessors, (43), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-15 03:53:58,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 222 transitions. [2022-02-15 03:53:58,606 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 222 transitions. Word has length 325 [2022-02-15 03:53:58,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:53:58,606 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 222 transitions. [2022-02-15 03:53:58,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.0) internal successors, (129), 42 states have internal predecessors, (129), 41 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2022-02-15 03:53:58,606 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 222 transitions. [2022-02-15 03:53:58,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-02-15 03:53:58,607 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:53:58,608 INFO L514 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:53:58,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-02-15 03:53:58,608 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:53:58,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:53:58,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1315698367, now seen corresponding path program 40 times [2022-02-15 03:53:58,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:53:58,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711480577] [2022-02-15 03:53:58,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:53:58,610 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:53:58,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:53:58,612 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:53:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:53:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:53:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:53:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:53:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:53:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:53:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:53:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:53:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:53:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:53:59,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:53:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:53:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:53:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:53:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:53:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:53:59,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:53:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:53:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:53:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:53:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:53:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:53:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:53:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:53:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:53:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:53:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:53:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:53:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:53:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:53:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:53:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:53:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:53:59,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:53:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:53:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:53:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:53:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:53:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:53:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:53:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:53:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:53:59,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2022-02-15 03:53:59,495 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:53:59,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711480577] [2022-02-15 03:53:59,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1711480577] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:53:59,496 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:53:59,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-02-15 03:53:59,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556694321] [2022-02-15 03:53:59,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:53:59,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-02-15 03:53:59,496 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:53:59,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-02-15 03:53:59,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1767, Unknown=0, NotChecked=0, Total=1892 [2022-02-15 03:53:59,500 INFO L87 Difference]: Start difference. First operand 182 states and 222 transitions. Second operand has 44 states, 44 states have (on average 3.0) internal successors, (132), 43 states have internal predecessors, (132), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-15 03:54:05,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:05,993 INFO L93 Difference]: Finished difference Result 364 states and 448 transitions. [2022-02-15 03:54:05,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-15 03:54:05,993 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.0) internal successors, (132), 43 states have internal predecessors, (132), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Word has length 333 [2022-02-15 03:54:05,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:05,995 INFO L225 Difference]: With dead ends: 364 [2022-02-15 03:54:05,995 INFO L226 Difference]: Without dead ends: 353 [2022-02-15 03:54:05,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 821 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=369, Invalid=6771, Unknown=0, NotChecked=0, Total=7140 [2022-02-15 03:54:05,995 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 373 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 15388 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 15828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 15388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:05,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [375 Valid, 273 Invalid, 15828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 15388 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-02-15 03:54:05,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-02-15 03:54:06,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 186. [2022-02-15 03:54:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 138 states have (on average 1.0144927536231885) internal successors, (140), 138 states have internal predecessors, (140), 44 states have call successors, (44), 4 states have call predecessors, (44), 3 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-15 03:54:06,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 227 transitions. [2022-02-15 03:54:06,058 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 227 transitions. Word has length 333 [2022-02-15 03:54:06,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:06,058 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 227 transitions. [2022-02-15 03:54:06,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.0) internal successors, (132), 43 states have internal predecessors, (132), 42 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-02-15 03:54:06,058 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 227 transitions. [2022-02-15 03:54:06,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-02-15 03:54:06,059 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:06,059 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:06,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-02-15 03:54:06,060 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:06,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1259042972, now seen corresponding path program 41 times [2022-02-15 03:54:06,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:06,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1946102603] [2022-02-15 03:54:06,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:06,062 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:06,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:06,064 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:54:06,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:54:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:54:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:54:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:54:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:54:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:54:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:54:06,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:54:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:54:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:54:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:54:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:54:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:54:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:54:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:54:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:54:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:54:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:54:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:54:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:54:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:54:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:54:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:54:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:54:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:54:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:54:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:54:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:54:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:54:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:54:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:54:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:54:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:54:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:54:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:54:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:54:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:54:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:54:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:54:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:54:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:06,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2022-02-15 03:54:06,926 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:06,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1946102603] [2022-02-15 03:54:06,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1946102603] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:06,926 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:06,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2022-02-15 03:54:06,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532275701] [2022-02-15 03:54:06,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:06,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-02-15 03:54:06,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:06,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-02-15 03:54:06,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1852, Unknown=0, NotChecked=0, Total=1980 [2022-02-15 03:54:06,928 INFO L87 Difference]: Start difference. First operand 186 states and 227 transitions. Second operand has 45 states, 45 states have (on average 3.0) internal successors, (135), 44 states have internal predecessors, (135), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-15 03:54:13,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:13,218 INFO L93 Difference]: Finished difference Result 372 states and 458 transitions. [2022-02-15 03:54:13,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-15 03:54:13,219 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.0) internal successors, (135), 44 states have internal predecessors, (135), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Word has length 341 [2022-02-15 03:54:13,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:13,220 INFO L225 Difference]: With dead ends: 372 [2022-02-15 03:54:13,220 INFO L226 Difference]: Without dead ends: 361 [2022-02-15 03:54:13,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=378, Invalid=7104, Unknown=0, NotChecked=0, Total=7482 [2022-02-15 03:54:13,221 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 419 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 14419 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 14907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 14419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:13,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 186 Invalid, 14907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 14419 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-02-15 03:54:13,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-02-15 03:54:13,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 190. [2022-02-15 03:54:13,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 141 states have (on average 1.0141843971631206) internal successors, (143), 141 states have internal predecessors, (143), 45 states have call successors, (45), 4 states have call predecessors, (45), 3 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-15 03:54:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 232 transitions. [2022-02-15 03:54:13,286 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 232 transitions. Word has length 341 [2022-02-15 03:54:13,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:13,287 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 232 transitions. [2022-02-15 03:54:13,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.0) internal successors, (135), 44 states have internal predecessors, (135), 43 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-02-15 03:54:13,287 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 232 transitions. [2022-02-15 03:54:13,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2022-02-15 03:54:13,288 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:13,288 INFO L514 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:13,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-02-15 03:54:13,288 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:13,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:13,289 INFO L85 PathProgramCache]: Analyzing trace with hash -570991369, now seen corresponding path program 42 times [2022-02-15 03:54:13,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:13,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1935513023] [2022-02-15 03:54:13,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:13,291 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:13,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:13,293 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:13,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:54:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:54:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:54:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:54:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:54:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:54:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:54:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:54:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:54:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:54:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:54:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:54:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:54:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:54:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:54:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:54:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:54:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:54:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:54:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:54:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:54:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:54:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:54:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:54:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:54:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:54:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:54:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:54:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:54:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:54:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:54:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:54:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:54:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:54:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:54:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:54:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:54:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:54:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:54:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:54:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:54:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:54:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:14,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2022-02-15 03:54:14,200 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:14,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1935513023] [2022-02-15 03:54:14,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1935513023] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:14,200 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:14,200 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-02-15 03:54:14,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733325664] [2022-02-15 03:54:14,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:14,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-15 03:54:14,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:14,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-15 03:54:14,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1939, Unknown=0, NotChecked=0, Total=2070 [2022-02-15 03:54:14,202 INFO L87 Difference]: Start difference. First operand 190 states and 232 transitions. Second operand has 46 states, 46 states have (on average 3.0) internal successors, (138), 45 states have internal predecessors, (138), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-15 03:54:21,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:21,217 INFO L93 Difference]: Finished difference Result 380 states and 468 transitions. [2022-02-15 03:54:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-02-15 03:54:21,217 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 3.0) internal successors, (138), 45 states have internal predecessors, (138), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Word has length 349 [2022-02-15 03:54:21,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:21,219 INFO L225 Difference]: With dead ends: 380 [2022-02-15 03:54:21,219 INFO L226 Difference]: Without dead ends: 369 [2022-02-15 03:54:21,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 904 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=387, Invalid=7445, Unknown=0, NotChecked=0, Total=7832 [2022-02-15 03:54:21,220 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 403 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 16339 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 16813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 16339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:21,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [405 Valid, 254 Invalid, 16813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 16339 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-02-15 03:54:21,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-02-15 03:54:21,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 194. [2022-02-15 03:54:21,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 144 states have (on average 1.0138888888888888) internal successors, (146), 144 states have internal predecessors, (146), 46 states have call successors, (46), 4 states have call predecessors, (46), 3 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-15 03:54:21,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 237 transitions. [2022-02-15 03:54:21,292 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 237 transitions. Word has length 349 [2022-02-15 03:54:21,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:21,292 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 237 transitions. [2022-02-15 03:54:21,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.0) internal successors, (138), 45 states have internal predecessors, (138), 44 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2022-02-15 03:54:21,292 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 237 transitions. [2022-02-15 03:54:21,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-02-15 03:54:21,293 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:21,293 INFO L514 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:21,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-02-15 03:54:21,294 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:21,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:21,294 INFO L85 PathProgramCache]: Analyzing trace with hash -49105326, now seen corresponding path program 43 times [2022-02-15 03:54:21,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:21,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [85505213] [2022-02-15 03:54:21,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:21,297 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:21,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:21,299 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:54:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:54:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:54:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:54:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:54:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:54:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:54:22,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:54:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:54:22,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:54:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:54:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:54:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:54:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:54:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:54:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:54:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:54:22,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:54:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:54:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:54:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:54:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:54:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:54:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:54:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:54:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:54:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:54:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:54:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:54:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:54:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:54:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:54:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:54:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:54:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:54:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:54:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:54:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:54:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:54:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:54:22,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:54:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:54:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:54:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:22,274 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2022-02-15 03:54:22,274 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:22,274 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [85505213] [2022-02-15 03:54:22,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [85505213] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:22,274 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:22,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2022-02-15 03:54:22,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3206081] [2022-02-15 03:54:22,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:22,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-02-15 03:54:22,275 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:22,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-02-15 03:54:22,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=2028, Unknown=0, NotChecked=0, Total=2162 [2022-02-15 03:54:22,276 INFO L87 Difference]: Start difference. First operand 194 states and 237 transitions. Second operand has 47 states, 47 states have (on average 3.0) internal successors, (141), 46 states have internal predecessors, (141), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-15 03:54:29,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:29,419 INFO L93 Difference]: Finished difference Result 388 states and 478 transitions. [2022-02-15 03:54:29,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-15 03:54:29,420 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 3.0) internal successors, (141), 46 states have internal predecessors, (141), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 357 [2022-02-15 03:54:29,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:29,421 INFO L225 Difference]: With dead ends: 388 [2022-02-15 03:54:29,421 INFO L226 Difference]: Without dead ends: 377 [2022-02-15 03:54:29,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 947 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=396, Invalid=7794, Unknown=0, NotChecked=0, Total=8190 [2022-02-15 03:54:29,422 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 417 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 16872 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 17362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 16872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:29,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [419 Valid, 247 Invalid, 17362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 16872 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-02-15 03:54:29,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-02-15 03:54:29,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 198. [2022-02-15 03:54:29,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 147 states have (on average 1.0136054421768708) internal successors, (149), 147 states have internal predecessors, (149), 47 states have call successors, (47), 4 states have call predecessors, (47), 3 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-15 03:54:29,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 242 transitions. [2022-02-15 03:54:29,494 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 242 transitions. Word has length 357 [2022-02-15 03:54:29,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:29,495 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 242 transitions. [2022-02-15 03:54:29,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.0) internal successors, (141), 46 states have internal predecessors, (141), 45 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-02-15 03:54:29,495 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 242 transitions. [2022-02-15 03:54:29,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-02-15 03:54:29,496 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:29,496 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:29,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-02-15 03:54:29,496 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:29,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:29,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1343784109, now seen corresponding path program 44 times [2022-02-15 03:54:29,497 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:29,497 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [698490246] [2022-02-15 03:54:29,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:29,499 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:29,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:29,501 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:54:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:54:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:54:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:54:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:54:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:54:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:54:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:54:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:54:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:54:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:54:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:54:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:54:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:54:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:54:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:54:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:54:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:54:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:54:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:54:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:54:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:54:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:54:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:54:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:54:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:54:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:54:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:54:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:54:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:54:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:54:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:54:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:54:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:54:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:54:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:54:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:54:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:54:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:54:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:54:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:54:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:54:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:54:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:54:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:30,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3784 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2022-02-15 03:54:30,486 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:30,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [698490246] [2022-02-15 03:54:30,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [698490246] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:30,486 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:30,486 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-02-15 03:54:30,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845370520] [2022-02-15 03:54:30,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:30,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-15 03:54:30,487 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:30,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-15 03:54:30,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=2119, Unknown=0, NotChecked=0, Total=2256 [2022-02-15 03:54:30,487 INFO L87 Difference]: Start difference. First operand 198 states and 242 transitions. Second operand has 48 states, 48 states have (on average 3.0) internal successors, (144), 47 states have internal predecessors, (144), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-15 03:54:37,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:37,986 INFO L93 Difference]: Finished difference Result 396 states and 488 transitions. [2022-02-15 03:54:37,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-15 03:54:37,986 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.0) internal successors, (144), 47 states have internal predecessors, (144), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Word has length 365 [2022-02-15 03:54:37,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:37,988 INFO L225 Difference]: With dead ends: 396 [2022-02-15 03:54:37,988 INFO L226 Difference]: Without dead ends: 385 [2022-02-15 03:54:37,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=405, Invalid=8151, Unknown=0, NotChecked=0, Total=8556 [2022-02-15 03:54:37,989 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 425 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 17710 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 18210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 17710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:37,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 255 Invalid, 18210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 17710 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-02-15 03:54:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2022-02-15 03:54:38,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 202. [2022-02-15 03:54:38,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 150 states have (on average 1.0133333333333334) internal successors, (152), 150 states have internal predecessors, (152), 48 states have call successors, (48), 4 states have call predecessors, (48), 3 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-15 03:54:38,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 247 transitions. [2022-02-15 03:54:38,061 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 247 transitions. Word has length 365 [2022-02-15 03:54:38,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:38,061 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 247 transitions. [2022-02-15 03:54:38,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.0) internal successors, (144), 47 states have internal predecessors, (144), 46 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2022-02-15 03:54:38,062 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 247 transitions. [2022-02-15 03:54:38,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2022-02-15 03:54:38,063 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:38,063 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:38,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-02-15 03:54:38,063 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:38,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:38,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1815885816, now seen corresponding path program 45 times [2022-02-15 03:54:38,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:38,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846539250] [2022-02-15 03:54:38,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:38,068 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:38,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:38,070 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:54:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:54:39,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:54:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:54:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:54:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:54:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:54:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:54:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:54:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:54:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:54:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:54:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:54:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:54:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:54:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:54:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:54:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:54:39,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:54:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:54:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:54:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:54:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:54:39,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:54:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:54:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:54:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:54:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:54:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:54:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:54:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:54:39,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:54:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:54:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:54:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:54:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:54:39,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:54:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:54:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:54:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:54:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:54:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:54:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:54:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:54:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:54:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:39,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3960 trivial. 0 not checked. [2022-02-15 03:54:39,089 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:39,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846539250] [2022-02-15 03:54:39,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1846539250] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:39,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:39,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2022-02-15 03:54:39,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672246796] [2022-02-15 03:54:39,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:39,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-02-15 03:54:39,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:39,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-02-15 03:54:39,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=2212, Unknown=0, NotChecked=0, Total=2352 [2022-02-15 03:54:39,091 INFO L87 Difference]: Start difference. First operand 202 states and 247 transitions. Second operand has 49 states, 49 states have (on average 3.0) internal successors, (147), 48 states have internal predecessors, (147), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-15 03:54:47,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:47,356 INFO L93 Difference]: Finished difference Result 404 states and 498 transitions. [2022-02-15 03:54:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-15 03:54:47,357 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.0) internal successors, (147), 48 states have internal predecessors, (147), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 373 [2022-02-15 03:54:47,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:47,358 INFO L225 Difference]: With dead ends: 404 [2022-02-15 03:54:47,358 INFO L226 Difference]: Without dead ends: 393 [2022-02-15 03:54:47,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1036 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=414, Invalid=8516, Unknown=0, NotChecked=0, Total=8930 [2022-02-15 03:54:47,359 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 401 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 20184 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 20662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 20184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:47,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [403 Valid, 343 Invalid, 20662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 20184 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-02-15 03:54:47,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2022-02-15 03:54:47,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 206. [2022-02-15 03:54:47,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 153 states have (on average 1.0130718954248366) internal successors, (155), 153 states have internal predecessors, (155), 49 states have call successors, (49), 4 states have call predecessors, (49), 3 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-15 03:54:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 252 transitions. [2022-02-15 03:54:47,439 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 252 transitions. Word has length 373 [2022-02-15 03:54:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:47,439 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 252 transitions. [2022-02-15 03:54:47,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.0) internal successors, (147), 48 states have internal predecessors, (147), 47 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2022-02-15 03:54:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 252 transitions. [2022-02-15 03:54:47,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2022-02-15 03:54:47,441 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:47,441 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:47,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-02-15 03:54:47,441 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:47,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:47,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1714454429, now seen corresponding path program 46 times [2022-02-15 03:54:47,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:47,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [730099063] [2022-02-15 03:54:47,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:47,446 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:47,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:47,448 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:48,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:54:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:54:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:54:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:54:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:54:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:54:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:54:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:54:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:54:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:54:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:54:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:54:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:54:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:54:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:54:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:54:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:54:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:54:48,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:54:48,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:54:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:54:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:54:48,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:54:48,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:54:48,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:54:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:54:48,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:54:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:54:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:54:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:54:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:54:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:54:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:54:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:54:48,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:54:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:54:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:54:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:54:48,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:54:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:54:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:54:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:54:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:54:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:54:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:54:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:54:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:48,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2022-02-15 03:54:48,466 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:48,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [730099063] [2022-02-15 03:54:48,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [730099063] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:48,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:48,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-02-15 03:54:48,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223866517] [2022-02-15 03:54:48,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:48,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-15 03:54:48,467 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:48,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-15 03:54:48,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=2307, Unknown=0, NotChecked=0, Total=2450 [2022-02-15 03:54:48,467 INFO L87 Difference]: Start difference. First operand 206 states and 252 transitions. Second operand has 50 states, 50 states have (on average 3.0) internal successors, (150), 49 states have internal predecessors, (150), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-15 03:54:57,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:54:57,400 INFO L93 Difference]: Finished difference Result 412 states and 508 transitions. [2022-02-15 03:54:57,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-15 03:54:57,400 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 3.0) internal successors, (150), 49 states have internal predecessors, (150), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Word has length 381 [2022-02-15 03:54:57,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:54:57,402 INFO L225 Difference]: With dead ends: 412 [2022-02-15 03:54:57,402 INFO L226 Difference]: Without dead ends: 401 [2022-02-15 03:54:57,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=423, Invalid=8889, Unknown=0, NotChecked=0, Total=9312 [2022-02-15 03:54:57,403 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 399 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 21609 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 22087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 21609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:54:57,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 376 Invalid, 22087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 21609 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-02-15 03:54:57,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-02-15 03:54:57,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 210. [2022-02-15 03:54:57,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 156 states have (on average 1.0128205128205128) internal successors, (158), 156 states have internal predecessors, (158), 50 states have call successors, (50), 4 states have call predecessors, (50), 3 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-15 03:54:57,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 257 transitions. [2022-02-15 03:54:57,484 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 257 transitions. Word has length 381 [2022-02-15 03:54:57,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:54:57,485 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 257 transitions. [2022-02-15 03:54:57,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 3.0) internal successors, (150), 49 states have internal predecessors, (150), 48 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2022-02-15 03:54:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 257 transitions. [2022-02-15 03:54:57,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-02-15 03:54:57,486 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:54:57,486 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:54:57,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-02-15 03:54:57,487 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:54:57,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:54:57,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1224125886, now seen corresponding path program 47 times [2022-02-15 03:54:57,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:54:57,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1573369969] [2022-02-15 03:54:57,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:54:57,489 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:54:57,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:54:57,491 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:54:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:54:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:54:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:54:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:54:58,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:54:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:54:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:54:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:54:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:54:58,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:54:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:54:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:54:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:54:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:54:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:54:58,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:54:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:54:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:54:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:54:58,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:54:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:54:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:54:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:54:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:54:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:54:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:54:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:54:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:54:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:54:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:54:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:54:58,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:54:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:54:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:54:58,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:54:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:54:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:54:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:54:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:54:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:54:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:54:58,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:54:58,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:54:58,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:54:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:54:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:54:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:54:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:54:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:54:58,565 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2022-02-15 03:54:58,565 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:54:58,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1573369969] [2022-02-15 03:54:58,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1573369969] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:54:58,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:54:58,566 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2022-02-15 03:54:58,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236588634] [2022-02-15 03:54:58,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:54:58,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-15 03:54:58,567 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:54:58,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-15 03:54:58,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=2404, Unknown=0, NotChecked=0, Total=2550 [2022-02-15 03:54:58,567 INFO L87 Difference]: Start difference. First operand 210 states and 257 transitions. Second operand has 51 states, 51 states have (on average 3.0) internal successors, (153), 50 states have internal predecessors, (153), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-15 03:55:07,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:07,476 INFO L93 Difference]: Finished difference Result 420 states and 518 transitions. [2022-02-15 03:55:07,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-15 03:55:07,476 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 3.0) internal successors, (153), 50 states have internal predecessors, (153), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Word has length 389 [2022-02-15 03:55:07,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:07,478 INFO L225 Difference]: With dead ends: 420 [2022-02-15 03:55:07,478 INFO L226 Difference]: Without dead ends: 409 [2022-02-15 03:55:07,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=432, Invalid=9270, Unknown=0, NotChecked=0, Total=9702 [2022-02-15 03:55:07,479 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 441 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 20764 mSolverCounterSat, 522 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 21286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 522 IncrementalHoareTripleChecker+Valid, 20764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:07,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [443 Valid, 299 Invalid, 21286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [522 Valid, 20764 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-02-15 03:55:07,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-02-15 03:55:07,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 214. [2022-02-15 03:55:07,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 159 states have (on average 1.0125786163522013) internal successors, (161), 159 states have internal predecessors, (161), 51 states have call successors, (51), 4 states have call predecessors, (51), 3 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-15 03:55:07,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 262 transitions. [2022-02-15 03:55:07,562 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 262 transitions. Word has length 389 [2022-02-15 03:55:07,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:07,562 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 262 transitions. [2022-02-15 03:55:07,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.0) internal successors, (153), 50 states have internal predecessors, (153), 49 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2022-02-15 03:55:07,563 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 262 transitions. [2022-02-15 03:55:07,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2022-02-15 03:55:07,567 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:07,568 INFO L514 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:07,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-02-15 03:55:07,568 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:07,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:07,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1661710311, now seen corresponding path program 48 times [2022-02-15 03:55:07,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:07,568 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250645957] [2022-02-15 03:55:07,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:07,570 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:07,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:07,572 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:55:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:55:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:55:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:55:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:55:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:55:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:55:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:55:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:55:08,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:55:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:55:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:55:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:55:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:55:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:55:08,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:55:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:55:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:55:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:55:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:55:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:55:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:55:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:55:08,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:55:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:55:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:55:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:55:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:55:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:55:08,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:55:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:55:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:55:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:55:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:55:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:55:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:55:08,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:55:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:55:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:55:08,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:55:08,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:55:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:55:08,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:55:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:55:08,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:55:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:55:08,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:55:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:55:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2022-02-15 03:55:08,700 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:08,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250645957] [2022-02-15 03:55:08,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [250645957] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:08,700 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:08,700 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-02-15 03:55:08,700 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119756375] [2022-02-15 03:55:08,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:08,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-02-15 03:55:08,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:08,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-02-15 03:55:08,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=2503, Unknown=0, NotChecked=0, Total=2652 [2022-02-15 03:55:08,701 INFO L87 Difference]: Start difference. First operand 214 states and 262 transitions. Second operand has 52 states, 52 states have (on average 3.0) internal successors, (156), 51 states have internal predecessors, (156), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-15 03:55:18,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:18,537 INFO L93 Difference]: Finished difference Result 428 states and 528 transitions. [2022-02-15 03:55:18,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-15 03:55:18,538 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 3.0) internal successors, (156), 51 states have internal predecessors, (156), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) Word has length 397 [2022-02-15 03:55:18,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:18,540 INFO L225 Difference]: With dead ends: 428 [2022-02-15 03:55:18,540 INFO L226 Difference]: Without dead ends: 417 [2022-02-15 03:55:18,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=441, Invalid=9659, Unknown=0, NotChecked=0, Total=10100 [2022-02-15 03:55:18,541 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 411 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 23723 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 24217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 23723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:18,541 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 402 Invalid, 24217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 23723 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-02-15 03:55:18,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-02-15 03:55:18,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 218. [2022-02-15 03:55:18,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 162 states have (on average 1.0123456790123457) internal successors, (164), 162 states have internal predecessors, (164), 52 states have call successors, (52), 4 states have call predecessors, (52), 3 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-15 03:55:18,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 267 transitions. [2022-02-15 03:55:18,632 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 267 transitions. Word has length 397 [2022-02-15 03:55:18,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:18,633 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 267 transitions. [2022-02-15 03:55:18,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 3.0) internal successors, (156), 51 states have internal predecessors, (156), 50 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2022-02-15 03:55:18,633 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 267 transitions. [2022-02-15 03:55:18,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-02-15 03:55:18,634 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:18,634 INFO L514 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:18,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-02-15 03:55:18,635 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:18,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:18,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1501337740, now seen corresponding path program 49 times [2022-02-15 03:55:18,635 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:18,635 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22372526] [2022-02-15 03:55:18,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:18,637 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:18,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:18,639 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:19,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:55:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:55:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:55:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:55:19,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:55:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:55:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:55:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:55:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:55:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:55:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:55:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:55:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:55:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:55:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:55:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:55:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:55:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:55:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:55:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:55:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:55:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:55:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:55:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:55:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:55:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:55:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:55:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:55:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:55:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:55:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:55:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:55:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:55:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:55:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:55:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:55:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:55:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:55:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:55:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:55:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:55:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:55:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:55:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:55:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:55:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:55:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:55:19,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:55:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:55:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:19,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4704 trivial. 0 not checked. [2022-02-15 03:55:19,758 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:19,758 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22372526] [2022-02-15 03:55:19,758 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [22372526] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:19,758 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:19,758 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2022-02-15 03:55:19,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724542278] [2022-02-15 03:55:19,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:19,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-02-15 03:55:19,758 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:19,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-02-15 03:55:19,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=2604, Unknown=0, NotChecked=0, Total=2756 [2022-02-15 03:55:19,759 INFO L87 Difference]: Start difference. First operand 218 states and 267 transitions. Second operand has 53 states, 53 states have (on average 3.0) internal successors, (159), 52 states have internal predecessors, (159), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-15 03:55:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:29,375 INFO L93 Difference]: Finished difference Result 436 states and 538 transitions. [2022-02-15 03:55:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-15 03:55:29,375 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.0) internal successors, (159), 52 states have internal predecessors, (159), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Word has length 405 [2022-02-15 03:55:29,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:29,377 INFO L225 Difference]: With dead ends: 436 [2022-02-15 03:55:29,377 INFO L226 Difference]: Without dead ends: 425 [2022-02-15 03:55:29,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1226 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=450, Invalid=10056, Unknown=0, NotChecked=0, Total=10506 [2022-02-15 03:55:29,378 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 459 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 22527 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 23071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 22527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:29,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 310 Invalid, 23071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 22527 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-02-15 03:55:29,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-02-15 03:55:29,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 222. [2022-02-15 03:55:29,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 165 states have (on average 1.0121212121212122) internal successors, (167), 165 states have internal predecessors, (167), 53 states have call successors, (53), 4 states have call predecessors, (53), 3 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-15 03:55:29,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 272 transitions. [2022-02-15 03:55:29,467 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 272 transitions. Word has length 405 [2022-02-15 03:55:29,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:29,468 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 272 transitions. [2022-02-15 03:55:29,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.0) internal successors, (159), 52 states have internal predecessors, (159), 51 states have call successors, (52), 3 states have call predecessors, (52), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2022-02-15 03:55:29,468 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 272 transitions. [2022-02-15 03:55:29,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-02-15 03:55:29,469 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:29,469 INFO L514 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:29,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-02-15 03:55:29,470 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:29,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:29,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1956711473, now seen corresponding path program 50 times [2022-02-15 03:55:29,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:29,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803697481] [2022-02-15 03:55:29,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:29,472 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:29,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:29,474 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:29,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:55:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:55:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:55:30,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:55:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:55:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:55:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:55:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:55:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:55:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:55:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:55:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:55:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:55:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:55:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:55:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:55:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:55:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:55:30,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:55:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:55:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:55:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:55:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:55:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:55:30,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:55:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:55:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:55:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:55:30,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:55:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:55:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:55:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:55:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:55:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:55:30,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:55:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:55:30,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:55:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:55:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:55:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:55:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:55:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:55:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:55:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:55:30,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:55:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:55:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:55:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:55:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:55:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:55:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4900 trivial. 0 not checked. [2022-02-15 03:55:30,743 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:30,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803697481] [2022-02-15 03:55:30,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1803697481] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:30,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:30,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2022-02-15 03:55:30,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792358079] [2022-02-15 03:55:30,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:30,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-15 03:55:30,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:30,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-15 03:55:30,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=2707, Unknown=0, NotChecked=0, Total=2862 [2022-02-15 03:55:30,745 INFO L87 Difference]: Start difference. First operand 222 states and 272 transitions. Second operand has 54 states, 54 states have (on average 3.0) internal successors, (162), 53 states have internal predecessors, (162), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-15 03:55:40,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:40,008 INFO L93 Difference]: Finished difference Result 444 states and 548 transitions. [2022-02-15 03:55:40,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-15 03:55:40,008 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 3.0) internal successors, (162), 53 states have internal predecessors, (162), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Word has length 413 [2022-02-15 03:55:40,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:40,010 INFO L225 Difference]: With dead ends: 444 [2022-02-15 03:55:40,010 INFO L226 Difference]: Without dead ends: 433 [2022-02-15 03:55:40,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1276 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=459, Invalid=10461, Unknown=0, NotChecked=0, Total=10920 [2022-02-15 03:55:40,011 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 509 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 21160 mSolverCounterSat, 596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 21756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 21160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:40,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [511 Valid, 213 Invalid, 21756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [596 Valid, 21160 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-02-15 03:55:40,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2022-02-15 03:55:40,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 226. [2022-02-15 03:55:40,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 168 states have (on average 1.0119047619047619) internal successors, (170), 168 states have internal predecessors, (170), 54 states have call successors, (54), 4 states have call predecessors, (54), 3 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-15 03:55:40,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 277 transitions. [2022-02-15 03:55:40,111 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 277 transitions. Word has length 413 [2022-02-15 03:55:40,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:40,111 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 277 transitions. [2022-02-15 03:55:40,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 3.0) internal successors, (162), 53 states have internal predecessors, (162), 52 states have call successors, (53), 3 states have call predecessors, (53), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2022-02-15 03:55:40,111 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 277 transitions. [2022-02-15 03:55:40,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-02-15 03:55:40,113 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:40,113 INFO L514 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:40,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-02-15 03:55:40,113 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:40,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:40,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2042497750, now seen corresponding path program 51 times [2022-02-15 03:55:40,114 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:40,114 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063643990] [2022-02-15 03:55:40,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:40,115 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:40,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:40,118 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:55:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:55:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:55:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:55:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:55:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:55:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:55:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:55:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:55:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:55:41,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:55:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:55:41,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:55:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:55:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:55:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:55:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:55:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:55:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:55:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:55:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:55:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:55:41,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:55:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:55:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:55:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:55:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:55:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:55:41,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:55:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:55:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:55:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:55:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:55:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:55:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:55:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:55:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:55:41,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:55:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:55:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:55:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:55:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:55:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:55:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:55:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:55:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:55:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:55:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:55:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:55:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:55:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:55:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:41,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2022-02-15 03:55:41,334 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:41,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063643990] [2022-02-15 03:55:41,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1063643990] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:41,334 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:41,334 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2022-02-15 03:55:41,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580117599] [2022-02-15 03:55:41,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:41,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-02-15 03:55:41,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:41,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-02-15 03:55:41,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=2812, Unknown=0, NotChecked=0, Total=2970 [2022-02-15 03:55:41,336 INFO L87 Difference]: Start difference. First operand 226 states and 277 transitions. Second operand has 55 states, 55 states have (on average 3.0) internal successors, (165), 54 states have internal predecessors, (165), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-15 03:55:52,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:55:52,122 INFO L93 Difference]: Finished difference Result 452 states and 558 transitions. [2022-02-15 03:55:52,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-15 03:55:52,123 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 3.0) internal successors, (165), 54 states have internal predecessors, (165), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) Word has length 421 [2022-02-15 03:55:52,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:55:52,124 INFO L225 Difference]: With dead ends: 452 [2022-02-15 03:55:52,124 INFO L226 Difference]: Without dead ends: 441 [2022-02-15 03:55:52,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1327 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=468, Invalid=10874, Unknown=0, NotChecked=0, Total=11342 [2022-02-15 03:55:52,125 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 451 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 25831 mSolverCounterSat, 540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 26371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 540 IncrementalHoareTripleChecker+Valid, 25831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:55:52,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [453 Valid, 386 Invalid, 26371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [540 Valid, 25831 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-02-15 03:55:52,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-02-15 03:55:52,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 230. [2022-02-15 03:55:52,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 171 states have (on average 1.0116959064327486) internal successors, (173), 171 states have internal predecessors, (173), 55 states have call successors, (55), 4 states have call predecessors, (55), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-15 03:55:52,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 282 transitions. [2022-02-15 03:55:52,222 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 282 transitions. Word has length 421 [2022-02-15 03:55:52,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:55:52,222 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 282 transitions. [2022-02-15 03:55:52,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 3.0) internal successors, (165), 54 states have internal predecessors, (165), 53 states have call successors, (54), 3 states have call predecessors, (54), 1 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2022-02-15 03:55:52,222 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 282 transitions. [2022-02-15 03:55:52,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-02-15 03:55:52,224 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:55:52,224 INFO L514 BasicCegarLoop]: trace histogram [52, 52, 52, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:55:52,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-02-15 03:55:52,224 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:55:52,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:55:52,224 INFO L85 PathProgramCache]: Analyzing trace with hash -421041275, now seen corresponding path program 52 times [2022-02-15 03:55:52,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:55:52,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259349119] [2022-02-15 03:55:52,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:55:52,229 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:55:52,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:55:52,232 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:55:52,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:55:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:55:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:55:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:55:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:55:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:55:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:55:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:55:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:55:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:55:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:55:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:55:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:55:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:55:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:55:53,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:55:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:55:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:55:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:55:53,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:55:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:55:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:55:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:55:53,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:55:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:55:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:55:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:55:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:55:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:55:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:55:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:55:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:55:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:55:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:55:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:55:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:55:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:55:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:55:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:55:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:55:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:55:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:55:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:55:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:55:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:55:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:55:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:55:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:55:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:55:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:55:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:55:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:55:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:55:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:55:53,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5304 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5304 trivial. 0 not checked. [2022-02-15 03:55:53,467 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:55:53,467 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259349119] [2022-02-15 03:55:53,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [259349119] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:55:53,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:55:53,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2022-02-15 03:55:53,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38428537] [2022-02-15 03:55:53,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:55:53,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-15 03:55:53,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:55:53,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-15 03:55:53,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=2919, Unknown=0, NotChecked=0, Total=3080 [2022-02-15 03:55:53,469 INFO L87 Difference]: Start difference. First operand 230 states and 282 transitions. Second operand has 56 states, 56 states have (on average 3.0) internal successors, (168), 55 states have internal predecessors, (168), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-15 03:56:04,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:04,010 INFO L93 Difference]: Finished difference Result 460 states and 568 transitions. [2022-02-15 03:56:04,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-02-15 03:56:04,010 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 3.0) internal successors, (168), 55 states have internal predecessors, (168), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Word has length 429 [2022-02-15 03:56:04,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:04,012 INFO L225 Difference]: With dead ends: 460 [2022-02-15 03:56:04,012 INFO L226 Difference]: Without dead ends: 449 [2022-02-15 03:56:04,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1379 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=477, Invalid=11295, Unknown=0, NotChecked=0, Total=11772 [2022-02-15 03:56:04,013 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 497 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 24674 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 25262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 24674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:04,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 299 Invalid, 25262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 24674 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-02-15 03:56:04,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-02-15 03:56:04,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 234. [2022-02-15 03:56:04,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 174 states have (on average 1.0114942528735633) internal successors, (176), 174 states have internal predecessors, (176), 56 states have call successors, (56), 4 states have call predecessors, (56), 3 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-15 03:56:04,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 287 transitions. [2022-02-15 03:56:04,118 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 287 transitions. Word has length 429 [2022-02-15 03:56:04,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:04,119 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 287 transitions. [2022-02-15 03:56:04,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 3.0) internal successors, (168), 55 states have internal predecessors, (168), 54 states have call successors, (55), 3 states have call predecessors, (55), 1 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2022-02-15 03:56:04,119 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 287 transitions. [2022-02-15 03:56:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2022-02-15 03:56:04,120 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:04,120 INFO L514 BasicCegarLoop]: trace histogram [53, 53, 53, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:04,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-02-15 03:56:04,121 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:04,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:04,121 INFO L85 PathProgramCache]: Analyzing trace with hash 302667488, now seen corresponding path program 53 times [2022-02-15 03:56:04,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:04,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071288603] [2022-02-15 03:56:04,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:04,124 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:04,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:04,127 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:56:05,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:56:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:56:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:56:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:56:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:56:05,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:56:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:56:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:56:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:56:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:56:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:56:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:56:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:56:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:56:05,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:56:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:56:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:56:05,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:56:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:56:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:56:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:56:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:56:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:56:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:56:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:56:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:56:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:56:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:56:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:56:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:56:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:56:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:56:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:56:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:56:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:56:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:56:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:56:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:56:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:56:05,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:56:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:56:05,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:56:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:56:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:56:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:56:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:56:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:56:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:56:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:56:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:56:05,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:56:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:56:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:05,557 INFO L134 CoverageAnalysis]: Checked inductivity of 5512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5512 trivial. 0 not checked. [2022-02-15 03:56:05,557 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:05,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071288603] [2022-02-15 03:56:05,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1071288603] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:05,557 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:05,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2022-02-15 03:56:05,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046036020] [2022-02-15 03:56:05,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:05,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-02-15 03:56:05,558 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:05,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-02-15 03:56:05,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=3028, Unknown=0, NotChecked=0, Total=3192 [2022-02-15 03:56:05,558 INFO L87 Difference]: Start difference. First operand 234 states and 287 transitions. Second operand has 57 states, 57 states have (on average 3.0) internal successors, (171), 56 states have internal predecessors, (171), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-15 03:56:15,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:15,757 INFO L93 Difference]: Finished difference Result 468 states and 578 transitions. [2022-02-15 03:56:15,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-02-15 03:56:15,758 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 3.0) internal successors, (171), 56 states have internal predecessors, (171), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) Word has length 437 [2022-02-15 03:56:15,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:15,759 INFO L225 Difference]: With dead ends: 468 [2022-02-15 03:56:15,759 INFO L226 Difference]: Without dead ends: 457 [2022-02-15 03:56:15,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1432 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=486, Invalid=11724, Unknown=0, NotChecked=0, Total=12210 [2022-02-15 03:56:15,760 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 549 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 23110 mSolverCounterSat, 642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 23752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 23110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:15,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 197 Invalid, 23752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 23110 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-02-15 03:56:15,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2022-02-15 03:56:15,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 238. [2022-02-15 03:56:15,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 177 states have (on average 1.0112994350282485) internal successors, (179), 177 states have internal predecessors, (179), 57 states have call successors, (57), 4 states have call predecessors, (57), 3 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-15 03:56:15,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 292 transitions. [2022-02-15 03:56:15,867 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 292 transitions. Word has length 437 [2022-02-15 03:56:15,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:15,868 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 292 transitions. [2022-02-15 03:56:15,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 3.0) internal successors, (171), 56 states have internal predecessors, (171), 55 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2022-02-15 03:56:15,868 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 292 transitions. [2022-02-15 03:56:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-02-15 03:56:15,869 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:15,870 INFO L514 BasicCegarLoop]: trace histogram [54, 54, 54, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:15,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-02-15 03:56:15,870 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:15,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:15,870 INFO L85 PathProgramCache]: Analyzing trace with hash -2124040389, now seen corresponding path program 54 times [2022-02-15 03:56:15,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:15,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1999806739] [2022-02-15 03:56:15,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:15,872 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:15,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:15,874 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:56:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:56:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:56:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:56:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:56:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:56:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:56:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:56:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:56:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:56:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:56:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:56:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:56:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:56:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:56:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:56:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:56:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:56:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:56:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:56:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:56:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:56:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:56:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:56:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:56:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:56:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:56:17,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:56:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:56:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:56:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:56:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:56:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:56:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:56:17,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:56:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:56:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:56:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:56:17,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:56:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:56:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:56:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:56:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:56:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:56:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:56:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:56:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:56:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:56:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:56:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:56:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:56:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:56:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:56:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:56:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:17,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5724 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5724 trivial. 0 not checked. [2022-02-15 03:56:17,165 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:17,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1999806739] [2022-02-15 03:56:17,165 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1999806739] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:17,165 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:17,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2022-02-15 03:56:17,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151397126] [2022-02-15 03:56:17,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:17,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-02-15 03:56:17,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:17,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-02-15 03:56:17,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=3139, Unknown=0, NotChecked=0, Total=3306 [2022-02-15 03:56:17,166 INFO L87 Difference]: Start difference. First operand 238 states and 292 transitions. Second operand has 58 states, 58 states have (on average 3.0) internal successors, (174), 57 states have internal predecessors, (174), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-15 03:56:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:29,362 INFO L93 Difference]: Finished difference Result 476 states and 588 transitions. [2022-02-15 03:56:29,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-15 03:56:29,362 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 3.0) internal successors, (174), 57 states have internal predecessors, (174), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Word has length 445 [2022-02-15 03:56:29,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:29,364 INFO L225 Difference]: With dead ends: 476 [2022-02-15 03:56:29,364 INFO L226 Difference]: Without dead ends: 465 [2022-02-15 03:56:29,365 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1486 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=495, Invalid=12161, Unknown=0, NotChecked=0, Total=12656 [2022-02-15 03:56:29,365 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 465 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 29570 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 30130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 29570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:29,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [467 Valid, 435 Invalid, 30130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 29570 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-02-15 03:56:29,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-02-15 03:56:29,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 242. [2022-02-15 03:56:29,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 180 states have (on average 1.011111111111111) internal successors, (182), 180 states have internal predecessors, (182), 58 states have call successors, (58), 4 states have call predecessors, (58), 3 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-15 03:56:29,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 297 transitions. [2022-02-15 03:56:29,476 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 297 transitions. Word has length 445 [2022-02-15 03:56:29,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:29,477 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 297 transitions. [2022-02-15 03:56:29,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 3.0) internal successors, (174), 57 states have internal predecessors, (174), 56 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-02-15 03:56:29,477 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 297 transitions. [2022-02-15 03:56:29,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2022-02-15 03:56:29,478 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:29,479 INFO L514 BasicCegarLoop]: trace histogram [55, 55, 55, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:29,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-02-15 03:56:29,479 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:29,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:29,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1011577706, now seen corresponding path program 55 times [2022-02-15 03:56:29,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:29,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1317646837] [2022-02-15 03:56:29,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:29,481 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:29,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:29,483 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:56:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:56:30,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:56:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:56:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:56:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:56:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:56:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:56:30,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:56:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:56:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:56:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:56:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:56:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:56:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:56:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:56:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:56:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:56:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:56:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:56:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:56:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:56:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:56:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:56:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:56:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:56:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:56:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:56:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:56:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:56:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:56:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:56:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:56:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:56:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:56:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:56:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:56:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:56:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:56:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:56:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:56:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:56:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:56:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:56:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:56:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:56:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:56:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:56:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:56:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:56:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:56:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:56:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:56:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:56:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:56:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:30,841 INFO L134 CoverageAnalysis]: Checked inductivity of 5940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5940 trivial. 0 not checked. [2022-02-15 03:56:30,841 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:30,841 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1317646837] [2022-02-15 03:56:30,841 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1317646837] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:30,841 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:30,842 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [] total 59 [2022-02-15 03:56:30,842 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5518740] [2022-02-15 03:56:30,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:30,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-02-15 03:56:30,842 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:30,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-02-15 03:56:30,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=3252, Unknown=0, NotChecked=0, Total=3422 [2022-02-15 03:56:30,843 INFO L87 Difference]: Start difference. First operand 242 states and 297 transitions. Second operand has 59 states, 59 states have (on average 3.0) internal successors, (177), 58 states have internal predecessors, (177), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-15 03:56:43,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:43,624 INFO L93 Difference]: Finished difference Result 484 states and 598 transitions. [2022-02-15 03:56:43,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-02-15 03:56:43,625 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 3.0) internal successors, (177), 58 states have internal predecessors, (177), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) Word has length 453 [2022-02-15 03:56:43,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:43,626 INFO L225 Difference]: With dead ends: 484 [2022-02-15 03:56:43,626 INFO L226 Difference]: Without dead ends: 473 [2022-02-15 03:56:43,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=504, Invalid=12606, Unknown=0, NotChecked=0, Total=13110 [2022-02-15 03:56:43,627 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 473 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 30668 mSolverCounterSat, 570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 31238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 570 IncrementalHoareTripleChecker+Valid, 30668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:43,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [475 Valid, 443 Invalid, 31238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [570 Valid, 30668 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-02-15 03:56:43,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2022-02-15 03:56:43,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 246. [2022-02-15 03:56:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 183 states have (on average 1.010928961748634) internal successors, (185), 183 states have internal predecessors, (185), 59 states have call successors, (59), 4 states have call predecessors, (59), 3 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-15 03:56:43,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 302 transitions. [2022-02-15 03:56:43,744 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 302 transitions. Word has length 453 [2022-02-15 03:56:43,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:43,745 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 302 transitions. [2022-02-15 03:56:43,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 3.0) internal successors, (177), 58 states have internal predecessors, (177), 57 states have call successors, (58), 3 states have call predecessors, (58), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2022-02-15 03:56:43,745 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 302 transitions. [2022-02-15 03:56:43,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-02-15 03:56:43,746 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:43,747 INFO L514 BasicCegarLoop]: trace histogram [56, 56, 56, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:43,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-02-15 03:56:43,747 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:43,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:43,747 INFO L85 PathProgramCache]: Analyzing trace with hash 2092029681, now seen corresponding path program 56 times [2022-02-15 03:56:43,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:43,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139395780] [2022-02-15 03:56:43,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:43,749 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:43,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:43,751 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:56:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:56:45,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:56:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:56:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:56:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:56:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:56:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:56:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:56:45,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:56:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:56:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:56:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:56:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:56:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:56:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:56:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:56:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:56:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:56:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:56:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:56:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:56:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:56:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:56:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:56:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:56:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:56:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:56:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:56:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:56:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:56:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:56:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:56:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:56:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:56:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:56:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:56:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:56:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:56:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:56:45,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:56:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:56:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:56:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:56:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:56:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:56:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:56:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:56:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:56:45,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:56:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:56:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:56:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:56:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:56:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:56:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:56:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:45,158 INFO L134 CoverageAnalysis]: Checked inductivity of 6160 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6160 trivial. 0 not checked. [2022-02-15 03:56:45,158 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:45,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139395780] [2022-02-15 03:56:45,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2139395780] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:45,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:45,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2022-02-15 03:56:45,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590463848] [2022-02-15 03:56:45,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:45,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-15 03:56:45,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:45,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-15 03:56:45,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=3367, Unknown=0, NotChecked=0, Total=3540 [2022-02-15 03:56:45,160 INFO L87 Difference]: Start difference. First operand 246 states and 302 transitions. Second operand has 60 states, 60 states have (on average 3.0) internal successors, (180), 59 states have internal predecessors, (180), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-15 03:56:56,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:56:56,894 INFO L93 Difference]: Finished difference Result 492 states and 608 transitions. [2022-02-15 03:56:56,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-15 03:56:56,895 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 3.0) internal successors, (180), 59 states have internal predecessors, (180), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Word has length 461 [2022-02-15 03:56:56,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:56:56,896 INFO L225 Difference]: With dead ends: 492 [2022-02-15 03:56:56,897 INFO L226 Difference]: Without dead ends: 481 [2022-02-15 03:56:56,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1597 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=513, Invalid=13059, Unknown=0, NotChecked=0, Total=13572 [2022-02-15 03:56:56,897 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 569 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 26374 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 27042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 26374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:56:56,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [571 Valid, 231 Invalid, 27042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 26374 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-02-15 03:56:56,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-02-15 03:56:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 250. [2022-02-15 03:56:57,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 186 states have (on average 1.010752688172043) internal successors, (188), 186 states have internal predecessors, (188), 60 states have call successors, (60), 4 states have call predecessors, (60), 3 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-15 03:56:57,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 307 transitions. [2022-02-15 03:56:57,018 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 307 transitions. Word has length 461 [2022-02-15 03:56:57,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:56:57,018 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 307 transitions. [2022-02-15 03:56:57,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.0) internal successors, (180), 59 states have internal predecessors, (180), 58 states have call successors, (59), 3 states have call predecessors, (59), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2022-02-15 03:56:57,019 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 307 transitions. [2022-02-15 03:56:57,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-02-15 03:56:57,020 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:56:57,020 INFO L514 BasicCegarLoop]: trace histogram [57, 57, 57, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:56:57,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-02-15 03:56:57,021 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:56:57,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:56:57,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1696110156, now seen corresponding path program 57 times [2022-02-15 03:56:57,021 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:56:57,021 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660776269] [2022-02-15 03:56:57,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:56:57,023 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:56:57,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:56:57,025 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:56:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:56:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:56:58,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:56:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:56:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:56:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:56:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:56:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:56:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:56:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:56:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:56:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:56:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:56:58,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:56:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:56:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:56:58,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:56:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:56:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:56:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:56:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:56:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:56:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:56:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:56:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:56:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:56:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:56:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:56:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:56:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:56:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:56:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:56:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:56:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:56:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:56:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:56:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:56:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:56:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:56:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:56:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:56:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:56:58,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:56:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:56:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:56:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:56:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:56:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:56:58,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:56:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:56:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:56:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:56:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:56:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:56:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:56:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:56:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:56:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 03:56:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:56:58,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2022-02-15 03:56:58,490 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:56:58,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [660776269] [2022-02-15 03:56:58,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [660776269] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:56:58,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:56:58,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [] total 61 [2022-02-15 03:56:58,491 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678079745] [2022-02-15 03:56:58,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:56:58,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-02-15 03:56:58,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:56:58,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-02-15 03:56:58,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=3484, Unknown=0, NotChecked=0, Total=3660 [2022-02-15 03:56:58,492 INFO L87 Difference]: Start difference. First operand 250 states and 307 transitions. Second operand has 61 states, 61 states have (on average 3.0) internal successors, (183), 60 states have internal predecessors, (183), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-15 03:57:10,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:10,401 INFO L93 Difference]: Finished difference Result 500 states and 618 transitions. [2022-02-15 03:57:10,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-15 03:57:10,401 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 3.0) internal successors, (183), 60 states have internal predecessors, (183), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Word has length 469 [2022-02-15 03:57:10,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:10,403 INFO L225 Difference]: With dead ends: 500 [2022-02-15 03:57:10,403 INFO L226 Difference]: Without dead ends: 489 [2022-02-15 03:57:10,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1654 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=522, Invalid=13520, Unknown=0, NotChecked=0, Total=14042 [2022-02-15 03:57:10,404 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 585 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 26924 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 27610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 26924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:10,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 219 Invalid, 27610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 26924 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-02-15 03:57:10,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2022-02-15 03:57:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 254. [2022-02-15 03:57:10,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 189 states have (on average 1.0105820105820107) internal successors, (191), 189 states have internal predecessors, (191), 61 states have call successors, (61), 4 states have call predecessors, (61), 3 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-15 03:57:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 312 transitions. [2022-02-15 03:57:10,525 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 312 transitions. Word has length 469 [2022-02-15 03:57:10,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:10,526 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 312 transitions. [2022-02-15 03:57:10,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 3.0) internal successors, (183), 60 states have internal predecessors, (183), 59 states have call successors, (60), 3 states have call predecessors, (60), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2022-02-15 03:57:10,526 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 312 transitions. [2022-02-15 03:57:10,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-02-15 03:57:10,528 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:10,528 INFO L514 BasicCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:10,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-02-15 03:57:10,528 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:10,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:10,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1252248231, now seen corresponding path program 58 times [2022-02-15 03:57:10,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:10,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272631982] [2022-02-15 03:57:10,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:10,530 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:10,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:10,532 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:57:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:57:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:57:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:57:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:57:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:57:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:57:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:57:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:57:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:57:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:57:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:57:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:57:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:57:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:57:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:57:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:57:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:57:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:57:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:57:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:57:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:57:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:57:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:57:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:57:11,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:57:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:57:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:57:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:57:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:57:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:57:11,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:57:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:57:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:57:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:57:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:57:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:57:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:57:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:57:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:57:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:57:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:57:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:57:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:57:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:57:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:57:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:57:11,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:57:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:57:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:57:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:57:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:57:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:57:11,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:57:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:57:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:57:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 03:57:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 03:57:11,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2022-02-15 03:57:11,978 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:11,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272631982] [2022-02-15 03:57:11,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [272631982] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:11,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:11,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-02-15 03:57:11,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446039515] [2022-02-15 03:57:11,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:11,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-02-15 03:57:11,979 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:11,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-02-15 03:57:11,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=3603, Unknown=0, NotChecked=0, Total=3782 [2022-02-15 03:57:11,980 INFO L87 Difference]: Start difference. First operand 254 states and 312 transitions. Second operand has 62 states, 62 states have (on average 3.0) internal successors, (186), 61 states have internal predecessors, (186), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-15 03:57:25,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:25,748 INFO L93 Difference]: Finished difference Result 508 states and 628 transitions. [2022-02-15 03:57:25,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-15 03:57:25,748 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 3.0) internal successors, (186), 61 states have internal predecessors, (186), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Word has length 477 [2022-02-15 03:57:25,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:25,750 INFO L225 Difference]: With dead ends: 508 [2022-02-15 03:57:25,750 INFO L226 Difference]: Without dead ends: 497 [2022-02-15 03:57:25,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1712 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=531, Invalid=13989, Unknown=0, NotChecked=0, Total=14520 [2022-02-15 03:57:25,751 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 521 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 32558 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 33182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 32558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:25,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 407 Invalid, 33182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 32558 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-02-15 03:57:25,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2022-02-15 03:57:25,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 258. [2022-02-15 03:57:25,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 192 states have (on average 1.0104166666666667) internal successors, (194), 192 states have internal predecessors, (194), 62 states have call successors, (62), 4 states have call predecessors, (62), 3 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-15 03:57:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 317 transitions. [2022-02-15 03:57:25,874 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 317 transitions. Word has length 477 [2022-02-15 03:57:25,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:25,874 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 317 transitions. [2022-02-15 03:57:25,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 3.0) internal successors, (186), 61 states have internal predecessors, (186), 60 states have call successors, (61), 3 states have call predecessors, (61), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2022-02-15 03:57:25,874 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 317 transitions. [2022-02-15 03:57:25,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2022-02-15 03:57:25,876 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:25,876 INFO L514 BasicCegarLoop]: trace histogram [59, 59, 59, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:25,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-02-15 03:57:25,876 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:25,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:25,876 INFO L85 PathProgramCache]: Analyzing trace with hash 269382658, now seen corresponding path program 59 times [2022-02-15 03:57:25,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:25,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832125385] [2022-02-15 03:57:25,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:25,878 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:25,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:25,880 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:27,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:57:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:57:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:57:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:57:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:57:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:57:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:57:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:57:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:57:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:57:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:57:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:57:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:57:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:57:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:57:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:57:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:57:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:57:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:57:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:57:27,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:57:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:57:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:57:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:57:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:57:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:57:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:57:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:57:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:57:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:57:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:57:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:57:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:57:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:57:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:57:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:57:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:57:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:57:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:57:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:57:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:57:27,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:57:27,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:57:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:57:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:57:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:57:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:57:27,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:57:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:57:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:57:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:57:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:57:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:57:27,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:57:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:57:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:57:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 03:57:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 03:57:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 03:57:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 6844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2022-02-15 03:57:27,403 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:27,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832125385] [2022-02-15 03:57:27,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1832125385] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:27,403 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:27,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2022-02-15 03:57:27,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601764683] [2022-02-15 03:57:27,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:27,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-02-15 03:57:27,404 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:27,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-02-15 03:57:27,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=3724, Unknown=0, NotChecked=0, Total=3906 [2022-02-15 03:57:27,405 INFO L87 Difference]: Start difference. First operand 258 states and 317 transitions. Second operand has 63 states, 63 states have (on average 3.0) internal successors, (189), 62 states have internal predecessors, (189), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-15 03:57:41,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:41,322 INFO L93 Difference]: Finished difference Result 516 states and 638 transitions. [2022-02-15 03:57:41,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-15 03:57:41,323 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 3.0) internal successors, (189), 62 states have internal predecessors, (189), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Word has length 485 [2022-02-15 03:57:41,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:41,324 INFO L225 Difference]: With dead ends: 516 [2022-02-15 03:57:41,325 INFO L226 Difference]: Without dead ends: 505 [2022-02-15 03:57:41,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1771 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=540, Invalid=14466, Unknown=0, NotChecked=0, Total=15006 [2022-02-15 03:57:41,326 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 549 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 32422 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 33076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 32422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:41,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 365 Invalid, 33076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 32422 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-02-15 03:57:41,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2022-02-15 03:57:41,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 262. [2022-02-15 03:57:41,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 195 states have (on average 1.0102564102564102) internal successors, (197), 195 states have internal predecessors, (197), 63 states have call successors, (63), 4 states have call predecessors, (63), 3 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-15 03:57:41,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 322 transitions. [2022-02-15 03:57:41,451 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 322 transitions. Word has length 485 [2022-02-15 03:57:41,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:41,451 INFO L470 AbstractCegarLoop]: Abstraction has 262 states and 322 transitions. [2022-02-15 03:57:41,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 3.0) internal successors, (189), 62 states have internal predecessors, (189), 61 states have call successors, (62), 3 states have call predecessors, (62), 1 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-02-15 03:57:41,451 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 322 transitions. [2022-02-15 03:57:41,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 494 [2022-02-15 03:57:41,453 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:41,453 INFO L514 BasicCegarLoop]: trace histogram [60, 60, 60, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:41,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-02-15 03:57:41,453 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:41,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:41,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1391226275, now seen corresponding path program 60 times [2022-02-15 03:57:41,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:41,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1123795100] [2022-02-15 03:57:41,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:41,455 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:41,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:41,458 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:57:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:57:42,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:57:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:57:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:57:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:57:42,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:57:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:57:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:57:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:57:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:57:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:57:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:57:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:57:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:57:42,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:57:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:57:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:57:42,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:57:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:57:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:57:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:57:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:57:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:57:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:57:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:57:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:57:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:57:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:57:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:57:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:57:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:57:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:57:42,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:57:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:57:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:57:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:57:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:57:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:57:42,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:57:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:57:42,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:57:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:57:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:57:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:57:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:57:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:57:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:57:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:57:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:57:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:57:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:57:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:57:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:57:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:57:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:57:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 03:57:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 03:57:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 03:57:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:42,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 03:57:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 7080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7080 trivial. 0 not checked. [2022-02-15 03:57:43,000 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:43,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1123795100] [2022-02-15 03:57:43,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1123795100] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:43,000 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:43,000 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2022-02-15 03:57:43,000 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239496329] [2022-02-15 03:57:43,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:43,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-02-15 03:57:43,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:43,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-02-15 03:57:43,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=3847, Unknown=0, NotChecked=0, Total=4032 [2022-02-15 03:57:43,002 INFO L87 Difference]: Start difference. First operand 262 states and 322 transitions. Second operand has 64 states, 64 states have (on average 3.0) internal successors, (192), 63 states have internal predecessors, (192), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-15 03:57:56,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:57:56,333 INFO L93 Difference]: Finished difference Result 524 states and 648 transitions. [2022-02-15 03:57:56,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-02-15 03:57:56,333 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 64 states have (on average 3.0) internal successors, (192), 63 states have internal predecessors, (192), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Word has length 493 [2022-02-15 03:57:56,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:57:56,335 INFO L225 Difference]: With dead ends: 524 [2022-02-15 03:57:56,335 INFO L226 Difference]: Without dead ends: 513 [2022-02-15 03:57:56,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1831 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=549, Invalid=14951, Unknown=0, NotChecked=0, Total=15500 [2022-02-15 03:57:56,336 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 615 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 29777 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 30499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 29777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:57:56,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [617 Valid, 228 Invalid, 30499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [722 Valid, 29777 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2022-02-15 03:57:56,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-02-15 03:57:56,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 266. [2022-02-15 03:57:56,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 198 states have (on average 1.0101010101010102) internal successors, (200), 198 states have internal predecessors, (200), 64 states have call successors, (64), 4 states have call predecessors, (64), 3 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-15 03:57:56,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 327 transitions. [2022-02-15 03:57:56,466 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 327 transitions. Word has length 493 [2022-02-15 03:57:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:57:56,466 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 327 transitions. [2022-02-15 03:57:56,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 3.0) internal successors, (192), 63 states have internal predecessors, (192), 62 states have call successors, (63), 3 states have call predecessors, (63), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-02-15 03:57:56,467 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 327 transitions. [2022-02-15 03:57:56,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2022-02-15 03:57:56,468 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:57:56,469 INFO L514 BasicCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:57:56,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-02-15 03:57:56,469 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:57:56,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:57:56,469 INFO L85 PathProgramCache]: Analyzing trace with hash 778970552, now seen corresponding path program 61 times [2022-02-15 03:57:56,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:57:56,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035810411] [2022-02-15 03:57:56,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:57:56,471 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:57:56,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:57:56,473 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:57:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:57:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:57:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:57:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:57:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:57:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:57:57,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:57:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:57:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:57:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:57:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:57:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:57:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:57:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:57:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:57:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:57:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:57:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:57:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:57:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:57:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:57:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:57:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:57:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:57:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:57:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:57:57,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:57:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:57:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:57:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:57:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:57:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:57:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:57:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:57:57,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:57:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:57,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:57:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:57:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:57:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:57:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:57:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:57:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:57:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:57:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:57:58,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:57:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:57:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:57:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:57:58,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:57:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:57:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:57:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:57:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:57:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:57:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:57:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:57:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:57:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 03:57:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 03:57:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 03:57:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 03:57:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 03:57:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:57:58,047 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2022-02-15 03:57:58,047 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:57:58,047 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035810411] [2022-02-15 03:57:58,047 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1035810411] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:57:58,047 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:57:58,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [65] imperfect sequences [] total 65 [2022-02-15 03:57:58,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800678129] [2022-02-15 03:57:58,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:57:58,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-02-15 03:57:58,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:57:58,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-02-15 03:57:58,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=3972, Unknown=0, NotChecked=0, Total=4160 [2022-02-15 03:57:58,049 INFO L87 Difference]: Start difference. First operand 266 states and 327 transitions. Second operand has 65 states, 65 states have (on average 3.0) internal successors, (195), 64 states have internal predecessors, (195), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-15 03:58:12,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:58:12,865 INFO L93 Difference]: Finished difference Result 532 states and 658 transitions. [2022-02-15 03:58:12,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-15 03:58:12,865 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 3.0) internal successors, (195), 64 states have internal predecessors, (195), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Word has length 501 [2022-02-15 03:58:12,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:58:12,867 INFO L225 Difference]: With dead ends: 532 [2022-02-15 03:58:12,867 INFO L226 Difference]: Without dead ends: 521 [2022-02-15 03:58:12,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1892 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=558, Invalid=15444, Unknown=0, NotChecked=0, Total=16002 [2022-02-15 03:58:12,868 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 581 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 33686 mSolverCounterSat, 690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 34376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 33686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:58:12,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [583 Valid, 341 Invalid, 34376 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [690 Valid, 33686 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-02-15 03:58:12,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2022-02-15 03:58:13,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 270. [2022-02-15 03:58:13,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 201 states have (on average 1.0099502487562189) internal successors, (203), 201 states have internal predecessors, (203), 65 states have call successors, (65), 4 states have call predecessors, (65), 3 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-02-15 03:58:13,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 332 transitions. [2022-02-15 03:58:13,007 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 332 transitions. Word has length 501 [2022-02-15 03:58:13,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:58:13,008 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 332 transitions. [2022-02-15 03:58:13,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 3.0) internal successors, (195), 64 states have internal predecessors, (195), 63 states have call successors, (64), 3 states have call predecessors, (64), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2022-02-15 03:58:13,008 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 332 transitions. [2022-02-15 03:58:13,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-02-15 03:58:13,010 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:58:13,010 INFO L514 BasicCegarLoop]: trace histogram [62, 62, 62, 62, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:58:13,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-02-15 03:58:13,010 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:58:13,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:58:13,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1244058093, now seen corresponding path program 62 times [2022-02-15 03:58:13,010 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:58:13,011 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719125589] [2022-02-15 03:58:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:58:13,012 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:58:13,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:58:13,015 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:58:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:58:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:58:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:58:14,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:58:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:58:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:58:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:58:14,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:58:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:58:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:58:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:58:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:58:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:58:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:58:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:58:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:58:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:58:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:58:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:58:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:58:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:58:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:58:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:58:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:58:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:58:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:58:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:58:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:58:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:58:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:58:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:58:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:58:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:58:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:58:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:58:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:58:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:58:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:58:14,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:58:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:58:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:58:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:58:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:58:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:58:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:58:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:58:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:58:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:58:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:58:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:58:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:58:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:58:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:58:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:58:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:58:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:58:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:58:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 03:58:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 03:58:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 03:58:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 03:58:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 03:58:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 03:58:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:14,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7564 trivial. 0 not checked. [2022-02-15 03:58:14,662 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:58:14,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719125589] [2022-02-15 03:58:14,662 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1719125589] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:58:14,662 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:58:14,662 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2022-02-15 03:58:14,662 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589330783] [2022-02-15 03:58:14,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:58:14,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-15 03:58:14,663 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:58:14,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-15 03:58:14,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=4099, Unknown=0, NotChecked=0, Total=4290 [2022-02-15 03:58:14,664 INFO L87 Difference]: Start difference. First operand 270 states and 332 transitions. Second operand has 66 states, 66 states have (on average 3.0) internal successors, (198), 65 states have internal predecessors, (198), 64 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-15 03:58:29,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:58:29,771 INFO L93 Difference]: Finished difference Result 540 states and 668 transitions. [2022-02-15 03:58:29,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-15 03:58:29,771 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 3.0) internal successors, (198), 65 states have internal predecessors, (198), 64 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Word has length 509 [2022-02-15 03:58:29,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:58:29,773 INFO L225 Difference]: With dead ends: 540 [2022-02-15 03:58:29,773 INFO L226 Difference]: Without dead ends: 529 [2022-02-15 03:58:29,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1954 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=567, Invalid=15945, Unknown=0, NotChecked=0, Total=16512 [2022-02-15 03:58:29,774 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 607 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 33649 mSolverCounterSat, 718 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 34367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 718 IncrementalHoareTripleChecker+Valid, 33649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:58:29,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 304 Invalid, 34367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [718 Valid, 33649 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-02-15 03:58:29,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2022-02-15 03:58:29,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 274. [2022-02-15 03:58:29,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 204 states have (on average 1.0098039215686274) internal successors, (206), 204 states have internal predecessors, (206), 66 states have call successors, (66), 4 states have call predecessors, (66), 3 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-02-15 03:58:29,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 337 transitions. [2022-02-15 03:58:29,918 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 337 transitions. Word has length 509 [2022-02-15 03:58:29,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:58:29,918 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 337 transitions. [2022-02-15 03:58:29,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 3.0) internal successors, (198), 65 states have internal predecessors, (198), 64 states have call successors, (65), 3 states have call predecessors, (65), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-02-15 03:58:29,919 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 337 transitions. [2022-02-15 03:58:29,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-02-15 03:58:29,920 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:58:29,921 INFO L514 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:58:29,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-02-15 03:58:29,921 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:58:29,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:58:29,921 INFO L85 PathProgramCache]: Analyzing trace with hash 2047847278, now seen corresponding path program 63 times [2022-02-15 03:58:29,921 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:58:29,921 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852091511] [2022-02-15 03:58:29,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:58:29,923 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:58:29,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:58:29,925 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:58:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:58:31,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:58:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:58:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:58:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:58:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:58:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:58:31,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:58:31,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:58:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:58:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:58:31,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:58:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:58:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:58:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:58:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:58:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:58:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:58:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:58:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:58:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:58:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:58:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:58:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:58:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:58:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:58:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:58:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:58:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:58:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:58:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:58:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:58:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:58:31,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:58:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:58:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:58:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:58:31,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:58:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:58:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:58:31,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:58:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:58:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:58:31,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:58:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:58:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:58:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:58:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:58:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:58:31,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:58:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:58:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:58:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:58:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:58:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:58:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:58:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:58:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 03:58:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 03:58:31,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 03:58:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 03:58:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 03:58:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 03:58:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 03:58:31,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2022-02-15 03:58:31,586 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:58:31,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852091511] [2022-02-15 03:58:31,587 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1852091511] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:58:31,587 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:58:31,587 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2022-02-15 03:58:31,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528487856] [2022-02-15 03:58:31,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:58:31,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-02-15 03:58:31,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:58:31,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-02-15 03:58:31,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=4228, Unknown=0, NotChecked=0, Total=4422 [2022-02-15 03:58:31,588 INFO L87 Difference]: Start difference. First operand 274 states and 337 transitions. Second operand has 67 states, 67 states have (on average 3.0) internal successors, (201), 66 states have internal predecessors, (201), 65 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-02-15 03:58:47,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:58:47,880 INFO L93 Difference]: Finished difference Result 548 states and 678 transitions. [2022-02-15 03:58:47,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-02-15 03:58:47,881 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.0) internal successors, (201), 66 states have internal predecessors, (201), 65 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Word has length 517 [2022-02-15 03:58:47,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:58:47,883 INFO L225 Difference]: With dead ends: 548 [2022-02-15 03:58:47,883 INFO L226 Difference]: Without dead ends: 537 [2022-02-15 03:58:47,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2017 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=576, Invalid=16454, Unknown=0, NotChecked=0, Total=17030 [2022-02-15 03:58:47,884 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 585 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 36884 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 37582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 36884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-02-15 03:58:47,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [587 Valid, 387 Invalid, 37582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [698 Valid, 36884 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2022-02-15 03:58:47,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-02-15 03:58:48,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 278. [2022-02-15 03:58:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 207 states have (on average 1.0096618357487923) internal successors, (209), 207 states have internal predecessors, (209), 67 states have call successors, (67), 4 states have call predecessors, (67), 3 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-02-15 03:58:48,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 342 transitions. [2022-02-15 03:58:48,035 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 342 transitions. Word has length 517 [2022-02-15 03:58:48,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:58:48,035 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 342 transitions. [2022-02-15 03:58:48,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.0) internal successors, (201), 66 states have internal predecessors, (201), 65 states have call successors, (66), 3 states have call predecessors, (66), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-02-15 03:58:48,035 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 342 transitions. [2022-02-15 03:58:48,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2022-02-15 03:58:48,037 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:58:48,037 INFO L514 BasicCegarLoop]: trace histogram [64, 64, 64, 64, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:58:48,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-02-15 03:58:48,037 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:58:48,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:58:48,038 INFO L85 PathProgramCache]: Analyzing trace with hash -959668791, now seen corresponding path program 64 times [2022-02-15 03:58:48,038 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:58:48,038 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678195590] [2022-02-15 03:58:48,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:58:48,040 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:58:48,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:58:48,042 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:58:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:58:49,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:58:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:58:49,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:58:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:58:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:58:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:58:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:58:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:58:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:58:49,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:58:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:58:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:58:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:58:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:58:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:58:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:58:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:58:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:58:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:58:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:58:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:58:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:58:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:58:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:58:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:58:49,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:58:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:58:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:58:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:58:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:58:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:58:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:58:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:58:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:58:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:58:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:58:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:58:49,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:58:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:58:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:58:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:58:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:58:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:58:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:58:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:58:49,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:58:49,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:58:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:58:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:58:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:58:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:58:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:58:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:58:49,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:58:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:58:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:58:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 03:58:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 03:58:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 03:58:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 03:58:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 03:58:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 03:58:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 03:58:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 03:58:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:58:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 8064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8064 trivial. 0 not checked. [2022-02-15 03:58:49,811 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:58:49,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678195590] [2022-02-15 03:58:49,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1678195590] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:58:49,811 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:58:49,811 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2022-02-15 03:58:49,811 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779950633] [2022-02-15 03:58:49,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:58:49,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-02-15 03:58:49,812 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:58:49,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-02-15 03:58:49,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=4359, Unknown=0, NotChecked=0, Total=4556 [2022-02-15 03:58:49,813 INFO L87 Difference]: Start difference. First operand 278 states and 342 transitions. Second operand has 68 states, 68 states have (on average 3.0) internal successors, (204), 67 states have internal predecessors, (204), 66 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-02-15 03:59:05,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:59:05,487 INFO L93 Difference]: Finished difference Result 556 states and 688 transitions. [2022-02-15 03:59:05,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-15 03:59:05,487 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 3.0) internal successors, (204), 67 states have internal predecessors, (204), 66 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Word has length 525 [2022-02-15 03:59:05,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:59:05,489 INFO L225 Difference]: With dead ends: 556 [2022-02-15 03:59:05,489 INFO L226 Difference]: Without dead ends: 545 [2022-02-15 03:59:05,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2081 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=585, Invalid=16971, Unknown=0, NotChecked=0, Total=17556 [2022-02-15 03:59:05,490 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 655 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 33805 mSolverCounterSat, 770 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 34575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 770 IncrementalHoareTripleChecker+Valid, 33805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-02-15 03:59:05,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [657 Valid, 240 Invalid, 34575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [770 Valid, 33805 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2022-02-15 03:59:05,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2022-02-15 03:59:05,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 282. [2022-02-15 03:59:05,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 210 states have (on average 1.0095238095238095) internal successors, (212), 210 states have internal predecessors, (212), 68 states have call successors, (68), 4 states have call predecessors, (68), 3 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-02-15 03:59:05,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 347 transitions. [2022-02-15 03:59:05,647 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 347 transitions. Word has length 525 [2022-02-15 03:59:05,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:59:05,647 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 347 transitions. [2022-02-15 03:59:05,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.0) internal successors, (204), 67 states have internal predecessors, (204), 66 states have call successors, (67), 3 states have call predecessors, (67), 1 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-02-15 03:59:05,647 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 347 transitions. [2022-02-15 03:59:05,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2022-02-15 03:59:05,649 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:59:05,649 INFO L514 BasicCegarLoop]: trace histogram [65, 65, 65, 65, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:59:05,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-02-15 03:59:05,649 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:59:05,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:59:05,650 INFO L85 PathProgramCache]: Analyzing trace with hash -53803740, now seen corresponding path program 65 times [2022-02-15 03:59:05,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:59:05,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511736803] [2022-02-15 03:59:05,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:59:05,651 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:59:05,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:59:05,654 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:59:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:59:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:59:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:59:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:59:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:59:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:59:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:59:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:59:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:59:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:59:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:59:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:59:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:59:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:59:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:59:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:59:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:59:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:59:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:59:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:59:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:59:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:59:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:59:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:59:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:59:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:59:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:59:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:59:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:59:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:59:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:59:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:59:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:59:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:59:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:59:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:59:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:59:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:59:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:59:07,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:59:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:59:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:59:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:59:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:59:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:59:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:59:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:59:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:59:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:59:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:59:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:59:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:59:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:59:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:59:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:59:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:59:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:59:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 03:59:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 03:59:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 03:59:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 03:59:07,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 03:59:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 03:59:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 03:59:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 03:59:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 03:59:07,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 8320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2022-02-15 03:59:07,437 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:59:07,437 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511736803] [2022-02-15 03:59:07,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1511736803] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:59:07,437 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:59:07,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2022-02-15 03:59:07,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125533244] [2022-02-15 03:59:07,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:59:07,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-02-15 03:59:07,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:59:07,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-02-15 03:59:07,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=4492, Unknown=0, NotChecked=0, Total=4692 [2022-02-15 03:59:07,438 INFO L87 Difference]: Start difference. First operand 282 states and 347 transitions. Second operand has 69 states, 69 states have (on average 3.0) internal successors, (207), 68 states have internal predecessors, (207), 67 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-02-15 03:59:25,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:59:25,407 INFO L93 Difference]: Finished difference Result 564 states and 698 transitions. [2022-02-15 03:59:25,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-02-15 03:59:25,408 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 69 states have (on average 3.0) internal successors, (207), 68 states have internal predecessors, (207), 67 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Word has length 533 [2022-02-15 03:59:25,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:59:25,409 INFO L225 Difference]: With dead ends: 564 [2022-02-15 03:59:25,409 INFO L226 Difference]: Without dead ends: 553 [2022-02-15 03:59:25,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2146 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=594, Invalid=17496, Unknown=0, NotChecked=0, Total=18090 [2022-02-15 03:59:25,411 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 571 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 41479 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 42167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 41479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-02-15 03:59:25,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [573 Valid, 478 Invalid, 42167 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [688 Valid, 41479 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-02-15 03:59:25,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-02-15 03:59:25,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 286. [2022-02-15 03:59:25,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 213 states have (on average 1.0093896713615023) internal successors, (215), 213 states have internal predecessors, (215), 69 states have call successors, (69), 4 states have call predecessors, (69), 3 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-02-15 03:59:25,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 352 transitions. [2022-02-15 03:59:25,567 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 352 transitions. Word has length 533 [2022-02-15 03:59:25,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:59:25,568 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 352 transitions. [2022-02-15 03:59:25,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 3.0) internal successors, (207), 68 states have internal predecessors, (207), 67 states have call successors, (68), 3 states have call predecessors, (68), 1 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2022-02-15 03:59:25,568 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 352 transitions. [2022-02-15 03:59:25,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2022-02-15 03:59:25,570 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:59:25,570 INFO L514 BasicCegarLoop]: trace histogram [66, 66, 66, 66, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:59:25,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-02-15 03:59:25,570 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:59:25,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:59:25,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1849302657, now seen corresponding path program 66 times [2022-02-15 03:59:25,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:59:25,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137200056] [2022-02-15 03:59:25,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:59:25,573 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:59:25,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:59:25,576 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:59:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:59:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:59:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:59:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:59:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:59:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:59:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:59:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:59:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:59:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:59:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:59:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:59:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:59:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:59:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:59:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:59:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:59:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:59:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:59:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:59:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:59:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:59:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:59:27,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:59:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:59:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:59:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:59:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:59:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:59:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:59:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:59:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:59:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:59:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:59:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:59:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:59:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:59:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:59:27,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:59:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:59:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:59:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:59:27,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:59:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:59:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:59:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:59:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:59:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:59:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:59:27,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:59:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:59:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:59:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:59:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:59:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:59:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:59:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:59:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 03:59:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 03:59:27,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 03:59:27,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 03:59:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 03:59:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 03:59:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 03:59:27,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 03:59:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 03:59:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 03:59:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:27,372 INFO L134 CoverageAnalysis]: Checked inductivity of 8580 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2022-02-15 03:59:27,372 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:59:27,372 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137200056] [2022-02-15 03:59:27,372 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [137200056] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:59:27,373 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:59:27,373 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [70] imperfect sequences [] total 70 [2022-02-15 03:59:27,373 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731025880] [2022-02-15 03:59:27,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:59:27,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2022-02-15 03:59:27,373 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:59:27,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2022-02-15 03:59:27,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=4627, Unknown=0, NotChecked=0, Total=4830 [2022-02-15 03:59:27,375 INFO L87 Difference]: Start difference. First operand 286 states and 352 transitions. Second operand has 70 states, 70 states have (on average 3.0) internal successors, (210), 69 states have internal predecessors, (210), 68 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-02-15 03:59:45,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 03:59:45,742 INFO L93 Difference]: Finished difference Result 572 states and 708 transitions. [2022-02-15 03:59:45,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-15 03:59:45,743 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 70 states have (on average 3.0) internal successors, (210), 69 states have internal predecessors, (210), 68 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Word has length 541 [2022-02-15 03:59:45,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 03:59:45,745 INFO L225 Difference]: With dead ends: 572 [2022-02-15 03:59:45,745 INFO L226 Difference]: Without dead ends: 561 [2022-02-15 03:59:45,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2212 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=603, Invalid=18029, Unknown=0, NotChecked=0, Total=18632 [2022-02-15 03:59:45,746 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 603 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 41063 mSolverCounterSat, 722 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 41785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 722 IncrementalHoareTripleChecker+Valid, 41063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-02-15 03:59:45,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 426 Invalid, 41785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [722 Valid, 41063 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2022-02-15 03:59:45,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2022-02-15 03:59:45,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 290. [2022-02-15 03:59:45,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 216 states have (on average 1.0092592592592593) internal successors, (218), 216 states have internal predecessors, (218), 70 states have call successors, (70), 4 states have call predecessors, (70), 3 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-02-15 03:59:45,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 357 transitions. [2022-02-15 03:59:45,911 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 357 transitions. Word has length 541 [2022-02-15 03:59:45,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 03:59:45,912 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 357 transitions. [2022-02-15 03:59:45,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 3.0) internal successors, (210), 69 states have internal predecessors, (210), 68 states have call successors, (69), 3 states have call predecessors, (69), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2022-02-15 03:59:45,912 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 357 transitions. [2022-02-15 03:59:45,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-02-15 03:59:45,914 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 03:59:45,914 INFO L514 BasicCegarLoop]: trace histogram [67, 67, 67, 67, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 03:59:45,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-02-15 03:59:45,914 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 03:59:45,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 03:59:45,914 INFO L85 PathProgramCache]: Analyzing trace with hash 276312794, now seen corresponding path program 67 times [2022-02-15 03:59:45,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 03:59:45,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [376656601] [2022-02-15 03:59:45,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 03:59:45,916 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 03:59:45,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 03:59:45,919 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 03:59:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 03:59:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 03:59:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 03:59:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 03:59:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 03:59:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 03:59:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 03:59:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 03:59:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 03:59:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 03:59:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 03:59:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 03:59:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 03:59:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 03:59:47,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 03:59:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 03:59:47,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 03:59:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 03:59:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 03:59:47,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 03:59:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 03:59:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 03:59:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 03:59:47,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 03:59:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 03:59:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 03:59:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 03:59:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 03:59:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 03:59:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 03:59:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 03:59:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 03:59:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 03:59:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 03:59:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 03:59:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 03:59:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 03:59:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 03:59:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 03:59:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 03:59:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 03:59:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 03:59:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 03:59:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 03:59:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 03:59:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 03:59:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 03:59:47,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 03:59:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 03:59:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 03:59:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 03:59:47,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 03:59:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 03:59:47,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 03:59:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 03:59:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 03:59:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 03:59:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 03:59:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 03:59:47,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 03:59:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 03:59:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 03:59:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 03:59:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 03:59:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 03:59:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 03:59:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 03:59:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 03:59:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 03:59:47,794 INFO L134 CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked. [2022-02-15 03:59:47,794 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 03:59:47,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [376656601] [2022-02-15 03:59:47,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [376656601] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 03:59:47,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 03:59:47,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [] total 71 [2022-02-15 03:59:47,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712954319] [2022-02-15 03:59:47,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 03:59:47,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-02-15 03:59:47,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 03:59:47,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-02-15 03:59:47,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=4764, Unknown=0, NotChecked=0, Total=4970 [2022-02-15 03:59:47,796 INFO L87 Difference]: Start difference. First operand 290 states and 357 transitions. Second operand has 71 states, 71 states have (on average 3.0) internal successors, (213), 70 states have internal predecessors, (213), 69 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-02-15 04:00:07,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:00:07,870 INFO L93 Difference]: Finished difference Result 580 states and 718 transitions. [2022-02-15 04:00:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2022-02-15 04:00:07,871 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 3.0) internal successors, (213), 70 states have internal predecessors, (213), 69 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Word has length 549 [2022-02-15 04:00:07,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:00:07,873 INFO L225 Difference]: With dead ends: 580 [2022-02-15 04:00:07,873 INFO L226 Difference]: Without dead ends: 569 [2022-02-15 04:00:07,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2279 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=612, Invalid=18570, Unknown=0, NotChecked=0, Total=19182 [2022-02-15 04:00:07,874 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 561 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 45984 mSolverCounterSat, 682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 46666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 45984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-02-15 04:00:07,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [563 Valid, 559 Invalid, 46666 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [682 Valid, 45984 Invalid, 0 Unknown, 0 Unchecked, 13.1s Time] [2022-02-15 04:00:07,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2022-02-15 04:00:08,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 294. [2022-02-15 04:00:08,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 219 states have (on average 1.0091324200913243) internal successors, (221), 219 states have internal predecessors, (221), 71 states have call successors, (71), 4 states have call predecessors, (71), 3 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-02-15 04:00:08,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 362 transitions. [2022-02-15 04:00:08,042 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 362 transitions. Word has length 549 [2022-02-15 04:00:08,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:00:08,042 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 362 transitions. [2022-02-15 04:00:08,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 3.0) internal successors, (213), 70 states have internal predecessors, (213), 69 states have call successors, (70), 3 states have call predecessors, (70), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2022-02-15 04:00:08,042 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 362 transitions. [2022-02-15 04:00:08,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-02-15 04:00:08,044 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:00:08,044 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 68, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:00:08,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-02-15 04:00:08,045 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:00:08,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:00:08,045 INFO L85 PathProgramCache]: Analyzing trace with hash 412940597, now seen corresponding path program 68 times [2022-02-15 04:00:08,045 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:00:08,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239170649] [2022-02-15 04:00:08,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:00:08,049 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:00:08,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:00:08,053 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:00:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:00:09,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 04:00:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 04:00:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 04:00:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 04:00:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 04:00:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 04:00:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 04:00:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 04:00:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 04:00:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 04:00:09,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 04:00:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 04:00:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 04:00:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 04:00:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 04:00:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 04:00:09,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 04:00:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 04:00:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 04:00:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 04:00:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 04:00:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 04:00:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 04:00:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 04:00:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 04:00:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 04:00:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 04:00:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 04:00:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 04:00:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 04:00:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 04:00:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 04:00:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 04:00:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 04:00:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 04:00:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 04:00:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 04:00:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 04:00:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 04:00:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 04:00:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 04:00:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 04:00:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 04:00:09,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 04:00:09,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 04:00:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 04:00:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 04:00:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 04:00:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 04:00:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 04:00:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 04:00:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 04:00:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 04:00:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 04:00:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 04:00:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 04:00:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 04:00:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 04:00:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 04:00:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 04:00:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 04:00:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 04:00:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 04:00:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 04:00:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 04:00:09,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 04:00:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 04:00:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-15 04:00:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:09,955 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2022-02-15 04:00:09,956 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:00:09,956 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239170649] [2022-02-15 04:00:09,956 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [239170649] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:00:09,956 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:00:09,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [72] imperfect sequences [] total 72 [2022-02-15 04:00:09,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198925245] [2022-02-15 04:00:09,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:00:09,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-02-15 04:00:09,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:00:09,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-02-15 04:00:09,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=4903, Unknown=0, NotChecked=0, Total=5112 [2022-02-15 04:00:09,958 INFO L87 Difference]: Start difference. First operand 294 states and 362 transitions. Second operand has 72 states, 72 states have (on average 3.0) internal successors, (216), 71 states have internal predecessors, (216), 70 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-02-15 04:00:29,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:00:29,830 INFO L93 Difference]: Finished difference Result 588 states and 728 transitions. [2022-02-15 04:00:29,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-15 04:00:29,830 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 3.0) internal successors, (216), 71 states have internal predecessors, (216), 70 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) Word has length 557 [2022-02-15 04:00:29,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:00:29,832 INFO L225 Difference]: With dead ends: 588 [2022-02-15 04:00:29,832 INFO L226 Difference]: Without dead ends: 577 [2022-02-15 04:00:29,833 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2347 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=621, Invalid=19119, Unknown=0, NotChecked=0, Total=19740 [2022-02-15 04:00:29,833 INFO L933 BasicCegarLoop]: 220 mSDtfsCounter, 625 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 43234 mSolverCounterSat, 748 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 43982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 748 IncrementalHoareTripleChecker+Valid, 43234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:00:29,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [627 Valid, 427 Invalid, 43982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [748 Valid, 43234 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2022-02-15 04:00:29,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2022-02-15 04:00:30,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 298. [2022-02-15 04:00:30,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 222 states have (on average 1.009009009009009) internal successors, (224), 222 states have internal predecessors, (224), 72 states have call successors, (72), 4 states have call predecessors, (72), 3 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-02-15 04:00:30,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 367 transitions. [2022-02-15 04:00:30,004 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 367 transitions. Word has length 557 [2022-02-15 04:00:30,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:00:30,004 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 367 transitions. [2022-02-15 04:00:30,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 3.0) internal successors, (216), 71 states have internal predecessors, (216), 70 states have call successors, (71), 3 states have call predecessors, (71), 1 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2022-02-15 04:00:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 367 transitions. [2022-02-15 04:00:30,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2022-02-15 04:00:30,006 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:00:30,007 INFO L514 BasicCegarLoop]: trace histogram [69, 69, 69, 69, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:00:30,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-02-15 04:00:30,007 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:00:30,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:00:30,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1592734864, now seen corresponding path program 69 times [2022-02-15 04:00:30,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:00:30,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028513252] [2022-02-15 04:00:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:00:30,009 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:00:30,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:00:30,012 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:00:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:00:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 04:00:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 04:00:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 04:00:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 04:00:31,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 04:00:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 04:00:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 04:00:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 04:00:31,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 04:00:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 04:00:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 04:00:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 04:00:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 04:00:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 04:00:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 04:00:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 04:00:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 04:00:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 04:00:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 04:00:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 04:00:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 04:00:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 04:00:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 04:00:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 04:00:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 04:00:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 04:00:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 04:00:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 04:00:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 04:00:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 04:00:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 04:00:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 04:00:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 04:00:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 04:00:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 04:00:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 04:00:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 04:00:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 04:00:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 04:00:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 04:00:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 04:00:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 04:00:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 04:00:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 04:00:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 04:00:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 04:00:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 04:00:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 04:00:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 04:00:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 04:00:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 04:00:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 04:00:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 04:00:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 04:00:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 04:00:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 04:00:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 04:00:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 04:00:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 04:00:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 04:00:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 04:00:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 04:00:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 04:00:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 04:00:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 04:00:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 04:00:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 04:00:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-15 04:00:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-15 04:00:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:31,983 INFO L134 CoverageAnalysis]: Checked inductivity of 9384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9384 trivial. 0 not checked. [2022-02-15 04:00:31,983 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:00:31,983 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028513252] [2022-02-15 04:00:31,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1028513252] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:00:31,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:00:31,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [] total 73 [2022-02-15 04:00:31,984 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814817587] [2022-02-15 04:00:31,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:00:31,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-02-15 04:00:31,984 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:00:31,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-02-15 04:00:31,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=5044, Unknown=0, NotChecked=0, Total=5256 [2022-02-15 04:00:31,985 INFO L87 Difference]: Start difference. First operand 298 states and 367 transitions. Second operand has 73 states, 73 states have (on average 3.0) internal successors, (219), 72 states have internal predecessors, (219), 71 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-02-15 04:00:51,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:00:51,221 INFO L93 Difference]: Finished difference Result 596 states and 738 transitions. [2022-02-15 04:00:51,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-15 04:00:51,222 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 3.0) internal successors, (219), 72 states have internal predecessors, (219), 71 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) Word has length 565 [2022-02-15 04:00:51,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:00:51,224 INFO L225 Difference]: With dead ends: 596 [2022-02-15 04:00:51,224 INFO L226 Difference]: Without dead ends: 585 [2022-02-15 04:00:51,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2416 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=630, Invalid=19676, Unknown=0, NotChecked=0, Total=20306 [2022-02-15 04:00:51,225 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 695 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 39945 mSolverCounterSat, 820 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 40765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 39945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:00:51,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [697 Valid, 280 Invalid, 40765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [820 Valid, 39945 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2022-02-15 04:00:51,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2022-02-15 04:00:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 302. [2022-02-15 04:00:51,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 225 states have (on average 1.008888888888889) internal successors, (227), 225 states have internal predecessors, (227), 73 states have call successors, (73), 4 states have call predecessors, (73), 3 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-02-15 04:00:51,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 372 transitions. [2022-02-15 04:00:51,406 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 372 transitions. Word has length 565 [2022-02-15 04:00:51,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:00:51,407 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 372 transitions. [2022-02-15 04:00:51,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 3.0) internal successors, (219), 72 states have internal predecessors, (219), 71 states have call successors, (72), 3 states have call predecessors, (72), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2022-02-15 04:00:51,407 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 372 transitions. [2022-02-15 04:00:51,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2022-02-15 04:00:51,409 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:00:51,409 INFO L514 BasicCegarLoop]: trace histogram [70, 70, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:00:51,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-02-15 04:00:51,409 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:00:51,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:00:51,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1389763349, now seen corresponding path program 70 times [2022-02-15 04:00:51,410 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:00:51,410 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099964907] [2022-02-15 04:00:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:00:51,416 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:00:51,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:00:51,419 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:00:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:00:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 04:00:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 04:00:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 04:00:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 04:00:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 04:00:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 04:00:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 04:00:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 04:00:53,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 04:00:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 04:00:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 04:00:53,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 04:00:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 04:00:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 04:00:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 04:00:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 04:00:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 04:00:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 04:00:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 04:00:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 04:00:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 04:00:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 04:00:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 04:00:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 04:00:53,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 04:00:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 04:00:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 04:00:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 04:00:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 04:00:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 04:00:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 04:00:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 04:00:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 04:00:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 04:00:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 04:00:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 04:00:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 04:00:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 04:00:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 04:00:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 04:00:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 04:00:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 04:00:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 04:00:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 04:00:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 04:00:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 04:00:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 04:00:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 04:00:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 04:00:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 04:00:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 04:00:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 04:00:53,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 04:00:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 04:00:53,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 04:00:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 04:00:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 04:00:53,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 04:00:53,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 04:00:53,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 04:00:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 04:00:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 04:00:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 04:00:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 04:00:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 04:00:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 04:00:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 04:00:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-15 04:00:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-15 04:00:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-15 04:00:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:00:53,455 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2022-02-15 04:00:53,455 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:00:53,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099964907] [2022-02-15 04:00:53,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2099964907] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:00:53,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:00:53,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [74] imperfect sequences [] total 74 [2022-02-15 04:00:53,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642812406] [2022-02-15 04:00:53,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:00:53,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2022-02-15 04:00:53,455 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:00:53,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2022-02-15 04:00:53,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=5187, Unknown=0, NotChecked=0, Total=5402 [2022-02-15 04:00:53,456 INFO L87 Difference]: Start difference. First operand 302 states and 372 transitions. Second operand has 74 states, 74 states have (on average 3.0) internal successors, (222), 73 states have internal predecessors, (222), 72 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-02-15 04:01:14,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:01:14,903 INFO L93 Difference]: Finished difference Result 604 states and 748 transitions. [2022-02-15 04:01:14,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-02-15 04:01:14,903 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 74 states have (on average 3.0) internal successors, (222), 73 states have internal predecessors, (222), 72 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Word has length 573 [2022-02-15 04:01:14,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:01:14,909 INFO L225 Difference]: With dead ends: 604 [2022-02-15 04:01:14,909 INFO L226 Difference]: Without dead ends: 593 [2022-02-15 04:01:14,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2486 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=639, Invalid=20241, Unknown=0, NotChecked=0, Total=20880 [2022-02-15 04:01:14,910 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 637 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 46216 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 46980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 46216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:01:14,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [639 Valid, 453 Invalid, 46980 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [764 Valid, 46216 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2022-02-15 04:01:14,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2022-02-15 04:01:15,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 306. [2022-02-15 04:01:15,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 228 states have (on average 1.0087719298245614) internal successors, (230), 228 states have internal predecessors, (230), 74 states have call successors, (74), 4 states have call predecessors, (74), 3 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-02-15 04:01:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 377 transitions. [2022-02-15 04:01:15,095 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 377 transitions. Word has length 573 [2022-02-15 04:01:15,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:01:15,096 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 377 transitions. [2022-02-15 04:01:15,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 3.0) internal successors, (222), 73 states have internal predecessors, (222), 72 states have call successors, (73), 3 states have call predecessors, (73), 1 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-02-15 04:01:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 377 transitions. [2022-02-15 04:01:15,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2022-02-15 04:01:15,101 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:01:15,102 INFO L514 BasicCegarLoop]: trace histogram [71, 71, 71, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:01:15,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-02-15 04:01:15,102 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:01:15,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:01:15,102 INFO L85 PathProgramCache]: Analyzing trace with hash -502789562, now seen corresponding path program 71 times [2022-02-15 04:01:15,102 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:01:15,102 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479128233] [2022-02-15 04:01:15,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:01:15,104 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:01:15,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:01:15,107 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:01:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:01:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 04:01:17,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 04:01:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 04:01:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 04:01:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 04:01:17,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 04:01:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 04:01:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 04:01:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 04:01:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 04:01:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 04:01:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 04:01:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 04:01:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 04:01:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 04:01:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 04:01:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 04:01:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 04:01:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 04:01:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 04:01:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 04:01:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 04:01:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 04:01:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 04:01:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 04:01:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 04:01:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 04:01:17,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 04:01:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 04:01:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 04:01:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 04:01:17,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 04:01:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 04:01:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 04:01:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 04:01:17,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 04:01:17,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 04:01:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 04:01:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 04:01:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 04:01:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 04:01:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 04:01:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 04:01:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 04:01:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 04:01:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 04:01:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 04:01:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 04:01:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 04:01:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 04:01:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 04:01:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 04:01:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 04:01:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 04:01:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 04:01:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 04:01:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 04:01:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 04:01:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 04:01:17,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 04:01:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 04:01:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 04:01:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 04:01:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 04:01:17,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 04:01:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 04:01:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 04:01:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-15 04:01:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-15 04:01:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-15 04:01:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-15 04:01:17,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:17,219 INFO L134 CoverageAnalysis]: Checked inductivity of 9940 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9940 trivial. 0 not checked. [2022-02-15 04:01:17,220 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:01:17,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479128233] [2022-02-15 04:01:17,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [479128233] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:01:17,220 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:01:17,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [] total 75 [2022-02-15 04:01:17,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869136433] [2022-02-15 04:01:17,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:01:17,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-02-15 04:01:17,220 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:01:17,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-02-15 04:01:17,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=5332, Unknown=0, NotChecked=0, Total=5550 [2022-02-15 04:01:17,222 INFO L87 Difference]: Start difference. First operand 306 states and 377 transitions. Second operand has 75 states, 75 states have (on average 3.0) internal successors, (225), 74 states have internal predecessors, (225), 73 states have call successors, (74), 3 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-02-15 04:01:39,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:01:39,532 INFO L93 Difference]: Finished difference Result 612 states and 758 transitions. [2022-02-15 04:01:39,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-02-15 04:01:39,533 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 3.0) internal successors, (225), 74 states have internal predecessors, (225), 73 states have call successors, (74), 3 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) Word has length 581 [2022-02-15 04:01:39,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:01:39,536 INFO L225 Difference]: With dead ends: 612 [2022-02-15 04:01:39,536 INFO L226 Difference]: Without dead ends: 601 [2022-02-15 04:01:39,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2557 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=648, Invalid=20814, Unknown=0, NotChecked=0, Total=21462 [2022-02-15 04:01:39,537 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 643 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 47743 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 48515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 47743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-02-15 04:01:39,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 466 Invalid, 48515 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [772 Valid, 47743 Invalid, 0 Unknown, 0 Unchecked, 13.8s Time] [2022-02-15 04:01:39,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-02-15 04:01:39,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 310. [2022-02-15 04:01:39,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 231 states have (on average 1.0086580086580086) internal successors, (233), 231 states have internal predecessors, (233), 75 states have call successors, (75), 4 states have call predecessors, (75), 3 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-02-15 04:01:39,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 382 transitions. [2022-02-15 04:01:39,729 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 382 transitions. Word has length 581 [2022-02-15 04:01:39,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:01:39,730 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 382 transitions. [2022-02-15 04:01:39,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 3.0) internal successors, (225), 74 states have internal predecessors, (225), 73 states have call successors, (74), 3 states have call predecessors, (74), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2022-02-15 04:01:39,730 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 382 transitions. [2022-02-15 04:01:39,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2022-02-15 04:01:39,732 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:01:39,732 INFO L514 BasicCegarLoop]: trace histogram [72, 72, 72, 72, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:01:39,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-02-15 04:01:39,733 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:01:39,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:01:39,733 INFO L85 PathProgramCache]: Analyzing trace with hash -247159647, now seen corresponding path program 72 times [2022-02-15 04:01:39,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:01:39,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898016247] [2022-02-15 04:01:39,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:01:39,735 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:01:39,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:01:39,738 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:01:39,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:01:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 04:01:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 04:01:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 04:01:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 04:01:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 04:01:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 04:01:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 04:01:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 04:01:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 04:01:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 04:01:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 04:01:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 04:01:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 04:01:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 04:01:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 04:01:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 04:01:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 04:01:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 04:01:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 04:01:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 04:01:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 04:01:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 04:01:41,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 04:01:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 04:01:41,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 04:01:41,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 04:01:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 04:01:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 04:01:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 04:01:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 04:01:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 04:01:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 04:01:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 04:01:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 04:01:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 04:01:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 04:01:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 04:01:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 04:01:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 04:01:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 04:01:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 04:01:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 04:01:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 04:01:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 04:01:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 04:01:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 04:01:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 04:01:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 04:01:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 04:01:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 04:01:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 04:01:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 04:01:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 04:01:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 04:01:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 04:01:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 04:01:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 04:01:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 04:01:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 04:01:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 04:01:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 04:01:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 04:01:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 04:01:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 04:01:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 04:01:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 04:01:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 04:01:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-15 04:01:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-15 04:01:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-15 04:01:41,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-15 04:01:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-15 04:01:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:01:41,881 INFO L134 CoverageAnalysis]: Checked inductivity of 10224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10224 trivial. 0 not checked. [2022-02-15 04:01:41,882 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:01:41,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898016247] [2022-02-15 04:01:41,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1898016247] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:01:41,882 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:01:41,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [76] imperfect sequences [] total 76 [2022-02-15 04:01:41,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387888353] [2022-02-15 04:01:41,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:01:41,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-02-15 04:01:41,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:01:41,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-02-15 04:01:41,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=5479, Unknown=0, NotChecked=0, Total=5700 [2022-02-15 04:01:41,884 INFO L87 Difference]: Start difference. First operand 310 states and 382 transitions. Second operand has 76 states, 76 states have (on average 3.0) internal successors, (228), 75 states have internal predecessors, (228), 74 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-02-15 04:02:06,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:02:06,175 INFO L93 Difference]: Finished difference Result 620 states and 768 transitions. [2022-02-15 04:02:06,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-02-15 04:02:06,176 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 76 states have (on average 3.0) internal successors, (228), 75 states have internal predecessors, (228), 74 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) Word has length 589 [2022-02-15 04:02:06,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:02:06,178 INFO L225 Difference]: With dead ends: 620 [2022-02-15 04:02:06,178 INFO L226 Difference]: Without dead ends: 609 [2022-02-15 04:02:06,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2629 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=657, Invalid=21395, Unknown=0, NotChecked=0, Total=22052 [2022-02-15 04:02:06,179 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 601 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 53014 mSolverCounterSat, 732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 53746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 732 IncrementalHoareTripleChecker+Valid, 53014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:02:06,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 599 Invalid, 53746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [732 Valid, 53014 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2022-02-15 04:02:06,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2022-02-15 04:02:06,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 314. [2022-02-15 04:02:06,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 234 states have (on average 1.0085470085470085) internal successors, (236), 234 states have internal predecessors, (236), 76 states have call successors, (76), 4 states have call predecessors, (76), 3 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-02-15 04:02:06,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 387 transitions. [2022-02-15 04:02:06,379 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 387 transitions. Word has length 589 [2022-02-15 04:02:06,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:02:06,379 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 387 transitions. [2022-02-15 04:02:06,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 3.0) internal successors, (228), 75 states have internal predecessors, (228), 74 states have call successors, (75), 3 states have call predecessors, (75), 1 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-02-15 04:02:06,379 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 387 transitions. [2022-02-15 04:02:06,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2022-02-15 04:02:06,382 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:02:06,382 INFO L514 BasicCegarLoop]: trace histogram [73, 73, 73, 73, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:02:06,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-02-15 04:02:06,382 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:02:06,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:02:06,382 INFO L85 PathProgramCache]: Analyzing trace with hash -476400644, now seen corresponding path program 73 times [2022-02-15 04:02:06,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:02:06,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648665077] [2022-02-15 04:02:06,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:02:06,387 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:02:06,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:02:06,391 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:02:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:02:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 04:02:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 04:02:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 04:02:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 04:02:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 04:02:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 04:02:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 04:02:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 04:02:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 04:02:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 04:02:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 04:02:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 04:02:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 04:02:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 04:02:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 04:02:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 04:02:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 04:02:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 04:02:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 04:02:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 04:02:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 04:02:08,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 04:02:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 04:02:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 04:02:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 04:02:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 04:02:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 04:02:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 04:02:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 04:02:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 04:02:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 04:02:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 04:02:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 04:02:08,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 04:02:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 04:02:08,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 04:02:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 04:02:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 04:02:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 04:02:08,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 04:02:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 04:02:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 04:02:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 04:02:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 04:02:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 04:02:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 04:02:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 04:02:08,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 04:02:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 04:02:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 04:02:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 04:02:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 04:02:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 04:02:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 04:02:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 04:02:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 04:02:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 04:02:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 04:02:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 04:02:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 04:02:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 04:02:08,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 04:02:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 04:02:08,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 04:02:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 04:02:08,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 04:02:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 04:02:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-15 04:02:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-15 04:02:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-15 04:02:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-15 04:02:08,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-15 04:02:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-15 04:02:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:08,585 INFO L134 CoverageAnalysis]: Checked inductivity of 10512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10512 trivial. 0 not checked. [2022-02-15 04:02:08,585 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:02:08,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648665077] [2022-02-15 04:02:08,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [648665077] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:02:08,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:02:08,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [77] imperfect sequences [] total 77 [2022-02-15 04:02:08,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362498318] [2022-02-15 04:02:08,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:02:08,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-02-15 04:02:08,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:02:08,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-02-15 04:02:08,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=5628, Unknown=0, NotChecked=0, Total=5852 [2022-02-15 04:02:08,587 INFO L87 Difference]: Start difference. First operand 314 states and 387 transitions. Second operand has 77 states, 77 states have (on average 3.0) internal successors, (231), 76 states have internal predecessors, (231), 75 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-02-15 04:02:30,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:02:30,691 INFO L93 Difference]: Finished difference Result 628 states and 778 transitions. [2022-02-15 04:02:30,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-02-15 04:02:30,691 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 77 states have (on average 3.0) internal successors, (231), 76 states have internal predecessors, (231), 75 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) Word has length 597 [2022-02-15 04:02:30,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:02:30,693 INFO L225 Difference]: With dead ends: 628 [2022-02-15 04:02:30,693 INFO L226 Difference]: Without dead ends: 617 [2022-02-15 04:02:30,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2702 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=666, Invalid=21984, Unknown=0, NotChecked=0, Total=22650 [2022-02-15 04:02:30,695 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 731 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 44903 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 45767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 44903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-02-15 04:02:30,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [733 Valid, 302 Invalid, 45767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [864 Valid, 44903 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2022-02-15 04:02:30,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2022-02-15 04:02:30,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 318. [2022-02-15 04:02:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 237 states have (on average 1.0084388185654007) internal successors, (239), 237 states have internal predecessors, (239), 77 states have call successors, (77), 4 states have call predecessors, (77), 3 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-02-15 04:02:30,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 392 transitions. [2022-02-15 04:02:30,897 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 392 transitions. Word has length 597 [2022-02-15 04:02:30,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:02:30,898 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 392 transitions. [2022-02-15 04:02:30,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 3.0) internal successors, (231), 76 states have internal predecessors, (231), 75 states have call successors, (76), 3 states have call predecessors, (76), 1 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2022-02-15 04:02:30,898 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 392 transitions. [2022-02-15 04:02:30,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-02-15 04:02:30,900 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:02:30,901 INFO L514 BasicCegarLoop]: trace histogram [74, 74, 74, 74, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:02:30,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-02-15 04:02:30,901 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:02:30,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:02:30,901 INFO L85 PathProgramCache]: Analyzing trace with hash -691718057, now seen corresponding path program 74 times [2022-02-15 04:02:30,901 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:02:30,901 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384937869] [2022-02-15 04:02:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:02:30,903 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:02:30,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:02:30,906 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:02:30,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:02:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 04:02:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 04:02:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 04:02:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 04:02:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 04:02:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 04:02:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 04:02:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 04:02:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 04:02:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 04:02:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 04:02:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 04:02:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 04:02:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 04:02:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 04:02:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 04:02:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 04:02:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 04:02:33,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 04:02:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 04:02:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 04:02:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 04:02:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 04:02:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 04:02:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 04:02:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 04:02:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 04:02:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 04:02:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 04:02:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 04:02:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 04:02:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 04:02:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 04:02:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 04:02:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 04:02:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 04:02:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 04:02:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 04:02:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 04:02:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 04:02:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 04:02:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 04:02:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 04:02:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 04:02:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 04:02:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 04:02:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 04:02:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 04:02:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 04:02:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 04:02:33,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 04:02:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 04:02:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 04:02:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 04:02:33,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 04:02:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 04:02:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 04:02:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 04:02:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 04:02:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 04:02:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 04:02:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 04:02:33,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 04:02:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 04:02:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 04:02:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 04:02:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 04:02:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-15 04:02:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-15 04:02:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-15 04:02:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-15 04:02:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-15 04:02:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-15 04:02:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-15 04:02:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:02:33,140 INFO L134 CoverageAnalysis]: Checked inductivity of 10804 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10804 trivial. 0 not checked. [2022-02-15 04:02:33,140 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:02:33,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384937869] [2022-02-15 04:02:33,140 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1384937869] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:02:33,140 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:02:33,140 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [78] imperfect sequences [] total 78 [2022-02-15 04:02:33,140 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348994001] [2022-02-15 04:02:33,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:02:33,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-15 04:02:33,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:02:33,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-15 04:02:33,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=5779, Unknown=0, NotChecked=0, Total=6006 [2022-02-15 04:02:33,142 INFO L87 Difference]: Start difference. First operand 318 states and 392 transitions. Second operand has 78 states, 78 states have (on average 3.0) internal successors, (234), 77 states have internal predecessors, (234), 76 states have call successors, (77), 3 states have call predecessors, (77), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-02-15 04:02:57,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:02:57,965 INFO L93 Difference]: Finished difference Result 636 states and 788 transitions. [2022-02-15 04:02:57,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-15 04:02:57,966 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 78 states have (on average 3.0) internal successors, (234), 77 states have internal predecessors, (234), 76 states have call successors, (77), 3 states have call predecessors, (77), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) Word has length 605 [2022-02-15 04:02:57,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:02:57,973 INFO L225 Difference]: With dead ends: 636 [2022-02-15 04:02:57,973 INFO L226 Difference]: Without dead ends: 625 [2022-02-15 04:02:57,974 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2776 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=675, Invalid=22581, Unknown=0, NotChecked=0, Total=23256 [2022-02-15 04:02:57,975 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 647 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 53581 mSolverCounterSat, 782 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 54363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 782 IncrementalHoareTripleChecker+Valid, 53581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-02-15 04:02:57,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [649 Valid, 540 Invalid, 54363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [782 Valid, 53581 Invalid, 0 Unknown, 0 Unchecked, 15.4s Time] [2022-02-15 04:02:57,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-02-15 04:02:58,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 322. [2022-02-15 04:02:58,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 240 states have (on average 1.0083333333333333) internal successors, (242), 240 states have internal predecessors, (242), 78 states have call successors, (78), 4 states have call predecessors, (78), 3 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-02-15 04:02:58,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 397 transitions. [2022-02-15 04:02:58,179 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 397 transitions. Word has length 605 [2022-02-15 04:02:58,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:02:58,180 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 397 transitions. [2022-02-15 04:02:58,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 3.0) internal successors, (234), 77 states have internal predecessors, (234), 76 states have call successors, (77), 3 states have call predecessors, (77), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2022-02-15 04:02:58,180 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 397 transitions. [2022-02-15 04:02:58,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2022-02-15 04:02:58,182 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:02:58,183 INFO L514 BasicCegarLoop]: trace histogram [75, 75, 75, 75, 75, 75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:02:58,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-02-15 04:02:58,183 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:02:58,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:02:58,183 INFO L85 PathProgramCache]: Analyzing trace with hash -41995854, now seen corresponding path program 75 times [2022-02-15 04:02:58,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:02:58,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185190784] [2022-02-15 04:02:58,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:02:58,185 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:02:58,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:02:58,188 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:02:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:03:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 04:03:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 04:03:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 04:03:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 04:03:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 04:03:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 04:03:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 04:03:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 04:03:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 04:03:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 04:03:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 04:03:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 04:03:00,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 04:03:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 04:03:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 04:03:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 04:03:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 04:03:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 04:03:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 04:03:00,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 04:03:00,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 04:03:00,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 04:03:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 04:03:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 04:03:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 04:03:00,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 04:03:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 04:03:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 04:03:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 04:03:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 04:03:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 04:03:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 04:03:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 04:03:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 04:03:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 04:03:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 04:03:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 04:03:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 04:03:00,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 04:03:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 04:03:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 04:03:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 04:03:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 04:03:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 04:03:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 04:03:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 04:03:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 04:03:00,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 04:03:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 04:03:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 04:03:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 04:03:00,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 04:03:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 04:03:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 04:03:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 04:03:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 04:03:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 04:03:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 04:03:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 04:03:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 04:03:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 04:03:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 04:03:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 04:03:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 04:03:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 04:03:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 04:03:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 04:03:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-15 04:03:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-15 04:03:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-15 04:03:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-15 04:03:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-15 04:03:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-15 04:03:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-15 04:03:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-02-15 04:03:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2022-02-15 04:03:00,413 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:03:00,413 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185190784] [2022-02-15 04:03:00,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1185190784] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:03:00,413 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:03:00,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [79] imperfect sequences [] total 79 [2022-02-15 04:03:00,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598341969] [2022-02-15 04:03:00,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:03:00,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-02-15 04:03:00,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:03:00,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-02-15 04:03:00,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=5932, Unknown=0, NotChecked=0, Total=6162 [2022-02-15 04:03:00,414 INFO L87 Difference]: Start difference. First operand 322 states and 397 transitions. Second operand has 79 states, 79 states have (on average 3.0) internal successors, (237), 78 states have internal predecessors, (237), 77 states have call successors, (78), 3 states have call predecessors, (78), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-02-15 04:03:26,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:03:26,083 INFO L93 Difference]: Finished difference Result 644 states and 798 transitions. [2022-02-15 04:03:26,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2022-02-15 04:03:26,083 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 79 states have (on average 3.0) internal successors, (237), 78 states have internal predecessors, (237), 77 states have call successors, (78), 3 states have call predecessors, (78), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) Word has length 613 [2022-02-15 04:03:26,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:03:26,085 INFO L225 Difference]: With dead ends: 644 [2022-02-15 04:03:26,085 INFO L226 Difference]: Without dead ends: 633 [2022-02-15 04:03:26,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2851 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=684, Invalid=23186, Unknown=0, NotChecked=0, Total=23870 [2022-02-15 04:03:26,087 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 653 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 55218 mSolverCounterSat, 790 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 56008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 790 IncrementalHoareTripleChecker+Valid, 55218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-02-15 04:03:26,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [655 Valid, 553 Invalid, 56008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [790 Valid, 55218 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2022-02-15 04:03:26,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2022-02-15 04:03:26,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 326. [2022-02-15 04:03:26,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 243 states have (on average 1.008230452674897) internal successors, (245), 243 states have internal predecessors, (245), 79 states have call successors, (79), 4 states have call predecessors, (79), 3 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-02-15 04:03:26,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 402 transitions. [2022-02-15 04:03:26,301 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 402 transitions. Word has length 613 [2022-02-15 04:03:26,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:03:26,301 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 402 transitions. [2022-02-15 04:03:26,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 3.0) internal successors, (237), 78 states have internal predecessors, (237), 77 states have call successors, (78), 3 states have call predecessors, (78), 1 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2022-02-15 04:03:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 402 transitions. [2022-02-15 04:03:26,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 622 [2022-02-15 04:03:26,304 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:03:26,304 INFO L514 BasicCegarLoop]: trace histogram [76, 76, 76, 76, 76, 76, 76, 76, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:03:26,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-02-15 04:03:26,304 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:03:26,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:03:26,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1618763763, now seen corresponding path program 76 times [2022-02-15 04:03:26,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:03:26,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1483354454] [2022-02-15 04:03:26,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:03:26,306 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:03:26,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:03:26,310 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:03:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:03:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 04:03:28,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 04:03:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 04:03:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 04:03:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 04:03:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 04:03:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 04:03:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 04:03:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 04:03:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 04:03:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 04:03:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 04:03:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 04:03:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 04:03:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 04:03:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 04:03:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 04:03:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 04:03:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 04:03:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 04:03:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 04:03:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 04:03:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 04:03:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 04:03:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 04:03:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 04:03:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 04:03:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 04:03:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 04:03:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 04:03:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 04:03:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 04:03:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 04:03:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 04:03:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 04:03:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 04:03:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 04:03:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 04:03:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 04:03:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 04:03:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 04:03:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 04:03:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 04:03:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 04:03:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 04:03:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 04:03:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 04:03:28,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 04:03:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 04:03:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 04:03:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 04:03:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 04:03:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 04:03:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 04:03:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 04:03:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 04:03:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 04:03:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 04:03:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 04:03:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 04:03:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 04:03:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 04:03:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 04:03:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 04:03:28,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 04:03:28,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 04:03:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 04:03:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-15 04:03:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-15 04:03:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-15 04:03:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-15 04:03:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-15 04:03:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-15 04:03:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-15 04:03:28,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-02-15 04:03:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-02-15 04:03:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:28,638 INFO L134 CoverageAnalysis]: Checked inductivity of 11400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2022-02-15 04:03:28,638 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:03:28,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1483354454] [2022-02-15 04:03:28,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1483354454] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:03:28,638 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:03:28,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [80] imperfect sequences [] total 80 [2022-02-15 04:03:28,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781951529] [2022-02-15 04:03:28,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:03:28,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-02-15 04:03:28,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:03:28,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-02-15 04:03:28,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=6087, Unknown=0, NotChecked=0, Total=6320 [2022-02-15 04:03:28,641 INFO L87 Difference]: Start difference. First operand 326 states and 402 transitions. Second operand has 80 states, 80 states have (on average 3.0) internal successors, (240), 79 states have internal predecessors, (240), 78 states have call successors, (79), 3 states have call predecessors, (79), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-02-15 04:03:54,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:03:54,279 INFO L93 Difference]: Finished difference Result 652 states and 808 transitions. [2022-02-15 04:03:54,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-15 04:03:54,280 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 80 states have (on average 3.0) internal successors, (240), 79 states have internal predecessors, (240), 78 states have call successors, (79), 3 states have call predecessors, (79), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) Word has length 621 [2022-02-15 04:03:54,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:03:54,282 INFO L225 Difference]: With dead ends: 652 [2022-02-15 04:03:54,282 INFO L226 Difference]: Without dead ends: 641 [2022-02-15 04:03:54,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2927 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=693, Invalid=23799, Unknown=0, NotChecked=0, Total=24492 [2022-02-15 04:03:54,283 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 691 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 54271 mSolverCounterSat, 830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 55101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 830 IncrementalHoareTripleChecker+Valid, 54271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-02-15 04:03:54,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [693 Valid, 486 Invalid, 55101 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [830 Valid, 54271 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2022-02-15 04:03:54,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2022-02-15 04:03:54,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 330. [2022-02-15 04:03:54,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 246 states have (on average 1.008130081300813) internal successors, (248), 246 states have internal predecessors, (248), 80 states have call successors, (80), 4 states have call predecessors, (80), 3 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2022-02-15 04:03:54,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 407 transitions. [2022-02-15 04:03:54,502 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 407 transitions. Word has length 621 [2022-02-15 04:03:54,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:03:54,502 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 407 transitions. [2022-02-15 04:03:54,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 3.0) internal successors, (240), 79 states have internal predecessors, (240), 78 states have call successors, (79), 3 states have call predecessors, (79), 1 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2022-02-15 04:03:54,502 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 407 transitions. [2022-02-15 04:03:54,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2022-02-15 04:03:54,505 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:03:54,505 INFO L514 BasicCegarLoop]: trace histogram [77, 77, 77, 77, 77, 77, 77, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:03:54,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-02-15 04:03:54,505 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:03:54,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:03:54,505 INFO L85 PathProgramCache]: Analyzing trace with hash 428704616, now seen corresponding path program 77 times [2022-02-15 04:03:54,505 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:03:54,505 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201590621] [2022-02-15 04:03:54,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:03:54,507 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:03:54,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:03:54,511 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:03:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:03:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 04:03:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 04:03:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 04:03:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 04:03:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 04:03:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 04:03:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 04:03:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 04:03:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 04:03:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 04:03:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 04:03:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 04:03:56,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 04:03:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 04:03:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 04:03:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 04:03:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 04:03:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 04:03:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 04:03:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 04:03:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 04:03:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 04:03:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 04:03:56,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 04:03:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 04:03:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 04:03:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 04:03:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 04:03:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 04:03:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 04:03:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 04:03:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 04:03:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 04:03:56,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 04:03:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 04:03:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 04:03:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 04:03:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 04:03:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 04:03:56,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 04:03:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 04:03:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 04:03:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 04:03:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 04:03:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 04:03:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 04:03:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 04:03:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 04:03:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 04:03:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 04:03:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 04:03:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 04:03:56,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 04:03:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 04:03:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 04:03:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 04:03:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 04:03:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 04:03:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 04:03:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 04:03:56,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 04:03:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 04:03:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 04:03:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 04:03:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 04:03:56,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 04:03:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 04:03:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-15 04:03:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-15 04:03:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-15 04:03:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-15 04:03:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-15 04:03:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-15 04:03:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-15 04:03:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-02-15 04:03:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-02-15 04:03:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-02-15 04:03:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:03:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 11704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11704 trivial. 0 not checked. [2022-02-15 04:03:56,878 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:03:56,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201590621] [2022-02-15 04:03:56,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1201590621] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:03:56,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:03:56,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [81] imperfect sequences [] total 81 [2022-02-15 04:03:56,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871761624] [2022-02-15 04:03:56,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:03:56,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-02-15 04:03:56,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:03:56,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-02-15 04:03:56,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=6244, Unknown=0, NotChecked=0, Total=6480 [2022-02-15 04:03:56,879 INFO L87 Difference]: Start difference. First operand 330 states and 407 transitions. Second operand has 81 states, 81 states have (on average 3.0) internal successors, (243), 80 states have internal predecessors, (243), 79 states have call successors, (80), 3 states have call predecessors, (80), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-02-15 04:04:21,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 04:04:21,149 INFO L93 Difference]: Finished difference Result 660 states and 818 transitions. [2022-02-15 04:04:21,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-02-15 04:04:21,150 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 81 states have (on average 3.0) internal successors, (243), 80 states have internal predecessors, (243), 79 states have call successors, (80), 3 states have call predecessors, (80), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Word has length 629 [2022-02-15 04:04:21,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 04:04:21,151 INFO L225 Difference]: With dead ends: 660 [2022-02-15 04:04:21,151 INFO L226 Difference]: Without dead ends: 649 [2022-02-15 04:04:21,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3004 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=702, Invalid=24420, Unknown=0, NotChecked=0, Total=25122 [2022-02-15 04:04:21,153 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 787 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 48499 mSolverCounterSat, 928 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 49427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 928 IncrementalHoareTripleChecker+Valid, 48499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-02-15 04:04:21,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [789 Valid, 274 Invalid, 49427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [928 Valid, 48499 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2022-02-15 04:04:21,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2022-02-15 04:04:21,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 334. [2022-02-15 04:04:21,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 249 states have (on average 1.0080321285140563) internal successors, (251), 249 states have internal predecessors, (251), 81 states have call successors, (81), 4 states have call predecessors, (81), 3 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2022-02-15 04:04:21,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 412 transitions. [2022-02-15 04:04:21,378 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 412 transitions. Word has length 629 [2022-02-15 04:04:21,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 04:04:21,378 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 412 transitions. [2022-02-15 04:04:21,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 3.0) internal successors, (243), 80 states have internal predecessors, (243), 79 states have call successors, (80), 3 states have call predecessors, (80), 1 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2022-02-15 04:04:21,378 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 412 transitions. [2022-02-15 04:04:21,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2022-02-15 04:04:21,381 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 04:04:21,381 INFO L514 BasicCegarLoop]: trace histogram [78, 78, 78, 78, 78, 78, 78, 78, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 04:04:21,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-02-15 04:04:21,381 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 04:04:21,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 04:04:21,382 INFO L85 PathProgramCache]: Analyzing trace with hash -581444669, now seen corresponding path program 78 times [2022-02-15 04:04:21,382 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 04:04:21,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2109267040] [2022-02-15 04:04:21,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 04:04:21,383 INFO L97 AcceleratorQvasr]: Qvasr could not accelerate loop because java.lang.UnsupportedOperationException: Qvasr do not support arrays. [2022-02-15 04:04:21,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 04:04:21,387 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 04:04:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 04:04:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 04:04:23,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-02-15 04:04:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-02-15 04:04:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-02-15 04:04:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-02-15 04:04:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-02-15 04:04:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-02-15 04:04:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-02-15 04:04:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-02-15 04:04:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-02-15 04:04:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-02-15 04:04:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-02-15 04:04:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-02-15 04:04:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-02-15 04:04:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-02-15 04:04:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-02-15 04:04:23,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-02-15 04:04:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-02-15 04:04:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-02-15 04:04:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-02-15 04:04:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-02-15 04:04:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-02-15 04:04:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-02-15 04:04:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-02-15 04:04:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-02-15 04:04:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2022-02-15 04:04:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-02-15 04:04:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-02-15 04:04:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-02-15 04:04:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-02-15 04:04:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-02-15 04:04:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-02-15 04:04:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-02-15 04:04:23,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-02-15 04:04:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-02-15 04:04:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-02-15 04:04:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-02-15 04:04:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-02-15 04:04:23,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-02-15 04:04:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-02-15 04:04:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-02-15 04:04:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-02-15 04:04:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-02-15 04:04:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-02-15 04:04:23,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-02-15 04:04:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-02-15 04:04:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-02-15 04:04:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2022-02-15 04:04:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2022-02-15 04:04:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2022-02-15 04:04:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2022-02-15 04:04:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-02-15 04:04:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 423 [2022-02-15 04:04:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-02-15 04:04:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 439 [2022-02-15 04:04:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2022-02-15 04:04:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 455 [2022-02-15 04:04:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2022-02-15 04:04:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 471 [2022-02-15 04:04:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 479 [2022-02-15 04:04:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2022-02-15 04:04:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 495 [2022-02-15 04:04:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2022-02-15 04:04:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 511 [2022-02-15 04:04:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 519 [2022-02-15 04:04:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2022-02-15 04:04:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 535 [2022-02-15 04:04:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 543 [2022-02-15 04:04:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2022-02-15 04:04:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 559 [2022-02-15 04:04:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 567 [2022-02-15 04:04:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 575 [2022-02-15 04:04:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 583 [2022-02-15 04:04:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 591 [2022-02-15 04:04:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2022-02-15 04:04:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2022-02-15 04:04:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 615 [2022-02-15 04:04:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 623 [2022-02-15 04:04:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 04:04:23,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12012 trivial. 0 not checked. [2022-02-15 04:04:23,820 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 04:04:23,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2109267040] [2022-02-15 04:04:23,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [2109267040] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 04:04:23,820 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 04:04:23,820 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [82] imperfect sequences [] total 82 [2022-02-15 04:04:23,820 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870391447] [2022-02-15 04:04:23,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 04:04:23,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-15 04:04:23,821 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 04:04:23,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-15 04:04:23,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=6403, Unknown=0, NotChecked=0, Total=6642 [2022-02-15 04:04:23,822 INFO L87 Difference]: Start difference. First operand 334 states and 412 transitions. Second operand has 82 states, 82 states have (on average 3.0) internal successors, (246), 81 states have internal predecessors, (246), 80 states have call successors, (81), 3 states have call predecessors, (81), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79)