/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-06 14:48:24,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-06 14:48:24,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-06 14:48:24,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-06 14:48:24,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-06 14:48:24,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-06 14:48:24,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-06 14:48:24,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-04-06 14:48:24,710 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-06 14:48:24,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-06 14:48:24,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-06 14:48:24,711 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-06 14:48:24,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-06 14:48:24,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-06 14:48:24,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-06 14:48:24,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-06 14:48:24,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-06 14:48:24,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-06 14:48:24,712 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-06 14:48:24,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-06 14:48:24,712 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-06 14:48:24,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-06 14:48:24,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-06 14:48:24,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-06 14:48:24,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-06 14:48:24,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-06 14:48:24,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 14:48:24,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-06 14:48:24,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-04-06 14:48:24,714 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-04-06 14:48:24,714 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-04-06 14:48:24,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-06 14:48:24,714 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-04-06 14:48:24,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-06 14:48:24,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-06 14:48:24,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-06 14:48:24,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-06 14:48:24,943 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-06 14:48:24,944 INFO L275 PluginConnector]: CDTParser initialized [2022-04-06 14:48:24,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2022-04-06 14:48:24,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db5aa979/b3a3542ddf074cc288744aeecd61afd4/FLAG6bdc1990a [2022-04-06 14:48:25,382 INFO L306 CDTParser]: Found 1 translation units. [2022-04-06 14:48:25,385 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2022-04-06 14:48:25,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db5aa979/b3a3542ddf074cc288744aeecd61afd4/FLAG6bdc1990a [2022-04-06 14:48:25,411 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db5aa979/b3a3542ddf074cc288744aeecd61afd4 [2022-04-06 14:48:25,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-06 14:48:25,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-04-06 14:48:25,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-06 14:48:25,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-06 14:48:25,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-06 14:48:25,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:48:25" (1/1) ... [2022-04-06 14:48:25,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60824f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:48:25, skipping insertion in model container [2022-04-06 14:48:25,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.04 02:48:25" (1/1) ... [2022-04-06 14:48:25,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-06 14:48:25,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-06 14:48:25,697 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-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2022-04-06 14:48:25,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 14:48:25,712 INFO L203 MainTranslator]: Completed pre-run [2022-04-06 14:48:25,792 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-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2022-04-06 14:48:25,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-06 14:48:25,809 INFO L208 MainTranslator]: Completed translation [2022-04-06 14:48:25,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:48:25 WrapperNode [2022-04-06 14:48:25,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-06 14:48:25,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-06 14:48:25,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-06 14:48:25,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-06 14:48:25,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:48:25" (1/1) ... [2022-04-06 14:48:25,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:48:25" (1/1) ... [2022-04-06 14:48:25,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:48:25" (1/1) ... [2022-04-06 14:48:25,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:48:25" (1/1) ... [2022-04-06 14:48:25,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:48:25" (1/1) ... [2022-04-06 14:48:25,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:48:25" (1/1) ... [2022-04-06 14:48:25,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:48:25" (1/1) ... [2022-04-06 14:48:25,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-06 14:48:25,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-06 14:48:25,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-06 14:48:25,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-06 14:48:25,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:48:25" (1/1) ... [2022-04-06 14:48:25,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-06 14:48:25,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:48:25,936 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) [2022-04-06 14:48:25,947 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 [2022-04-06 14:48:25,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-06 14:48:25,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-06 14:48:25,973 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-06 14:48:25,973 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-06 14:48:25,973 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-06 14:48:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-06 14:48:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-06 14:48:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-06 14:48:25,974 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2022-04-06 14:48:25,976 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2022-04-06 14:48:25,976 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-06 14:48:25,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-06 14:48:25,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-06 14:48:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-06 14:48:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-06 14:48:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-06 14:48:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-06 14:48:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-06 14:48:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-06 14:48:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-06 14:48:25,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-06 14:48:26,136 INFO L234 CfgBuilder]: Building ICFG [2022-04-06 14:48:26,137 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-06 14:48:26,720 INFO L275 CfgBuilder]: Performing block encoding [2022-04-06 14:48:26,725 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-06 14:48:26,725 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-06 14:48:26,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:48:26 BoogieIcfgContainer [2022-04-06 14:48:26,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-06 14:48:26,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-06 14:48:26,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-06 14:48:26,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-06 14:48:26,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.04 02:48:25" (1/3) ... [2022-04-06 14:48:26,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@add1e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:48:26, skipping insertion in model container [2022-04-06 14:48:26,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.04 02:48:25" (2/3) ... [2022-04-06 14:48:26,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@add1e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.04 02:48:26, skipping insertion in model container [2022-04-06 14:48:26,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.04 02:48:26" (3/3) ... [2022-04-06 14:48:26,735 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2022-04-06 14:48:26,739 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-04-06 14:48:26,740 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-06 14:48:26,773 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-06 14:48:26,778 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, 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 [2022-04-06 14:48:26,778 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-06 14:48:26,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-06 14:48:26,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-04-06 14:48:26,800 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:48:26,801 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:48:26,801 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:48:26,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:48:26,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1054632774, now seen corresponding path program 1 times [2022-04-06 14:48:26,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:26,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1178038765] [2022-04-06 14:48:26,822 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:48:26,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1054632774, now seen corresponding path program 2 times [2022-04-06 14:48:26,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:48:26,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974296387] [2022-04-06 14:48:26,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:48:26,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:48:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:27,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:48:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:27,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:27,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:48:27,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974296387] [2022-04-06 14:48:27,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974296387] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:48:27,705 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:48:27,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-04-06 14:48:27,709 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:48:27,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1178038765] [2022-04-06 14:48:27,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1178038765] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:48:27,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:48:27,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-04-06 14:48:27,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071146348] [2022-04-06 14:48:27,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:48:27,715 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-04-06 14:48:27,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:27,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-04-06 14:48:27,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-04-06 14:48:27,748 INFO L87 Difference]: Start difference. First operand has 55 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:28,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:48:28,520 INFO L93 Difference]: Finished difference Result 92 states and 136 transitions. [2022-04-06 14:48:28,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-04-06 14:48:28,523 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-04-06 14:48:28,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:48:28,533 INFO L225 Difference]: With dead ends: 92 [2022-04-06 14:48:28,533 INFO L226 Difference]: Without dead ends: 57 [2022-04-06 14:48:28,537 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-04-06 14:48:28,541 INFO L913 BasicCegarLoop]: 63 mSDtfsCounter, 120 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:48:28,543 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 717 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-06 14:48:28,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-04-06 14:48:28,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2022-04-06 14:48:28,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:28,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2022-04-06 14:48:28,598 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 48 [2022-04-06 14:48:28,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:48:28,599 INFO L478 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2022-04-06 14:48:28,599 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:28,599 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2022-04-06 14:48:28,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-04-06 14:48:28,600 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:48:28,601 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:48:28,601 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-06 14:48:28,601 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:48:28,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:48:28,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1470519801, now seen corresponding path program 1 times [2022-04-06 14:48:28,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:28,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [85263655] [2022-04-06 14:48:28,603 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:48:28,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1470519801, now seen corresponding path program 2 times [2022-04-06 14:48:28,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:48:28,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833754720] [2022-04-06 14:48:28,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:48:28,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:48:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:29,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:48:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:29,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:29,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:48:29,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833754720] [2022-04-06 14:48:29,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833754720] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:48:29,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984885659] [2022-04-06 14:48:29,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 14:48:29,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:29,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:48:29,033 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:48:29,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-06 14:48:29,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 14:48:29,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:48:29,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 25 conjunts are in the unsatisfiable core [2022-04-06 14:48:29,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:48:29,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:29,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:48:30,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:30,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984885659] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:48:30,435 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:48:30,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14, 14] total 32 [2022-04-06 14:48:30,436 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:48:30,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [85263655] [2022-04-06 14:48:30,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [85263655] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:48:30,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:48:30,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-04-06 14:48:30,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559777638] [2022-04-06 14:48:30,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:48:30,440 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-04-06 14:48:30,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:30,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-04-06 14:48:30,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=751, Unknown=0, NotChecked=0, Total=992 [2022-04-06 14:48:30,442 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:30,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:48:30,963 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2022-04-06 14:48:30,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-04-06 14:48:30,963 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-04-06 14:48:30,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:48:30,964 INFO L225 Difference]: With dead ends: 65 [2022-04-06 14:48:30,964 INFO L226 Difference]: Without dead ends: 62 [2022-04-06 14:48:30,965 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=358, Invalid=1202, Unknown=0, NotChecked=0, Total=1560 [2022-04-06 14:48:30,966 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 50 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:48:30,967 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 239 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-06 14:48:30,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-04-06 14:48:30,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2022-04-06 14:48:30,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:30,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2022-04-06 14:48:30,978 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 53 [2022-04-06 14:48:30,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:48:30,979 INFO L478 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2022-04-06 14:48:30,979 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2022-04-06 14:48:30,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-04-06 14:48:30,980 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:48:30,980 INFO L499 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:48:31,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-06 14:48:31,199 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:31,200 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:48:31,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:48:31,200 INFO L85 PathProgramCache]: Analyzing trace with hash 412615706, now seen corresponding path program 3 times [2022-04-06 14:48:31,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:31,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1902208579] [2022-04-06 14:48:31,201 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:48:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash 412615706, now seen corresponding path program 4 times [2022-04-06 14:48:31,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:48:31,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218020196] [2022-04-06 14:48:31,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:48:31,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:48:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:31,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:48:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:31,622 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:31,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:48:31,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218020196] [2022-04-06 14:48:31,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218020196] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:48:31,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48671663] [2022-04-06 14:48:31,623 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 14:48:31,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:31,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:48:31,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:48:31,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-06 14:48:31,857 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 14:48:31,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:48:31,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 27 conjunts are in the unsatisfiable core [2022-04-06 14:48:31,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:48:32,119 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:32,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:48:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:32,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48671663] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:48:32,592 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:48:32,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 34 [2022-04-06 14:48:32,592 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:48:32,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1902208579] [2022-04-06 14:48:32,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1902208579] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:48:32,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:48:32,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-04-06 14:48:32,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715832582] [2022-04-06 14:48:32,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:48:32,593 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-04-06 14:48:32,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:32,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-04-06 14:48:32,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2022-04-06 14:48:32,595 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:33,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:48:33,158 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2022-04-06 14:48:33,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-06 14:48:33,159 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2022-04-06 14:48:33,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:48:33,160 INFO L225 Difference]: With dead ends: 70 [2022-04-06 14:48:33,160 INFO L226 Difference]: Without dead ends: 67 [2022-04-06 14:48:33,161 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=413, Invalid=1393, Unknown=0, NotChecked=0, Total=1806 [2022-04-06 14:48:33,162 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 53 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:48:33,162 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 292 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-04-06 14:48:33,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-04-06 14:48:33,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2022-04-06 14:48:33,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 60 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:33,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2022-04-06 14:48:33,173 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 58 [2022-04-06 14:48:33,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:48:33,173 INFO L478 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2022-04-06 14:48:33,173 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:33,173 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2022-04-06 14:48:33,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-04-06 14:48:33,174 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:48:33,175 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:48:33,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-06 14:48:33,387 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-06 14:48:33,387 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:48:33,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:48:33,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1771010407, now seen corresponding path program 5 times [2022-04-06 14:48:33,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:33,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1144575347] [2022-04-06 14:48:33,389 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:48:33,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1771010407, now seen corresponding path program 6 times [2022-04-06 14:48:33,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:48:33,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378922378] [2022-04-06 14:48:33,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:48:33,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:48:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:33,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:48:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:33,772 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:33,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:48:33,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378922378] [2022-04-06 14:48:33,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378922378] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:48:33,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327504510] [2022-04-06 14:48:33,773 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-06 14:48:33,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:33,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:48:33,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:48:33,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-06 14:48:36,646 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-04-06 14:48:36,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:48:36,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 29 conjunts are in the unsatisfiable core [2022-04-06 14:48:36,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:48:36,952 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:36,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:48:37,499 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:37,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327504510] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:48:37,499 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:48:37,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 16, 16] total 36 [2022-04-06 14:48:37,500 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:48:37,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1144575347] [2022-04-06 14:48:37,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1144575347] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:48:37,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:48:37,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-04-06 14:48:37,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828343859] [2022-04-06 14:48:37,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:48:37,501 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-04-06 14:48:37,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:37,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-04-06 14:48:37,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-04-06 14:48:37,502 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:38,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:48:38,215 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2022-04-06 14:48:38,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-04-06 14:48:38,216 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-04-06 14:48:38,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:48:38,217 INFO L225 Difference]: With dead ends: 75 [2022-04-06 14:48:38,217 INFO L226 Difference]: Without dead ends: 72 [2022-04-06 14:48:38,218 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-04-06 14:48:38,218 INFO L913 BasicCegarLoop]: 23 mSDtfsCounter, 55 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:48:38,219 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 328 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-06 14:48:38,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-04-06 14:48:38,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2022-04-06 14:48:38,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:38,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2022-04-06 14:48:38,242 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 63 [2022-04-06 14:48:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:48:38,243 INFO L478 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2022-04-06 14:48:38,245 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:38,245 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2022-04-06 14:48:38,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-04-06 14:48:38,246 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:48:38,246 INFO L499 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:48:38,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-06 14:48:38,451 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:38,451 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:48:38,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:48:38,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1370440838, now seen corresponding path program 7 times [2022-04-06 14:48:38,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:38,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1903629074] [2022-04-06 14:48:38,452 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:48:38,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1370440838, now seen corresponding path program 8 times [2022-04-06 14:48:38,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:48:38,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559290255] [2022-04-06 14:48:38,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:48:38,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:48:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:38,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:48:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:38,871 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:38,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:48:38,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559290255] [2022-04-06 14:48:38,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559290255] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:48:38,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006796560] [2022-04-06 14:48:38,872 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 14:48:38,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:38,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:48:38,873 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:48:38,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-06 14:48:39,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 14:48:39,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:48:39,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 31 conjunts are in the unsatisfiable core [2022-04-06 14:48:39,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:48:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:39,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:48:40,028 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:40,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006796560] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:48:40,029 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:48:40,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17, 17] total 38 [2022-04-06 14:48:40,029 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:48:40,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1903629074] [2022-04-06 14:48:40,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1903629074] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:48:40,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:48:40,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-04-06 14:48:40,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128135405] [2022-04-06 14:48:40,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:48:40,030 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-04-06 14:48:40,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:40,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-04-06 14:48:40,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-04-06 14:48:40,032 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:40,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:48:40,750 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2022-04-06 14:48:40,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-04-06 14:48:40,751 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-04-06 14:48:40,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:48:40,752 INFO L225 Difference]: With dead ends: 80 [2022-04-06 14:48:40,752 INFO L226 Difference]: Without dead ends: 77 [2022-04-06 14:48:40,753 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=535, Invalid=1817, Unknown=0, NotChecked=0, Total=2352 [2022-04-06 14:48:40,754 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 57 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:48:40,754 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 352 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-06 14:48:40,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-04-06 14:48:40,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2022-04-06 14:48:40,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:40,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2022-04-06 14:48:40,768 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 68 [2022-04-06 14:48:40,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:48:40,768 INFO L478 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2022-04-06 14:48:40,768 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:40,768 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2022-04-06 14:48:40,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-04-06 14:48:40,769 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:48:40,769 INFO L499 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:48:40,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-06 14:48:40,970 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:40,970 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:48:40,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:48:40,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1100780743, now seen corresponding path program 9 times [2022-04-06 14:48:40,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:40,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [76506480] [2022-04-06 14:48:40,971 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:48:40,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1100780743, now seen corresponding path program 10 times [2022-04-06 14:48:40,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:48:40,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878375301] [2022-04-06 14:48:40,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:48:40,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:48:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:48:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:41,403 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:41,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:48:41,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878375301] [2022-04-06 14:48:41,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878375301] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:48:41,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472104284] [2022-04-06 14:48:41,404 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 14:48:41,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:41,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:48:41,405 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:48:41,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-06 14:48:41,639 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 14:48:41,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:48:41,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 33 conjunts are in the unsatisfiable core [2022-04-06 14:48:41,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:48:41,919 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:41,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:48:42,502 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:42,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472104284] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:48:42,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:48:42,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18, 18] total 40 [2022-04-06 14:48:42,503 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:48:42,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [76506480] [2022-04-06 14:48:42,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [76506480] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:48:42,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:48:42,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-04-06 14:48:42,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411837465] [2022-04-06 14:48:42,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:48:42,504 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-04-06 14:48:42,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:42,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-04-06 14:48:42,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-04-06 14:48:42,505 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:43,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:48:43,225 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2022-04-06 14:48:43,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-04-06 14:48:43,226 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-04-06 14:48:43,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:48:43,227 INFO L225 Difference]: With dead ends: 85 [2022-04-06 14:48:43,227 INFO L226 Difference]: Without dead ends: 82 [2022-04-06 14:48:43,228 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=602, Invalid=2050, Unknown=0, NotChecked=0, Total=2652 [2022-04-06 14:48:43,229 INFO L913 BasicCegarLoop]: 25 mSDtfsCounter, 59 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:48:43,229 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 406 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-04-06 14:48:43,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-04-06 14:48:43,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2022-04-06 14:48:43,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.0133333333333334) internal successors, (76), 75 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:43,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2022-04-06 14:48:43,239 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 73 [2022-04-06 14:48:43,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:48:43,239 INFO L478 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2022-04-06 14:48:43,239 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:43,240 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2022-04-06 14:48:43,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-04-06 14:48:43,240 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:48:43,241 INFO L499 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:48:43,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-06 14:48:43,446 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:43,447 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:48:43,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:48:43,447 INFO L85 PathProgramCache]: Analyzing trace with hash -812401958, now seen corresponding path program 11 times [2022-04-06 14:48:43,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:43,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [287351919] [2022-04-06 14:48:43,448 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:48:43,448 INFO L85 PathProgramCache]: Analyzing trace with hash -812401958, now seen corresponding path program 12 times [2022-04-06 14:48:43,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:48:43,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7212764] [2022-04-06 14:48:43,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:48:43,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:48:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:43,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:48:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:43,878 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:43,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:48:43,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7212764] [2022-04-06 14:48:43,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7212764] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:48:43,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088353628] [2022-04-06 14:48:43,879 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-06 14:48:43,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:43,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:48:43,883 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:48:43,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-04-06 14:48:44,397 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-06 14:48:44,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:48:44,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 34 conjunts are in the unsatisfiable core [2022-04-06 14:48:44,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:48:45,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:48:45,088 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 14:48:45,089 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 22 [2022-04-06 14:48:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 15 proven. 23 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-04-06 14:48:45,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:48:47,331 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-04-06 14:48:47,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088353628] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:48:47,331 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:48:47,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 9, 9] total 38 [2022-04-06 14:48:47,332 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:48:47,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [287351919] [2022-04-06 14:48:47,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [287351919] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:48:47,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:48:47,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-04-06 14:48:47,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94995034] [2022-04-06 14:48:47,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:48:47,332 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-04-06 14:48:47,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:47,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-04-06 14:48:47,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1172, Unknown=0, NotChecked=0, Total=1406 [2022-04-06 14:48:47,334 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand has 24 states, 24 states have (on average 3.125) internal successors, (75), 23 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:48,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:48:48,227 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2022-04-06 14:48:48,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-04-06 14:48:48,227 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.125) internal successors, (75), 23 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-04-06 14:48:48,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:48:48,228 INFO L225 Difference]: With dead ends: 90 [2022-04-06 14:48:48,228 INFO L226 Difference]: Without dead ends: 87 [2022-04-06 14:48:48,229 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=370, Invalid=2180, Unknown=0, NotChecked=0, Total=2550 [2022-04-06 14:48:48,230 INFO L913 BasicCegarLoop]: 26 mSDtfsCounter, 58 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:48:48,230 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 438 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-06 14:48:48,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-04-06 14:48:48,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2022-04-06 14:48:48,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.0125) internal successors, (81), 80 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:48,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2022-04-06 14:48:48,242 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 78 [2022-04-06 14:48:48,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:48:48,242 INFO L478 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2022-04-06 14:48:48,242 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.125) internal successors, (75), 23 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:48,242 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2022-04-06 14:48:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-04-06 14:48:48,243 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:48:48,244 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:48:48,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-04-06 14:48:48,467 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:48,468 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:48:48,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:48:48,468 INFO L85 PathProgramCache]: Analyzing trace with hash -570882087, now seen corresponding path program 13 times [2022-04-06 14:48:48,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:48,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [529219382] [2022-04-06 14:48:48,469 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:48:48,469 INFO L85 PathProgramCache]: Analyzing trace with hash -570882087, now seen corresponding path program 14 times [2022-04-06 14:48:48,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:48:48,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658593844] [2022-04-06 14:48:48,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:48:48,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:48:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:48,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:48:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:48,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:48:48,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658593844] [2022-04-06 14:48:48,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658593844] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:48:48,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912625441] [2022-04-06 14:48:48,982 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 14:48:48,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:48,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:48:48,983 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:48:48,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-04-06 14:48:49,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 14:48:49,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:48:49,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 37 conjunts are in the unsatisfiable core [2022-04-06 14:48:49,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:48:49,687 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:49,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:48:50,461 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:50,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912625441] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:48:50,461 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:48:50,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 20, 20] total 44 [2022-04-06 14:48:50,462 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:48:50,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [529219382] [2022-04-06 14:48:50,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [529219382] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:48:50,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:48:50,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-04-06 14:48:50,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030061110] [2022-04-06 14:48:50,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:48:50,462 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-04-06 14:48:50,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:50,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-04-06 14:48:50,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=1435, Unknown=0, NotChecked=0, Total=1892 [2022-04-06 14:48:50,463 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand has 25 states, 25 states have (on average 3.2) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:51,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:48:51,311 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2022-04-06 14:48:51,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-04-06 14:48:51,312 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.2) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-04-06 14:48:51,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:48:51,312 INFO L225 Difference]: With dead ends: 95 [2022-04-06 14:48:51,312 INFO L226 Difference]: Without dead ends: 92 [2022-04-06 14:48:51,313 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=748, Invalid=2558, Unknown=0, NotChecked=0, Total=3306 [2022-04-06 14:48:51,314 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 62 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:48:51,314 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 478 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-06 14:48:51,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-04-06 14:48:51,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 89. [2022-04-06 14:48:51,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:51,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2022-04-06 14:48:51,325 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 83 [2022-04-06 14:48:51,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:48:51,326 INFO L478 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2022-04-06 14:48:51,326 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.2) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:51,326 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2022-04-06 14:48:51,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-04-06 14:48:51,327 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:48:51,331 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:48:51,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-04-06 14:48:51,535 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:51,536 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:48:51,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:48:51,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1780941370, now seen corresponding path program 15 times [2022-04-06 14:48:51,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:51,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1562367317] [2022-04-06 14:48:51,537 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:48:51,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1780941370, now seen corresponding path program 16 times [2022-04-06 14:48:51,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:48:51,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476131310] [2022-04-06 14:48:51,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:48:51,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:48:51,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:48:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:52,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:48:52,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476131310] [2022-04-06 14:48:52,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476131310] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:48:52,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497372533] [2022-04-06 14:48:52,021 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 14:48:52,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:52,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:48:52,023 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:48:52,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-04-06 14:48:52,303 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 14:48:52,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:48:52,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 39 conjunts are in the unsatisfiable core [2022-04-06 14:48:52,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:48:52,635 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:52,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:48:53,508 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:53,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497372533] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:48:53,509 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:48:53,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 21, 21] total 46 [2022-04-06 14:48:53,509 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:48:53,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1562367317] [2022-04-06 14:48:53,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1562367317] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:48:53,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:48:53,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-04-06 14:48:53,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51866678] [2022-04-06 14:48:53,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:48:53,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-04-06 14:48:53,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:53,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-04-06 14:48:53,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=500, Invalid=1570, Unknown=0, NotChecked=0, Total=2070 [2022-04-06 14:48:53,511 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:54,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:48:54,411 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2022-04-06 14:48:54,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-04-06 14:48:54,411 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-04-06 14:48:54,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:48:54,412 INFO L225 Difference]: With dead ends: 100 [2022-04-06 14:48:54,412 INFO L226 Difference]: Without dead ends: 97 [2022-04-06 14:48:54,413 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=827, Invalid=2833, Unknown=0, NotChecked=0, Total=3660 [2022-04-06 14:48:54,413 INFO L913 BasicCegarLoop]: 28 mSDtfsCounter, 62 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:48:54,413 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 526 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-06 14:48:54,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-04-06 14:48:54,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 94. [2022-04-06 14:48:54,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 90 states have (on average 1.011111111111111) internal successors, (91), 90 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:54,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2022-04-06 14:48:54,424 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 88 [2022-04-06 14:48:54,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:48:54,424 INFO L478 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2022-04-06 14:48:54,425 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:54,425 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2022-04-06 14:48:54,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-04-06 14:48:54,426 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:48:54,426 INFO L499 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:48:54,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-04-06 14:48:54,631 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-04-06 14:48:54,632 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:48:54,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:48:54,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1289003911, now seen corresponding path program 17 times [2022-04-06 14:48:54,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:54,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2134612136] [2022-04-06 14:48:54,632 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:48:54,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1289003911, now seen corresponding path program 18 times [2022-04-06 14:48:54,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:48:54,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787563394] [2022-04-06 14:48:54,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:48:54,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:48:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:55,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:48:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:48:55,135 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:48:55,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:48:55,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787563394] [2022-04-06 14:48:55,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787563394] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:48:55,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051462124] [2022-04-06 14:48:55,135 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-06 14:48:55,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:48:55,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:48:55,136 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:48:55,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-04-06 14:48:55,990 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-06 14:48:55,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:48:55,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 32 conjunts are in the unsatisfiable core [2022-04-06 14:48:55,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:48:56,438 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 14:48:56,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-04-06 14:48:56,589 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 24 proven. 35 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-04-06 14:48:56,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:48:58,743 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-04-06 14:48:58,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051462124] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:48:58,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:48:58,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 9, 9] total 41 [2022-04-06 14:48:58,744 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:48:58,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2134612136] [2022-04-06 14:48:58,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2134612136] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:48:58,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:48:58,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-04-06 14:48:58,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896528184] [2022-04-06 14:48:58,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:48:58,745 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-04-06 14:48:58,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:58,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-04-06 14:48:58,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1427, Unknown=0, NotChecked=0, Total=1640 [2022-04-06 14:48:58,746 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 26 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:59,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:48:59,713 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2022-04-06 14:48:59,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-04-06 14:48:59,713 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 26 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-04-06 14:48:59,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:48:59,714 INFO L225 Difference]: With dead ends: 105 [2022-04-06 14:48:59,714 INFO L226 Difference]: Without dead ends: 102 [2022-04-06 14:48:59,715 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=353, Invalid=2839, Unknown=0, NotChecked=0, Total=3192 [2022-04-06 14:48:59,715 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 66 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-04-06 14:48:59,715 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 570 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-04-06 14:48:59,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-04-06 14:48:59,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 99. [2022-04-06 14:48:59,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:59,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2022-04-06 14:48:59,727 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 93 [2022-04-06 14:48:59,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:48:59,728 INFO L478 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2022-04-06 14:48:59,728 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 26 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:48:59,728 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2022-04-06 14:48:59,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-04-06 14:48:59,734 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:48:59,734 INFO L499 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:48:59,756 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-04-06 14:48:59,947 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-04-06 14:48:59,947 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:48:59,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:48:59,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1817219482, now seen corresponding path program 19 times [2022-04-06 14:48:59,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:48:59,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [978500769] [2022-04-06 14:48:59,948 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:48:59,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1817219482, now seen corresponding path program 20 times [2022-04-06 14:48:59,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:48:59,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174506143] [2022-04-06 14:48:59,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:48:59,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:49:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:00,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:49:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:00,492 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:00,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:49:00,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174506143] [2022-04-06 14:49:00,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174506143] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:49:00,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978651698] [2022-04-06 14:49:00,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 14:49:00,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:00,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:49:00,496 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:49:00,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-04-06 14:49:00,997 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 14:49:00,997 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:49:01,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 43 conjunts are in the unsatisfiable core [2022-04-06 14:49:01,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:49:01,327 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:01,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:49:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:02,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1978651698] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:49:02,259 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:49:02,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 23, 23] total 50 [2022-04-06 14:49:02,259 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:49:02,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [978500769] [2022-04-06 14:49:02,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [978500769] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:49:02,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:49:02,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-04-06 14:49:02,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281016692] [2022-04-06 14:49:02,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:49:02,259 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-04-06 14:49:02,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:02,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-04-06 14:49:02,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=592, Invalid=1858, Unknown=0, NotChecked=0, Total=2450 [2022-04-06 14:49:02,261 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand has 28 states, 28 states have (on average 3.392857142857143) internal successors, (95), 27 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:03,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:49:03,227 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2022-04-06 14:49:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-04-06 14:49:03,228 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.392857142857143) internal successors, (95), 27 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-04-06 14:49:03,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:49:03,228 INFO L225 Difference]: With dead ends: 110 [2022-04-06 14:49:03,228 INFO L226 Difference]: Without dead ends: 107 [2022-04-06 14:49:03,229 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=997, Invalid=3425, Unknown=0, NotChecked=0, Total=4422 [2022-04-06 14:49:03,230 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 69 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:49:03,230 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 616 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-04-06 14:49:03,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-04-06 14:49:03,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2022-04-06 14:49:03,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.01) internal successors, (101), 100 states have internal predecessors, (101), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:03,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2022-04-06 14:49:03,240 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 98 [2022-04-06 14:49:03,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:49:03,240 INFO L478 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2022-04-06 14:49:03,240 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.392857142857143) internal successors, (95), 27 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:03,240 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2022-04-06 14:49:03,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-04-06 14:49:03,241 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:49:03,241 INFO L499 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:49:03,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-04-06 14:49:03,441 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-04-06 14:49:03,441 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:49:03,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:49:03,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1265920281, now seen corresponding path program 21 times [2022-04-06 14:49:03,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:03,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1361872887] [2022-04-06 14:49:03,442 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:49:03,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1265920281, now seen corresponding path program 22 times [2022-04-06 14:49:03,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:49:03,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463657769] [2022-04-06 14:49:03,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:49:03,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:49:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:04,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:49:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:04,019 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:04,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:49:04,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463657769] [2022-04-06 14:49:04,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463657769] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:49:04,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740752429] [2022-04-06 14:49:04,020 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 14:49:04,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:04,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:49:04,023 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:49:04,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-04-06 14:49:04,315 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 14:49:04,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:49:04,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 45 conjunts are in the unsatisfiable core [2022-04-06 14:49:04,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:49:04,699 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:04,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:49:05,631 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:05,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740752429] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:49:05,632 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:49:05,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 24, 24] total 52 [2022-04-06 14:49:05,632 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:49:05,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1361872887] [2022-04-06 14:49:05,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1361872887] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:49:05,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:49:05,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-04-06 14:49:05,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330095591] [2022-04-06 14:49:05,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:49:05,633 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-04-06 14:49:05,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:05,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-04-06 14:49:05,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=641, Invalid=2011, Unknown=0, NotChecked=0, Total=2652 [2022-04-06 14:49:05,634 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand has 29 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:06,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:49:06,778 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2022-04-06 14:49:06,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-04-06 14:49:06,778 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2022-04-06 14:49:06,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:49:06,779 INFO L225 Difference]: With dead ends: 115 [2022-04-06 14:49:06,779 INFO L226 Difference]: Without dead ends: 112 [2022-04-06 14:49:06,780 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1088, Invalid=3742, Unknown=0, NotChecked=0, Total=4830 [2022-04-06 14:49:06,781 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 68 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-06 14:49:06,781 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 697 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-06 14:49:06,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-04-06 14:49:06,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2022-04-06 14:49:06,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 105 states have (on average 1.0095238095238095) internal successors, (106), 105 states have internal predecessors, (106), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:06,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2022-04-06 14:49:06,790 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 103 [2022-04-06 14:49:06,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:49:06,791 INFO L478 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2022-04-06 14:49:06,791 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:06,791 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2022-04-06 14:49:06,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-04-06 14:49:06,791 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:49:06,792 INFO L499 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:49:06,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-04-06 14:49:07,007 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-04-06 14:49:07,008 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:49:07,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:49:07,008 INFO L85 PathProgramCache]: Analyzing trace with hash 618031354, now seen corresponding path program 23 times [2022-04-06 14:49:07,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:07,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [696363923] [2022-04-06 14:49:07,008 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:49:07,009 INFO L85 PathProgramCache]: Analyzing trace with hash 618031354, now seen corresponding path program 24 times [2022-04-06 14:49:07,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:49:07,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577208090] [2022-04-06 14:49:07,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:49:07,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:49:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:07,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:49:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:07,570 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:07,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:49:07,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577208090] [2022-04-06 14:49:07,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577208090] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:49:07,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123345885] [2022-04-06 14:49:07,571 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-06 14:49:07,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:07,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:49:07,572 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:49:07,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-04-06 14:49:13,240 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-06 14:49:13,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:49:13,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 75 conjunts are in the unsatisfiable core [2022-04-06 14:49:13,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:49:14,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:49:14,549 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 14:49:14,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 18 [2022-04-06 14:49:14,705 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 33 proven. 47 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-04-06 14:49:14,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:49:18,652 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-04-06 14:49:18,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123345885] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:49:18,652 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:49:18,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 21, 20] total 67 [2022-04-06 14:49:18,652 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:49:18,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [696363923] [2022-04-06 14:49:18,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [696363923] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:49:18,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:49:18,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-04-06 14:49:18,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508071152] [2022-04-06 14:49:18,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:49:18,653 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-04-06 14:49:18,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:18,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-04-06 14:49:18,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=3836, Unknown=0, NotChecked=0, Total=4422 [2022-04-06 14:49:18,654 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand has 30 states, 30 states have (on average 3.5) internal successors, (105), 29 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:20,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:49:20,119 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2022-04-06 14:49:20,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-04-06 14:49:20,120 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 29 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-04-06 14:49:20,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:49:20,121 INFO L225 Difference]: With dead ends: 120 [2022-04-06 14:49:20,121 INFO L226 Difference]: Without dead ends: 117 [2022-04-06 14:49:20,122 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 177 SyntacticMatches, 4 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1351 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=754, Invalid=6556, Unknown=0, NotChecked=0, Total=7310 [2022-04-06 14:49:20,123 INFO L913 BasicCegarLoop]: 32 mSDtfsCounter, 70 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-04-06 14:49:20,123 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 701 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-04-06 14:49:20,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-04-06 14:49:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 114. [2022-04-06 14:49:20,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 110 states have (on average 1.009090909090909) internal successors, (111), 110 states have internal predecessors, (111), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:20,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2022-04-06 14:49:20,134 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 108 [2022-04-06 14:49:20,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:49:20,135 INFO L478 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2022-04-06 14:49:20,135 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 29 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:20,135 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2022-04-06 14:49:20,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-04-06 14:49:20,135 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:49:20,136 INFO L499 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:49:20,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-04-06 14:49:20,343 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-04-06 14:49:20,343 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:49:20,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:49:20,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1546768967, now seen corresponding path program 25 times [2022-04-06 14:49:20,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:20,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [526101593] [2022-04-06 14:49:20,344 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:49:20,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1546768967, now seen corresponding path program 26 times [2022-04-06 14:49:20,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:49:20,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163271580] [2022-04-06 14:49:20,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:49:20,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:49:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:20,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:49:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:20,941 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:20,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:49:20,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163271580] [2022-04-06 14:49:20,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163271580] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:49:20,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535893918] [2022-04-06 14:49:20,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 14:49:20,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:20,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:49:20,943 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:49:20,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-04-06 14:49:21,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 14:49:21,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:49:21,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 49 conjunts are in the unsatisfiable core [2022-04-06 14:49:21,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:49:21,876 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:21,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:49:22,911 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:22,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535893918] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:49:22,911 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:49:22,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 26, 26] total 56 [2022-04-06 14:49:22,912 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:49:22,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [526101593] [2022-04-06 14:49:22,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [526101593] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:49:22,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:49:22,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-04-06 14:49:22,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453805144] [2022-04-06 14:49:22,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:49:22,912 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-04-06 14:49:22,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:22,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-04-06 14:49:22,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=739, Invalid=2341, Unknown=0, NotChecked=0, Total=3080 [2022-04-06 14:49:22,914 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:24,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:49:24,186 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2022-04-06 14:49:24,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-04-06 14:49:24,187 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-04-06 14:49:24,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:49:24,187 INFO L225 Difference]: With dead ends: 125 [2022-04-06 14:49:24,187 INFO L226 Difference]: Without dead ends: 122 [2022-04-06 14:49:24,188 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 202 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1270, Invalid=4430, Unknown=0, NotChecked=0, Total=5700 [2022-04-06 14:49:24,189 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 73 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-04-06 14:49:24,189 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 781 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-04-06 14:49:24,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-04-06 14:49:24,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 119. [2022-04-06 14:49:24,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 115 states have (on average 1.008695652173913) internal successors, (116), 115 states have internal predecessors, (116), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:24,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2022-04-06 14:49:24,201 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 113 [2022-04-06 14:49:24,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:49:24,202 INFO L478 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2022-04-06 14:49:24,202 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2022-04-06 14:49:24,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-04-06 14:49:24,202 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:49:24,203 INFO L499 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:49:24,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-04-06 14:49:24,411 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-04-06 14:49:24,411 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:49:24,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:49:24,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1560377254, now seen corresponding path program 27 times [2022-04-06 14:49:24,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:24,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [660944677] [2022-04-06 14:49:24,413 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:49:24,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1560377254, now seen corresponding path program 28 times [2022-04-06 14:49:24,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:49:24,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678554048] [2022-04-06 14:49:24,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:49:24,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:49:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:25,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:49:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:25,049 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:25,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:49:25,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678554048] [2022-04-06 14:49:25,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678554048] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:49:25,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211708353] [2022-04-06 14:49:25,049 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 14:49:25,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:25,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:49:25,050 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:49:25,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-04-06 14:49:25,435 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 14:49:25,436 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:49:25,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 51 conjunts are in the unsatisfiable core [2022-04-06 14:49:25,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:49:25,880 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:25,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:49:26,963 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:26,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211708353] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:49:26,963 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:49:26,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 27, 27] total 58 [2022-04-06 14:49:26,963 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:49:26,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [660944677] [2022-04-06 14:49:26,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [660944677] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:49:26,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:49:26,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-04-06 14:49:26,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797877163] [2022-04-06 14:49:26,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:49:26,964 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-04-06 14:49:26,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:26,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-04-06 14:49:26,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=785, Invalid=2521, Unknown=0, NotChecked=0, Total=3306 [2022-04-06 14:49:26,965 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand has 32 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:28,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:49:28,354 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2022-04-06 14:49:28,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-04-06 14:49:28,355 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-04-06 14:49:28,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:49:28,355 INFO L225 Difference]: With dead ends: 130 [2022-04-06 14:49:28,355 INFO L226 Difference]: Without dead ends: 127 [2022-04-06 14:49:28,356 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1355, Invalid=4807, Unknown=0, NotChecked=0, Total=6162 [2022-04-06 14:49:28,357 INFO L913 BasicCegarLoop]: 34 mSDtfsCounter, 73 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:49:28,357 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 865 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-06 14:49:28,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-04-06 14:49:28,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 124. [2022-04-06 14:49:28,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 120 states have (on average 1.0083333333333333) internal successors, (121), 120 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:28,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2022-04-06 14:49:28,367 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 118 [2022-04-06 14:49:28,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:49:28,367 INFO L478 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2022-04-06 14:49:28,367 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:28,367 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2022-04-06 14:49:28,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-04-06 14:49:28,368 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:49:28,368 INFO L499 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:49:28,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-04-06 14:49:28,571 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:28,571 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:49:28,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:49:28,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1219668569, now seen corresponding path program 29 times [2022-04-06 14:49:28,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:28,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1901520640] [2022-04-06 14:49:28,572 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:49:28,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1219668569, now seen corresponding path program 30 times [2022-04-06 14:49:28,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:49:28,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232426719] [2022-04-06 14:49:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:49:28,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:49:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:29,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:49:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:29,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:49:29,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232426719] [2022-04-06 14:49:29,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232426719] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:49:29,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932439525] [2022-04-06 14:49:29,261 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-06 14:49:29,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:29,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:49:29,262 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:49:29,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-04-06 14:49:32,508 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-06 14:49:32,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:49:32,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 38 conjunts are in the unsatisfiable core [2022-04-06 14:49:32,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:49:33,229 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 14:49:33,229 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 26 [2022-04-06 14:49:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 59 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-04-06 14:49:33,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:49:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 101 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-04-06 14:49:35,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932439525] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:49:35,872 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:49:35,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 9, 9] total 47 [2022-04-06 14:49:35,872 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:49:35,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1901520640] [2022-04-06 14:49:35,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1901520640] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:49:35,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:49:35,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-04-06 14:49:35,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139201475] [2022-04-06 14:49:35,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:49:35,873 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-04-06 14:49:35,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:35,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-04-06 14:49:35,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1913, Unknown=0, NotChecked=0, Total=2162 [2022-04-06 14:49:35,874 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand has 33 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 32 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:37,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:49:37,417 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2022-04-06 14:49:37,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-04-06 14:49:37,418 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 32 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-04-06 14:49:37,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:49:37,419 INFO L225 Difference]: With dead ends: 135 [2022-04-06 14:49:37,419 INFO L226 Difference]: Without dead ends: 132 [2022-04-06 14:49:37,420 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=443, Invalid=4249, Unknown=0, NotChecked=0, Total=4692 [2022-04-06 14:49:37,420 INFO L913 BasicCegarLoop]: 35 mSDtfsCounter, 79 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:49:37,421 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 891 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-04-06 14:49:37,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-04-06 14:49:37,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2022-04-06 14:49:37,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 125 states have (on average 1.008) internal successors, (126), 125 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:37,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2022-04-06 14:49:37,443 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 123 [2022-04-06 14:49:37,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:49:37,443 INFO L478 AbstractCegarLoop]: Abstraction has 129 states and 129 transitions. [2022-04-06 14:49:37,443 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 32 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:37,444 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 129 transitions. [2022-04-06 14:49:37,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-04-06 14:49:37,444 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:49:37,444 INFO L499 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:49:37,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-04-06 14:49:37,657 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-04-06 14:49:37,657 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:49:37,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:49:37,658 INFO L85 PathProgramCache]: Analyzing trace with hash 378466234, now seen corresponding path program 31 times [2022-04-06 14:49:37,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:37,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1260247782] [2022-04-06 14:49:37,658 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:49:37,659 INFO L85 PathProgramCache]: Analyzing trace with hash 378466234, now seen corresponding path program 32 times [2022-04-06 14:49:37,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:49:37,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989122114] [2022-04-06 14:49:37,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:49:37,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:49:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:38,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:49:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:38,340 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:38,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:49:38,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989122114] [2022-04-06 14:49:38,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989122114] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:49:38,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947655605] [2022-04-06 14:49:38,341 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 14:49:38,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:38,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:49:38,342 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:49:38,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-04-06 14:49:38,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 14:49:38,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:49:38,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 55 conjunts are in the unsatisfiable core [2022-04-06 14:49:38,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:49:39,138 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:39,139 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:49:40,336 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:40,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947655605] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:49:40,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:49:40,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 29, 29] total 62 [2022-04-06 14:49:40,336 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:49:40,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1260247782] [2022-04-06 14:49:40,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1260247782] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:49:40,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:49:40,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-04-06 14:49:40,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494354451] [2022-04-06 14:49:40,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:49:40,337 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-04-06 14:49:40,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:40,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-04-06 14:49:40,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=2911, Unknown=0, NotChecked=0, Total=3782 [2022-04-06 14:49:40,338 INFO L87 Difference]: Start difference. First operand 129 states and 129 transitions. Second operand has 34 states, 34 states have (on average 3.676470588235294) internal successors, (125), 33 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:41,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:49:41,910 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2022-04-06 14:49:41,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-04-06 14:49:41,911 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.676470588235294) internal successors, (125), 33 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2022-04-06 14:49:41,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:49:41,911 INFO L225 Difference]: With dead ends: 140 [2022-04-06 14:49:41,911 INFO L226 Difference]: Without dead ends: 137 [2022-04-06 14:49:41,912 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1513, Invalid=5627, Unknown=0, NotChecked=0, Total=7140 [2022-04-06 14:49:41,912 INFO L913 BasicCegarLoop]: 36 mSDtfsCounter, 78 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 2849 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 2899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-04-06 14:49:41,913 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 958 Invalid, 2899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2849 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-04-06 14:49:41,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-04-06 14:49:41,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2022-04-06 14:49:41,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 130 states have (on average 1.0076923076923077) internal successors, (131), 130 states have internal predecessors, (131), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:41,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2022-04-06 14:49:41,926 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 128 [2022-04-06 14:49:41,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:49:41,926 INFO L478 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2022-04-06 14:49:41,926 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.676470588235294) internal successors, (125), 33 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:41,927 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2022-04-06 14:49:41,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-04-06 14:49:41,927 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:49:41,927 INFO L499 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:49:41,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-04-06 14:49:42,144 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-04-06 14:49:42,144 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:49:42,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:49:42,144 INFO L85 PathProgramCache]: Analyzing trace with hash -165945607, now seen corresponding path program 33 times [2022-04-06 14:49:42,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:42,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1228595182] [2022-04-06 14:49:42,145 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:49:42,145 INFO L85 PathProgramCache]: Analyzing trace with hash -165945607, now seen corresponding path program 34 times [2022-04-06 14:49:42,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:49:42,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454080935] [2022-04-06 14:49:42,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:49:42,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:49:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:49:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:42,812 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:42,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:49:42,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454080935] [2022-04-06 14:49:42,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454080935] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:49:42,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406816784] [2022-04-06 14:49:42,813 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 14:49:42,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:42,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:49:42,815 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:49:42,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-04-06 14:49:43,183 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 14:49:43,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:49:43,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 57 conjunts are in the unsatisfiable core [2022-04-06 14:49:43,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:49:43,592 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:43,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:49:44,845 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:44,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406816784] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:49:44,846 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:49:44,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 30, 30] total 64 [2022-04-06 14:49:44,846 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:49:44,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1228595182] [2022-04-06 14:49:44,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1228595182] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:49:44,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:49:44,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-04-06 14:49:44,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180492411] [2022-04-06 14:49:44,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:49:44,846 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-04-06 14:49:44,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:44,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-04-06 14:49:44,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=911, Invalid=3121, Unknown=0, NotChecked=0, Total=4032 [2022-04-06 14:49:44,848 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand has 35 states, 35 states have (on average 3.7142857142857144) internal successors, (130), 34 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:46,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:49:46,536 INFO L93 Difference]: Finished difference Result 145 states and 145 transitions. [2022-04-06 14:49:46,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-04-06 14:49:46,537 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.7142857142857144) internal successors, (130), 34 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-04-06 14:49:46,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:49:46,538 INFO L225 Difference]: With dead ends: 145 [2022-04-06 14:49:46,538 INFO L226 Difference]: Without dead ends: 142 [2022-04-06 14:49:46,539 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 238 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1586, Invalid=6070, Unknown=0, NotChecked=0, Total=7656 [2022-04-06 14:49:46,540 INFO L913 BasicCegarLoop]: 37 mSDtfsCounter, 79 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 3067 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 3119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:49:46,540 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 1021 Invalid, 3119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3067 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-04-06 14:49:46,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-04-06 14:49:46,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 139. [2022-04-06 14:49:46,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 135 states have (on average 1.0074074074074073) internal successors, (136), 135 states have internal predecessors, (136), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:46,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2022-04-06 14:49:46,555 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 133 [2022-04-06 14:49:46,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:49:46,556 INFO L478 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2022-04-06 14:49:46,556 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.7142857142857144) internal successors, (130), 34 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:46,556 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2022-04-06 14:49:46,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-04-06 14:49:46,557 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:49:46,557 INFO L499 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:49:46,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-04-06 14:49:46,779 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-04-06 14:49:46,780 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:49:46,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:49:46,780 INFO L85 PathProgramCache]: Analyzing trace with hash 802004762, now seen corresponding path program 35 times [2022-04-06 14:49:46,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:46,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [155809279] [2022-04-06 14:49:46,781 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:49:46,781 INFO L85 PathProgramCache]: Analyzing trace with hash 802004762, now seen corresponding path program 36 times [2022-04-06 14:49:46,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:49:46,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206584288] [2022-04-06 14:49:46,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:49:46,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:49:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:47,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:49:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:47,461 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:47,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:49:47,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206584288] [2022-04-06 14:49:47,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206584288] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:49:47,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938236064] [2022-04-06 14:49:47,461 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-06 14:49:47,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:47,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:49:47,463 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:49:47,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-04-06 14:49:48,430 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-06 14:49:48,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:49:48,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 32 conjunts are in the unsatisfiable core [2022-04-06 14:49:48,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:49:49,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-04-06 14:49:49,268 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 14:49:49,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 22 [2022-04-06 14:49:49,439 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 51 proven. 71 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-04-06 14:49:49,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:49:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-04-06 14:49:52,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938236064] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:49:52,229 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:49:52,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 9, 9] total 50 [2022-04-06 14:49:52,229 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:49:52,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [155809279] [2022-04-06 14:49:52,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [155809279] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:49:52,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:49:52,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-04-06 14:49:52,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104368007] [2022-04-06 14:49:52,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:49:52,229 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-04-06 14:49:52,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:52,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-04-06 14:49:52,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=2120, Unknown=0, NotChecked=0, Total=2450 [2022-04-06 14:49:52,230 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand has 36 states, 36 states have (on average 3.75) internal successors, (135), 35 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:54,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:49:54,116 INFO L93 Difference]: Finished difference Result 150 states and 150 transitions. [2022-04-06 14:49:54,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-04-06 14:49:54,119 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.75) internal successors, (135), 35 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 138 [2022-04-06 14:49:54,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:49:54,120 INFO L225 Difference]: With dead ends: 150 [2022-04-06 14:49:54,120 INFO L226 Difference]: Without dead ends: 147 [2022-04-06 14:49:54,121 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=598, Invalid=4952, Unknown=0, NotChecked=0, Total=5550 [2022-04-06 14:49:54,121 INFO L913 BasicCegarLoop]: 38 mSDtfsCounter, 81 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 3399 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 3453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 3399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:49:54,122 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 1117 Invalid, 3453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 3399 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-06 14:49:54,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-04-06 14:49:54,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2022-04-06 14:49:54,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 140 states have (on average 1.0071428571428571) internal successors, (141), 140 states have internal predecessors, (141), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2022-04-06 14:49:54,139 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 138 [2022-04-06 14:49:54,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:49:54,139 INFO L478 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2022-04-06 14:49:54,139 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.75) internal successors, (135), 35 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:54,140 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2022-04-06 14:49:54,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-04-06 14:49:54,140 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:49:54,140 INFO L499 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:49:54,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-04-06 14:49:54,347 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:54,347 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:49:54,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:49:54,348 INFO L85 PathProgramCache]: Analyzing trace with hash 931384217, now seen corresponding path program 37 times [2022-04-06 14:49:54,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:54,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [287158170] [2022-04-06 14:49:54,349 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:49:54,349 INFO L85 PathProgramCache]: Analyzing trace with hash 931384217, now seen corresponding path program 38 times [2022-04-06 14:49:54,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:49:54,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723304616] [2022-04-06 14:49:54,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:49:54,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:49:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:49:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:49:55,072 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:55,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:49:55,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723304616] [2022-04-06 14:49:55,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723304616] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:49:55,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673131311] [2022-04-06 14:49:55,073 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 14:49:55,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:55,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:49:55,074 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:49:55,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-04-06 14:49:55,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 14:49:55,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:49:55,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 61 conjunts are in the unsatisfiable core [2022-04-06 14:49:55,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:49:56,011 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:56,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:49:57,401 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:49:57,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673131311] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:49:57,402 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:49:57,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 32, 32] total 68 [2022-04-06 14:49:57,402 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:49:57,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [287158170] [2022-04-06 14:49:57,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [287158170] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:49:57,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:49:57,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-04-06 14:49:57,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214086510] [2022-04-06 14:49:57,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:49:57,403 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-04-06 14:49:57,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:57,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-04-06 14:49:57,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=985, Invalid=3571, Unknown=0, NotChecked=0, Total=4556 [2022-04-06 14:49:57,404 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 36 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:59,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:49:59,280 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2022-04-06 14:49:59,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-04-06 14:49:59,281 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 36 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-04-06 14:49:59,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:49:59,282 INFO L225 Difference]: With dead ends: 155 [2022-04-06 14:49:59,282 INFO L226 Difference]: Without dead ends: 152 [2022-04-06 14:49:59,283 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1720, Invalid=7022, Unknown=0, NotChecked=0, Total=8742 [2022-04-06 14:49:59,283 INFO L913 BasicCegarLoop]: 39 mSDtfsCounter, 87 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 3472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:49:59,284 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1118 Invalid, 3472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-04-06 14:49:59,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-04-06 14:49:59,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 149. [2022-04-06 14:49:59,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 145 states have (on average 1.006896551724138) internal successors, (146), 145 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:59,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 149 transitions. [2022-04-06 14:49:59,305 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 149 transitions. Word has length 143 [2022-04-06 14:49:59,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:49:59,305 INFO L478 AbstractCegarLoop]: Abstraction has 149 states and 149 transitions. [2022-04-06 14:49:59,306 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 36 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:49:59,306 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 149 transitions. [2022-04-06 14:49:59,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-04-06 14:49:59,306 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:49:59,306 INFO L499 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:49:59,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-04-06 14:49:59,515 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:49:59,515 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:49:59,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:49:59,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2139133562, now seen corresponding path program 39 times [2022-04-06 14:49:59,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:49:59,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [60776527] [2022-04-06 14:49:59,517 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:49:59,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2139133562, now seen corresponding path program 40 times [2022-04-06 14:49:59,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:49:59,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174548785] [2022-04-06 14:49:59,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:49:59,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:49:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:50:00,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:50:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:50:00,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:50:00,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:50:00,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174548785] [2022-04-06 14:50:00,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174548785] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:50:00,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369265536] [2022-04-06 14:50:00,337 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 14:50:00,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:50:00,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:50:00,339 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:50:00,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-04-06 14:50:00,703 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 14:50:00,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:50:00,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 63 conjunts are in the unsatisfiable core [2022-04-06 14:50:00,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:50:01,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:50:01,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:50:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:50:02,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369265536] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:50:02,649 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:50:02,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 33, 33] total 70 [2022-04-06 14:50:02,650 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:50:02,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [60776527] [2022-04-06 14:50:02,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [60776527] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:50:02,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:50:02,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-04-06 14:50:02,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905949954] [2022-04-06 14:50:02,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:50:02,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-04-06 14:50:02,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:50:02,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-04-06 14:50:02,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1019, Invalid=3811, Unknown=0, NotChecked=0, Total=4830 [2022-04-06 14:50:02,652 INFO L87 Difference]: Start difference. First operand 149 states and 149 transitions. Second operand has 38 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:04,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:50:04,742 INFO L93 Difference]: Finished difference Result 160 states and 160 transitions. [2022-04-06 14:50:04,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-04-06 14:50:04,743 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-04-06 14:50:04,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:50:04,743 INFO L225 Difference]: With dead ends: 160 [2022-04-06 14:50:04,743 INFO L226 Difference]: Without dead ends: 157 [2022-04-06 14:50:04,744 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1781, Invalid=7531, Unknown=0, NotChecked=0, Total=9312 [2022-04-06 14:50:04,744 INFO L913 BasicCegarLoop]: 40 mSDtfsCounter, 87 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 3827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:50:04,745 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1222 Invalid, 3827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-04-06 14:50:04,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-04-06 14:50:04,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2022-04-06 14:50:04,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 150 states have (on average 1.0066666666666666) internal successors, (151), 150 states have internal predecessors, (151), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:04,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2022-04-06 14:50:04,761 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 148 [2022-04-06 14:50:04,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:50:04,761 INFO L478 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2022-04-06 14:50:04,761 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:04,761 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2022-04-06 14:50:04,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-04-06 14:50:04,762 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:50:04,762 INFO L499 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:50:04,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-04-06 14:50:04,962 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-04-06 14:50:04,962 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:50:04,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:50:04,963 INFO L85 PathProgramCache]: Analyzing trace with hash 132411449, now seen corresponding path program 41 times [2022-04-06 14:50:04,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:50:04,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [372260484] [2022-04-06 14:50:04,964 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:50:04,964 INFO L85 PathProgramCache]: Analyzing trace with hash 132411449, now seen corresponding path program 42 times [2022-04-06 14:50:04,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:50:04,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143141251] [2022-04-06 14:50:04,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:50:04,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:50:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:50:05,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:50:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:50:05,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 1113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:50:05,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:50:05,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143141251] [2022-04-06 14:50:05,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143141251] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:50:05,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909143521] [2022-04-06 14:50:05,803 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-06 14:50:05,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:50:05,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:50:05,804 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:50:05,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-04-06 14:50:07,251 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-06 14:50:07,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:50:07,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 38 conjunts are in the unsatisfiable core [2022-04-06 14:50:07,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:50:07,894 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 14:50:07,895 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-04-06 14:50:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 60 proven. 83 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-04-06 14:50:08,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:50:10,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-04-06 14:50:10,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909143521] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:50:10,933 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:50:10,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 9, 9] total 53 [2022-04-06 14:50:10,933 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:50:10,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [372260484] [2022-04-06 14:50:10,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [372260484] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:50:10,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:50:10,934 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-04-06 14:50:10,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141161740] [2022-04-06 14:50:10,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:50:10,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-04-06 14:50:10,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:50:10,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-04-06 14:50:10,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2471, Unknown=0, NotChecked=0, Total=2756 [2022-04-06 14:50:10,935 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand has 39 states, 39 states have (on average 3.8461538461538463) internal successors, (150), 38 states have internal predecessors, (150), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:13,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:50:13,181 INFO L93 Difference]: Finished difference Result 165 states and 165 transitions. [2022-04-06 14:50:13,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-04-06 14:50:13,183 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.8461538461538463) internal successors, (150), 38 states have internal predecessors, (150), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-04-06 14:50:13,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:50:13,183 INFO L225 Difference]: With dead ends: 165 [2022-04-06 14:50:13,184 INFO L226 Difference]: Without dead ends: 162 [2022-04-06 14:50:13,184 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=533, Invalid=5947, Unknown=0, NotChecked=0, Total=6480 [2022-04-06 14:50:13,185 INFO L913 BasicCegarLoop]: 41 mSDtfsCounter, 91 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 4017 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 4077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 4017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:50:13,185 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 1287 Invalid, 4077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 4017 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-06 14:50:13,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-04-06 14:50:13,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 159. [2022-04-06 14:50:13,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 155 states have (on average 1.0064516129032257) internal successors, (156), 155 states have internal predecessors, (156), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:13,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 159 transitions. [2022-04-06 14:50:13,200 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 159 transitions. Word has length 153 [2022-04-06 14:50:13,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:50:13,200 INFO L478 AbstractCegarLoop]: Abstraction has 159 states and 159 transitions. [2022-04-06 14:50:13,200 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.8461538461538463) internal successors, (150), 38 states have internal predecessors, (150), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:13,200 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 159 transitions. [2022-04-06 14:50:13,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-04-06 14:50:13,201 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:50:13,201 INFO L499 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:50:13,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-04-06 14:50:13,403 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-04-06 14:50:13,403 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:50:13,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:50:13,404 INFO L85 PathProgramCache]: Analyzing trace with hash -689056294, now seen corresponding path program 43 times [2022-04-06 14:50:13,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:50:13,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [330202838] [2022-04-06 14:50:13,404 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:50:13,404 INFO L85 PathProgramCache]: Analyzing trace with hash -689056294, now seen corresponding path program 44 times [2022-04-06 14:50:13,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:50:13,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659044841] [2022-04-06 14:50:13,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:50:13,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:50:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:50:14,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:50:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:50:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:50:14,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:50:14,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659044841] [2022-04-06 14:50:14,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659044841] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:50:14,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604574698] [2022-04-06 14:50:14,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 14:50:14,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:50:14,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:50:14,308 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:50:14,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-04-06 14:50:14,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 14:50:14,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:50:14,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 67 conjunts are in the unsatisfiable core [2022-04-06 14:50:14,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:50:15,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:50:15,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:50:16,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:50:16,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604574698] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:50:16,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:50:16,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 35, 35] total 74 [2022-04-06 14:50:16,951 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:50:16,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [330202838] [2022-04-06 14:50:16,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [330202838] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:50:16,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:50:16,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-04-06 14:50:16,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351288752] [2022-04-06 14:50:16,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:50:16,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-04-06 14:50:16,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:50:16,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-04-06 14:50:16,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=4321, Unknown=0, NotChecked=0, Total=5402 [2022-04-06 14:50:16,953 INFO L87 Difference]: Start difference. First operand 159 states and 159 transitions. Second operand has 40 states, 40 states have (on average 3.875) internal successors, (155), 39 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:19,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:50:19,202 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2022-04-06 14:50:19,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-04-06 14:50:19,203 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.875) internal successors, (155), 39 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-04-06 14:50:19,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:50:19,204 INFO L225 Difference]: With dead ends: 170 [2022-04-06 14:50:19,204 INFO L226 Difference]: Without dead ends: 167 [2022-04-06 14:50:19,205 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 283 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1891, Invalid=8615, Unknown=0, NotChecked=0, Total=10506 [2022-04-06 14:50:19,208 INFO L913 BasicCegarLoop]: 42 mSDtfsCounter, 92 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 4217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:50:19,209 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 1331 Invalid, 4217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-04-06 14:50:19,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-04-06 14:50:19,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2022-04-06 14:50:19,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 160 states have (on average 1.00625) internal successors, (161), 160 states have internal predecessors, (161), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:19,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 164 transitions. [2022-04-06 14:50:19,229 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 164 transitions. Word has length 158 [2022-04-06 14:50:19,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:50:19,229 INFO L478 AbstractCegarLoop]: Abstraction has 164 states and 164 transitions. [2022-04-06 14:50:19,230 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.875) internal successors, (155), 39 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:19,230 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 164 transitions. [2022-04-06 14:50:19,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-04-06 14:50:19,230 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:50:19,231 INFO L499 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:50:19,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-04-06 14:50:19,443 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:50:19,443 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:50:19,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:50:19,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1907870937, now seen corresponding path program 45 times [2022-04-06 14:50:19,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:50:19,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1594686385] [2022-04-06 14:50:19,445 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:50:19,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1907870937, now seen corresponding path program 46 times [2022-04-06 14:50:19,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:50:19,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930057735] [2022-04-06 14:50:19,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:50:19,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:50:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:50:20,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:50:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:50:20,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:50:20,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:50:20,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930057735] [2022-04-06 14:50:20,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930057735] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:50:20,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142744038] [2022-04-06 14:50:20,317 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 14:50:20,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:50:20,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:50:20,318 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:50:20,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-04-06 14:50:20,738 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 14:50:20,739 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:50:20,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 69 conjunts are in the unsatisfiable core [2022-04-06 14:50:20,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:50:21,294 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:50:21,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:50:23,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:50:23,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142744038] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:50:23,013 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:50:23,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 36, 36] total 76 [2022-04-06 14:50:23,013 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:50:23,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1594686385] [2022-04-06 14:50:23,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1594686385] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:50:23,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:50:23,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2022-04-06 14:50:23,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119426612] [2022-04-06 14:50:23,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:50:23,014 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-04-06 14:50:23,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:50:23,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-04-06 14:50:23,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1109, Invalid=4591, Unknown=0, NotChecked=0, Total=5700 [2022-04-06 14:50:23,015 INFO L87 Difference]: Start difference. First operand 164 states and 164 transitions. Second operand has 41 states, 41 states have (on average 3.902439024390244) internal successors, (160), 40 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:25,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:50:25,582 INFO L93 Difference]: Finished difference Result 175 states and 175 transitions. [2022-04-06 14:50:25,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-04-06 14:50:25,582 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.902439024390244) internal successors, (160), 40 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-04-06 14:50:25,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:50:25,583 INFO L225 Difference]: With dead ends: 175 [2022-04-06 14:50:25,583 INFO L226 Difference]: Without dead ends: 172 [2022-04-06 14:50:25,584 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 292 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1940, Invalid=9190, Unknown=0, NotChecked=0, Total=11130 [2022-04-06 14:50:25,584 INFO L913 BasicCegarLoop]: 43 mSDtfsCounter, 92 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 4794 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 4858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 4794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:50:25,584 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 1510 Invalid, 4858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 4794 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-04-06 14:50:25,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-04-06 14:50:25,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2022-04-06 14:50:25,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 165 states have (on average 1.006060606060606) internal successors, (166), 165 states have internal predecessors, (166), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 169 transitions. [2022-04-06 14:50:25,607 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 169 transitions. Word has length 163 [2022-04-06 14:50:25,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:50:25,607 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 169 transitions. [2022-04-06 14:50:25,607 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.902439024390244) internal successors, (160), 40 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:50:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 169 transitions. [2022-04-06 14:50:25,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-04-06 14:50:25,608 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:50:25,608 INFO L499 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:50:25,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-04-06 14:50:25,819 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:50:25,819 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:50:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:50:25,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1478795974, now seen corresponding path program 47 times [2022-04-06 14:50:25,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:50:25,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1452902119] [2022-04-06 14:50:25,821 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:50:25,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1478795974, now seen corresponding path program 48 times [2022-04-06 14:50:25,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:50:25,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22083509] [2022-04-06 14:50:25,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:50:25,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:50:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:50:26,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:50:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:50:26,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:50:26,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:50:26,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22083509] [2022-04-06 14:50:26,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22083509] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:50:26,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82235255] [2022-04-06 14:50:26,678 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-06 14:50:26,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:50:26,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:50:26,679 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:50:26,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-04-06 14:50:39,188 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-06 14:50:39,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:50:39,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 166 conjunts are in the unsatisfiable core [2022-04-06 14:50:39,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:51:08,074 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 14:51:08,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 41 select indices, 41 select index equivalence classes, 780 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 820 case distinctions, treesize of input 288 treesize of output 444 [2022-04-06 14:52:07,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 69 proven. 95 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2022-04-06 14:52:07,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:52:13,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2022-04-06 14:52:13,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82235255] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:52:13,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:52:13,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 23, 22] total 83 [2022-04-06 14:52:13,614 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:52:13,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1452902119] [2022-04-06 14:52:13,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1452902119] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:52:13,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:52:13,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-04-06 14:52:13,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248442870] [2022-04-06 14:52:13,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:52:13,615 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-04-06 14:52:13,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:52:13,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-04-06 14:52:13,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=772, Invalid=6034, Unknown=0, NotChecked=0, Total=6806 [2022-04-06 14:52:13,616 INFO L87 Difference]: Start difference. First operand 169 states and 169 transitions. Second operand has 42 states, 42 states have (on average 3.9285714285714284) internal successors, (165), 41 states have internal predecessors, (165), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:52:16,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:52:16,929 INFO L93 Difference]: Finished difference Result 180 states and 180 transitions. [2022-04-06 14:52:16,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-04-06 14:52:16,929 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.9285714285714284) internal successors, (165), 41 states have internal predecessors, (165), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-04-06 14:52:16,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:52:16,930 INFO L225 Difference]: With dead ends: 180 [2022-04-06 14:52:16,930 INFO L226 Difference]: Without dead ends: 177 [2022-04-06 14:52:16,931 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 292 SyntacticMatches, 5 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2118 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=1050, Invalid=11832, Unknown=0, NotChecked=0, Total=12882 [2022-04-06 14:52:16,931 INFO L913 BasicCegarLoop]: 44 mSDtfsCounter, 96 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 4686 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 4752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 4686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-04-06 14:52:16,931 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 1478 Invalid, 4752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 4686 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-04-06 14:52:16,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-04-06 14:52:16,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2022-04-06 14:52:16,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 170 states have (on average 1.0058823529411764) internal successors, (171), 170 states have internal predecessors, (171), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:52:16,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2022-04-06 14:52:16,956 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 168 [2022-04-06 14:52:16,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:52:16,957 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2022-04-06 14:52:16,957 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.9285714285714284) internal successors, (165), 41 states have internal predecessors, (165), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:52:16,957 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2022-04-06 14:52:16,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-04-06 14:52:16,958 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:52:16,958 INFO L499 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:52:16,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-04-06 14:52:17,171 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-04-06 14:52:17,171 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:52:17,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:52:17,172 INFO L85 PathProgramCache]: Analyzing trace with hash 787997049, now seen corresponding path program 49 times [2022-04-06 14:52:17,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:52:17,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2131442759] [2022-04-06 14:52:17,173 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:52:17,173 INFO L85 PathProgramCache]: Analyzing trace with hash 787997049, now seen corresponding path program 50 times [2022-04-06 14:52:17,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:52:17,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153926851] [2022-04-06 14:52:17,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:52:17,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:52:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:52:18,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:52:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:52:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:52:18,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:52:18,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153926851] [2022-04-06 14:52:18,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153926851] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:52:18,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426635125] [2022-04-06 14:52:18,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 14:52:18,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:52:18,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:52:18,068 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:52:18,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-04-06 14:52:18,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 14:52:18,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:52:18,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 73 conjunts are in the unsatisfiable core [2022-04-06 14:52:18,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:52:19,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:52:19,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:52:21,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:52:21,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426635125] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:52:21,189 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:52:21,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 38, 38] total 80 [2022-04-06 14:52:21,189 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:52:21,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2131442759] [2022-04-06 14:52:21,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2131442759] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:52:21,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:52:21,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-04-06 14:52:21,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760181862] [2022-04-06 14:52:21,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:52:21,190 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-04-06 14:52:21,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:52:21,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-04-06 14:52:21,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1158, Invalid=5162, Unknown=0, NotChecked=0, Total=6320 [2022-04-06 14:52:21,192 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand has 43 states, 43 states have (on average 3.953488372093023) internal successors, (170), 42 states have internal predecessors, (170), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:52:24,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:52:24,127 INFO L93 Difference]: Finished difference Result 185 states and 185 transitions. [2022-04-06 14:52:24,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-04-06 14:52:24,128 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.953488372093023) internal successors, (170), 42 states have internal predecessors, (170), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-04-06 14:52:24,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:52:24,129 INFO L225 Difference]: With dead ends: 185 [2022-04-06 14:52:24,129 INFO L226 Difference]: Without dead ends: 182 [2022-04-06 14:52:24,130 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 310 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2026, Invalid=10406, Unknown=0, NotChecked=0, Total=12432 [2022-04-06 14:52:24,130 INFO L913 BasicCegarLoop]: 45 mSDtfsCounter, 95 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 5233 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 5301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 5233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:52:24,131 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 1635 Invalid, 5301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 5233 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-06 14:52:24,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-04-06 14:52:24,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 179. [2022-04-06 14:52:24,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 175 states have (on average 1.0057142857142858) internal successors, (176), 175 states have internal predecessors, (176), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:52:24,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 179 transitions. [2022-04-06 14:52:24,156 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 179 transitions. Word has length 173 [2022-04-06 14:52:24,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:52:24,156 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 179 transitions. [2022-04-06 14:52:24,156 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.953488372093023) internal successors, (170), 42 states have internal predecessors, (170), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:52:24,156 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 179 transitions. [2022-04-06 14:52:24,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-04-06 14:52:24,157 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:52:24,157 INFO L499 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:52:24,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2022-04-06 14:52:24,379 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-04-06 14:52:24,379 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:52:24,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:52:24,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1687104666, now seen corresponding path program 51 times [2022-04-06 14:52:24,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:52:24,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1859859258] [2022-04-06 14:52:24,381 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:52:24,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1687104666, now seen corresponding path program 52 times [2022-04-06 14:52:24,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:52:24,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733088136] [2022-04-06 14:52:24,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:52:24,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:52:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:52:25,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:52:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:52:25,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 1703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:52:25,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:52:25,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733088136] [2022-04-06 14:52:25,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733088136] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:52:25,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959560711] [2022-04-06 14:52:25,421 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 14:52:25,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:52:25,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:52:25,422 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:52:25,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-04-06 14:52:25,887 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 14:52:25,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:52:25,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 75 conjunts are in the unsatisfiable core [2022-04-06 14:52:25,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:52:26,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 1703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:52:26,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:52:28,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 1703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:52:28,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959560711] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:52:28,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:52:28,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 39, 39] total 82 [2022-04-06 14:52:28,478 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:52:28,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1859859258] [2022-04-06 14:52:28,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1859859258] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:52:28,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:52:28,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-04-06 14:52:28,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845350318] [2022-04-06 14:52:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:52:28,478 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-04-06 14:52:28,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:52:28,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-04-06 14:52:28,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1179, Invalid=5463, Unknown=0, NotChecked=0, Total=6642 [2022-04-06 14:52:28,480 INFO L87 Difference]: Start difference. First operand 179 states and 179 transitions. Second operand has 44 states, 44 states have (on average 3.977272727272727) internal successors, (175), 43 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:52:31,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:52:31,505 INFO L93 Difference]: Finished difference Result 190 states and 190 transitions. [2022-04-06 14:52:31,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-04-06 14:52:31,505 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.977272727272727) internal successors, (175), 43 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-04-06 14:52:31,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:52:31,506 INFO L225 Difference]: With dead ends: 190 [2022-04-06 14:52:31,506 INFO L226 Difference]: Without dead ends: 187 [2022-04-06 14:52:31,507 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 319 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1353 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=2063, Invalid=11047, Unknown=0, NotChecked=0, Total=13110 [2022-04-06 14:52:31,507 INFO L913 BasicCegarLoop]: 46 mSDtfsCounter, 101 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 5387 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 5457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 5387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-04-06 14:52:31,508 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 1672 Invalid, 5457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 5387 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-04-06 14:52:31,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-04-06 14:52:31,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 184. [2022-04-06 14:52:31,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 180 states have (on average 1.0055555555555555) internal successors, (181), 180 states have internal predecessors, (181), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:52:31,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 184 transitions. [2022-04-06 14:52:31,533 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 184 transitions. Word has length 178 [2022-04-06 14:52:31,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:52:31,533 INFO L478 AbstractCegarLoop]: Abstraction has 184 states and 184 transitions. [2022-04-06 14:52:31,533 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.977272727272727) internal successors, (175), 43 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:52:31,533 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 184 transitions. [2022-04-06 14:52:31,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-04-06 14:52:31,534 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:52:31,534 INFO L499 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:52:31,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-04-06 14:52:31,735 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-04-06 14:52:31,735 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:52:31,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:52:31,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1226747417, now seen corresponding path program 53 times [2022-04-06 14:52:31,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:52:31,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [70626137] [2022-04-06 14:52:31,737 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:52:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1226747417, now seen corresponding path program 54 times [2022-04-06 14:52:31,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:52:31,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718943335] [2022-04-06 14:52:31,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:52:31,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:52:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:52:32,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:52:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:52:32,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 0 proven. 1836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:52:32,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:52:32,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718943335] [2022-04-06 14:52:32,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718943335] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:52:32,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385866508] [2022-04-06 14:52:32,746 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-06 14:52:32,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:52:32,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:52:32,748 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:52:32,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-04-06 14:52:44,609 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-06 14:52:44,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:52:44,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 133 conjunts are in the unsatisfiable core [2022-04-06 14:52:44,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:52:55,620 INFO L356 Elim1Store]: treesize reduction 12, result has 91.9 percent of original size [2022-04-06 14:52:55,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 120 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 127 treesize of output 191 [2022-04-06 14:52:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 78 proven. 107 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-04-06 14:52:59,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:53:06,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-04-06 14:53:06,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385866508] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:53:06,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:53:06,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 25, 23] total 89 [2022-04-06 14:53:06,598 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:53:06,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [70626137] [2022-04-06 14:53:06,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [70626137] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:53:06,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:53:06,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2022-04-06 14:53:06,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164265427] [2022-04-06 14:53:06,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:53:06,603 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-04-06 14:53:06,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:53:06,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-04-06 14:53:06,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=878, Invalid=6954, Unknown=0, NotChecked=0, Total=7832 [2022-04-06 14:53:06,604 INFO L87 Difference]: Start difference. First operand 184 states and 184 transitions. Second operand has 45 states, 45 states have (on average 4.0) internal successors, (180), 44 states have internal predecessors, (180), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:53:10,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:53:10,331 INFO L93 Difference]: Finished difference Result 195 states and 195 transitions. [2022-04-06 14:53:10,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-04-06 14:53:10,331 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 4.0) internal successors, (180), 44 states have internal predecessors, (180), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 183 [2022-04-06 14:53:10,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:53:10,332 INFO L225 Difference]: With dead ends: 195 [2022-04-06 14:53:10,332 INFO L226 Difference]: Without dead ends: 192 [2022-04-06 14:53:10,333 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 321 SyntacticMatches, 3 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2546 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=1195, Invalid=13811, Unknown=0, NotChecked=0, Total=15006 [2022-04-06 14:53:10,334 INFO L913 BasicCegarLoop]: 47 mSDtfsCounter, 102 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 5686 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 5758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 5686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:53:10,334 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1758 Invalid, 5758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 5686 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 14:53:10,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-04-06 14:53:10,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2022-04-06 14:53:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 185 states have (on average 1.0054054054054054) internal successors, (186), 185 states have internal predecessors, (186), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:53:10,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 189 transitions. [2022-04-06 14:53:10,353 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 189 transitions. Word has length 183 [2022-04-06 14:53:10,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:53:10,354 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 189 transitions. [2022-04-06 14:53:10,354 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 4.0) internal successors, (180), 44 states have internal predecessors, (180), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:53:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 189 transitions. [2022-04-06 14:53:10,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-04-06 14:53:10,354 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:53:10,354 INFO L499 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:53:10,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-04-06 14:53:10,555 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-04-06 14:53:10,555 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:53:10,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:53:10,555 INFO L85 PathProgramCache]: Analyzing trace with hash -540064774, now seen corresponding path program 55 times [2022-04-06 14:53:10,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:53:10,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [201598564] [2022-04-06 14:53:10,556 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:53:10,556 INFO L85 PathProgramCache]: Analyzing trace with hash -540064774, now seen corresponding path program 56 times [2022-04-06 14:53:10,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:53:10,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737234420] [2022-04-06 14:53:10,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:53:10,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:53:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:53:11,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:53:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:53:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:53:11,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:53:11,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737234420] [2022-04-06 14:53:11,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737234420] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:53:11,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544298401] [2022-04-06 14:53:11,589 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 14:53:11,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:53:11,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:53:11,590 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:53:11,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-04-06 14:53:12,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 14:53:12,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:53:12,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 1911 conjuncts, 79 conjunts are in the unsatisfiable core [2022-04-06 14:53:12,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:53:12,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:53:12,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:53:15,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:53:15,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544298401] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:53:15,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:53:15,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 41, 41] total 86 [2022-04-06 14:53:15,092 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:53:15,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [201598564] [2022-04-06 14:53:15,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [201598564] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:53:15,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:53:15,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-04-06 14:53:15,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164571167] [2022-04-06 14:53:15,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:53:15,092 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-04-06 14:53:15,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:53:15,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-04-06 14:53:15,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1214, Invalid=6096, Unknown=0, NotChecked=0, Total=7310 [2022-04-06 14:53:15,094 INFO L87 Difference]: Start difference. First operand 189 states and 189 transitions. Second operand has 46 states, 46 states have (on average 4.021739130434782) internal successors, (185), 45 states have internal predecessors, (185), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:53:18,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:53:18,440 INFO L93 Difference]: Finished difference Result 200 states and 200 transitions. [2022-04-06 14:53:18,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-04-06 14:53:18,441 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 4.021739130434782) internal successors, (185), 45 states have internal predecessors, (185), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-04-06 14:53:18,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:53:18,441 INFO L225 Difference]: With dead ends: 200 [2022-04-06 14:53:18,441 INFO L226 Difference]: Without dead ends: 197 [2022-04-06 14:53:18,443 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 337 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2125, Invalid=12395, Unknown=0, NotChecked=0, Total=14520 [2022-04-06 14:53:18,443 INFO L913 BasicCegarLoop]: 48 mSDtfsCounter, 101 mSDsluCounter, 1798 mSDsCounter, 0 mSdLazyCounter, 5993 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 6067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-04-06 14:53:18,443 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 1846 Invalid, 6067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 5993 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-04-06 14:53:18,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-04-06 14:53:18,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2022-04-06 14:53:18,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 190 states have (on average 1.0052631578947369) internal successors, (191), 190 states have internal predecessors, (191), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:53:18,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 194 transitions. [2022-04-06 14:53:18,471 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 194 transitions. Word has length 188 [2022-04-06 14:53:18,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:53:18,471 INFO L478 AbstractCegarLoop]: Abstraction has 194 states and 194 transitions. [2022-04-06 14:53:18,471 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.021739130434782) internal successors, (185), 45 states have internal predecessors, (185), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:53:18,471 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 194 transitions. [2022-04-06 14:53:18,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-04-06 14:53:18,472 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:53:18,472 INFO L499 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:53:18,501 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-04-06 14:53:18,687 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-04-06 14:53:18,687 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:53:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:53:18,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1188678983, now seen corresponding path program 57 times [2022-04-06 14:53:18,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:53:18,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1728139507] [2022-04-06 14:53:18,689 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:53:18,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1188678983, now seen corresponding path program 58 times [2022-04-06 14:53:18,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:53:18,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915854121] [2022-04-06 14:53:18,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:53:18,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:53:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:53:19,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:53:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:53:19,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:53:19,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:53:19,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915854121] [2022-04-06 14:53:19,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915854121] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:53:19,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890918700] [2022-04-06 14:53:19,718 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 14:53:19,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:53:19,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:53:19,719 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:53:19,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-04-06 14:53:20,217 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 14:53:20,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:53:20,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 81 conjunts are in the unsatisfiable core [2022-04-06 14:53:20,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:53:20,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:53:20,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:53:23,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:53:23,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890918700] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:53:23,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:53:23,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 42, 42] total 88 [2022-04-06 14:53:23,322 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:53:23,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1728139507] [2022-04-06 14:53:23,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1728139507] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:53:23,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:53:23,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2022-04-06 14:53:23,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535807768] [2022-04-06 14:53:23,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:53:23,323 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-04-06 14:53:23,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:53:23,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-04-06 14:53:23,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1228, Invalid=6428, Unknown=0, NotChecked=0, Total=7656 [2022-04-06 14:53:23,325 INFO L87 Difference]: Start difference. First operand 194 states and 194 transitions. Second operand has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 46 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:53:26,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:53:26,891 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2022-04-06 14:53:26,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-04-06 14:53:26,892 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 46 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 193 [2022-04-06 14:53:26,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:53:26,893 INFO L225 Difference]: With dead ends: 205 [2022-04-06 14:53:26,893 INFO L226 Difference]: Without dead ends: 202 [2022-04-06 14:53:26,893 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 346 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1607 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=2150, Invalid=13102, Unknown=0, NotChecked=0, Total=15252 [2022-04-06 14:53:26,894 INFO L913 BasicCegarLoop]: 49 mSDtfsCounter, 106 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 6306 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 6382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 6306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-04-06 14:53:26,894 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 1930 Invalid, 6382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 6306 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-04-06 14:53:26,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-04-06 14:53:26,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2022-04-06 14:53:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 195 states have (on average 1.005128205128205) internal successors, (196), 195 states have internal predecessors, (196), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:53:26,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 199 transitions. [2022-04-06 14:53:26,923 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 199 transitions. Word has length 193 [2022-04-06 14:53:26,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:53:26,923 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 199 transitions. [2022-04-06 14:53:26,923 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 46 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:53:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 199 transitions. [2022-04-06 14:53:26,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-04-06 14:53:26,924 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:53:26,924 INFO L499 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:53:26,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2022-04-06 14:53:27,135 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:53:27,135 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:53:27,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:53:27,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1394498726, now seen corresponding path program 59 times [2022-04-06 14:53:27,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:53:27,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [912471762] [2022-04-06 14:53:27,140 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:53:27,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1394498726, now seen corresponding path program 60 times [2022-04-06 14:53:27,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:53:27,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092795367] [2022-04-06 14:53:27,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:53:27,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:53:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:53:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:53:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:53:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 2265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:53:28,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:53:28,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092795367] [2022-04-06 14:53:28,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092795367] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:53:28,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531435123] [2022-04-06 14:53:28,266 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-06 14:53:28,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:53:28,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:53:28,267 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:53:28,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-04-06 14:53:44,524 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-06 14:53:44,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:53:44,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 156 conjunts are in the unsatisfiable core [2022-04-06 14:53:44,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:54:33,778 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 14:54:33,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 42 select indices, 42 select index equivalence classes, 820 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 861 case distinctions, treesize of input 295 treesize of output 455 [2022-04-06 14:56:12,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 87 proven. 119 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2022-04-06 14:56:12,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:56:19,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2022-04-06 14:56:19,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531435123] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:56:19,321 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:56:19,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 23, 21] total 88 [2022-04-06 14:56:19,322 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:56:19,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [912471762] [2022-04-06 14:56:19,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [912471762] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:56:19,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:56:19,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-04-06 14:56:19,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861699556] [2022-04-06 14:56:19,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:56:19,322 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-04-06 14:56:19,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:56:19,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-04-06 14:56:19,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=769, Invalid=6887, Unknown=0, NotChecked=0, Total=7656 [2022-04-06 14:56:19,323 INFO L87 Difference]: Start difference. First operand 199 states and 199 transitions. Second operand has 48 states, 48 states have (on average 4.0625) internal successors, (195), 47 states have internal predecessors, (195), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:56:23,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:56:23,417 INFO L93 Difference]: Finished difference Result 210 states and 210 transitions. [2022-04-06 14:56:23,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-04-06 14:56:23,417 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 4.0625) internal successors, (195), 47 states have internal predecessors, (195), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-04-06 14:56:23,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:56:23,418 INFO L225 Difference]: With dead ends: 210 [2022-04-06 14:56:23,418 INFO L226 Difference]: Without dead ends: 207 [2022-04-06 14:56:23,419 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 353 SyntacticMatches, 5 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2310 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=1131, Invalid=14369, Unknown=0, NotChecked=0, Total=15500 [2022-04-06 14:56:23,419 INFO L913 BasicCegarLoop]: 50 mSDtfsCounter, 106 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 6629 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 6707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 6629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:56:23,419 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 2022 Invalid, 6707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 6629 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 14:56:23,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-04-06 14:56:23,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2022-04-06 14:56:23,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.005) internal successors, (201), 200 states have internal predecessors, (201), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:56:23,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 204 transitions. [2022-04-06 14:56:23,450 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 204 transitions. Word has length 198 [2022-04-06 14:56:23,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:56:23,450 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 204 transitions. [2022-04-06 14:56:23,450 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.0625) internal successors, (195), 47 states have internal predecessors, (195), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:56:23,450 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 204 transitions. [2022-04-06 14:56:23,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-04-06 14:56:23,451 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:56:23,451 INFO L499 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:56:23,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-04-06 14:56:23,671 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-04-06 14:56:23,671 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:56:23,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:56:23,672 INFO L85 PathProgramCache]: Analyzing trace with hash 126381913, now seen corresponding path program 61 times [2022-04-06 14:56:23,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:56:23,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [470762286] [2022-04-06 14:56:23,673 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:56:23,673 INFO L85 PathProgramCache]: Analyzing trace with hash 126381913, now seen corresponding path program 62 times [2022-04-06 14:56:23,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:56:23,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668267953] [2022-04-06 14:56:23,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:56:23,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:56:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:56:24,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:56:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:56:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:56:24,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:56:24,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668267953] [2022-04-06 14:56:24,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668267953] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:56:24,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408763273] [2022-04-06 14:56:24,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-06 14:56:24,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:56:24,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:56:24,772 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:56:24,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-04-06 14:56:25,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-06 14:56:25,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:56:25,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 2025 conjuncts, 85 conjunts are in the unsatisfiable core [2022-04-06 14:56:25,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:56:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:56:25,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:56:28,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:56:28,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408763273] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:56:28,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:56:28,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 44, 44] total 92 [2022-04-06 14:56:28,427 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:56:28,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [470762286] [2022-04-06 14:56:28,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [470762286] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:56:28,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:56:28,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2022-04-06 14:56:28,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940770306] [2022-04-06 14:56:28,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:56:28,427 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-04-06 14:56:28,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:56:28,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-04-06 14:56:28,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1247, Invalid=7125, Unknown=0, NotChecked=0, Total=8372 [2022-04-06 14:56:28,429 INFO L87 Difference]: Start difference. First operand 204 states and 204 transitions. Second operand has 49 states, 49 states have (on average 4.081632653061225) internal successors, (200), 48 states have internal predecessors, (200), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:56:32,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:56:32,323 INFO L93 Difference]: Finished difference Result 215 states and 215 transitions. [2022-04-06 14:56:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-04-06 14:56:32,323 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 4.081632653061225) internal successors, (200), 48 states have internal predecessors, (200), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-04-06 14:56:32,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:56:32,324 INFO L225 Difference]: With dead ends: 215 [2022-04-06 14:56:32,324 INFO L226 Difference]: Without dead ends: 212 [2022-04-06 14:56:32,325 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 364 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1785 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2188, Invalid=14582, Unknown=0, NotChecked=0, Total=16770 [2022-04-06 14:56:32,325 INFO L913 BasicCegarLoop]: 51 mSDtfsCounter, 108 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 7117 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 7197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 7117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-04-06 14:56:32,326 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 2157 Invalid, 7197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 7117 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-04-06 14:56:32,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-04-06 14:56:32,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 209. [2022-04-06 14:56:32,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 205 states have (on average 1.0048780487804878) internal successors, (206), 205 states have internal predecessors, (206), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:56:32,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2022-04-06 14:56:32,352 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 203 [2022-04-06 14:56:32,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:56:32,352 INFO L478 AbstractCegarLoop]: Abstraction has 209 states and 209 transitions. [2022-04-06 14:56:32,352 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 4.081632653061225) internal successors, (200), 48 states have internal predecessors, (200), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:56:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 209 transitions. [2022-04-06 14:56:32,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-04-06 14:56:32,353 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:56:32,353 INFO L499 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:56:32,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-04-06 14:56:32,554 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:56:32,554 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:56:32,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:56:32,554 INFO L85 PathProgramCache]: Analyzing trace with hash 2139900602, now seen corresponding path program 63 times [2022-04-06 14:56:32,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:56:32,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1393957498] [2022-04-06 14:56:32,555 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:56:32,555 INFO L85 PathProgramCache]: Analyzing trace with hash 2139900602, now seen corresponding path program 64 times [2022-04-06 14:56:32,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:56:32,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816576965] [2022-04-06 14:56:32,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:56:32,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:56:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:56:33,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:56:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:56:33,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:56:33,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:56:33,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816576965] [2022-04-06 14:56:33,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816576965] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:56:33,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074736064] [2022-04-06 14:56:33,669 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-06 14:56:33,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:56:33,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:56:33,672 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:56:33,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-04-06 14:56:34,162 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-06 14:56:34,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:56:34,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 2063 conjuncts, 87 conjunts are in the unsatisfiable core [2022-04-06 14:56:34,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:56:34,829 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:56:34,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:56:37,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:56:37,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074736064] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:56:37,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:56:37,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 45, 45] total 94 [2022-04-06 14:56:37,366 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:56:37,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1393957498] [2022-04-06 14:56:37,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1393957498] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:56:37,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:56:37,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-04-06 14:56:37,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419115698] [2022-04-06 14:56:37,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:56:37,366 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-04-06 14:56:37,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:56:37,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-04-06 14:56:37,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1253, Invalid=7489, Unknown=0, NotChecked=0, Total=8742 [2022-04-06 14:56:37,368 INFO L87 Difference]: Start difference. First operand 209 states and 209 transitions. Second operand has 50 states, 50 states have (on average 4.1) internal successors, (205), 49 states have internal predecessors, (205), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:56:41,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:56:41,510 INFO L93 Difference]: Finished difference Result 220 states and 220 transitions. [2022-04-06 14:56:41,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-04-06 14:56:41,510 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.1) internal successors, (205), 49 states have internal predecessors, (205), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 208 [2022-04-06 14:56:41,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:56:41,511 INFO L225 Difference]: With dead ends: 220 [2022-04-06 14:56:41,511 INFO L226 Difference]: Without dead ends: 217 [2022-04-06 14:56:41,512 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 373 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1876 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=2201, Invalid=15355, Unknown=0, NotChecked=0, Total=17556 [2022-04-06 14:56:41,512 INFO L913 BasicCegarLoop]: 52 mSDtfsCounter, 111 mSDsluCounter, 2238 mSDsCounter, 0 mSdLazyCounter, 7619 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 7701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 7619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-04-06 14:56:41,512 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 2290 Invalid, 7701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 7619 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-04-06 14:56:41,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-04-06 14:56:41,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2022-04-06 14:56:41,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 210 states have (on average 1.0047619047619047) internal successors, (211), 210 states have internal predecessors, (211), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:56:41,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 214 transitions. [2022-04-06 14:56:41,536 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 214 transitions. Word has length 208 [2022-04-06 14:56:41,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:56:41,536 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 214 transitions. [2022-04-06 14:56:41,536 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.1) internal successors, (205), 49 states have internal predecessors, (205), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:56:41,536 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 214 transitions. [2022-04-06 14:56:41,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-04-06 14:56:41,537 INFO L491 BasicCegarLoop]: Found error trace [2022-04-06 14:56:41,537 INFO L499 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-06 14:56:41,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-04-06 14:56:41,752 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:56:41,752 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-06 14:56:41,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-06 14:56:41,753 INFO L85 PathProgramCache]: Analyzing trace with hash -331389959, now seen corresponding path program 65 times [2022-04-06 14:56:41,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-04-06 14:56:41,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [645870695] [2022-04-06 14:56:41,754 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-04-06 14:56:41,754 INFO L85 PathProgramCache]: Analyzing trace with hash -331389959, now seen corresponding path program 66 times [2022-04-06 14:56:41,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-06 14:56:41,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530166014] [2022-04-06 14:56:41,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-06 14:56:41,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-06 14:56:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:56:43,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-06 14:56:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-06 14:56:43,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 99 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-06 14:56:43,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-06 14:56:43,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530166014] [2022-04-06 14:56:43,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530166014] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-06 14:56:43,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317968318] [2022-04-06 14:56:43,946 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-04-06 14:56:43,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-06 14:56:43,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-06 14:56:43,947 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-06 14:56:43,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-04-06 14:56:52,640 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-04-06 14:56:52,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-06 14:56:52,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 77 conjunts are in the unsatisfiable core [2022-04-06 14:56:52,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-06 14:56:54,922 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-04-06 14:56:54,923 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 26 [2022-04-06 14:56:55,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 96 proven. 131 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2022-04-06 14:56:55,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-06 14:57:01,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2022-04-06 14:57:01,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317968318] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-06 14:57:01,974 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-06 14:57:01,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 22, 20] total 90 [2022-04-06 14:57:01,974 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-04-06 14:57:01,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [645870695] [2022-04-06 14:57:01,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [645870695] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-06 14:57:01,974 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-06 14:57:01,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-04-06 14:57:01,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627253037] [2022-04-06 14:57:01,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-06 14:57:01,975 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-04-06 14:57:01,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-04-06 14:57:01,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-04-06 14:57:01,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1318, Invalid=6692, Unknown=0, NotChecked=0, Total=8010 [2022-04-06 14:57:01,975 INFO L87 Difference]: Start difference. First operand 214 states and 214 transitions. Second operand has 52 states, 52 states have (on average 4.038461538461538) internal successors, (210), 51 states have internal predecessors, (210), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:57:04,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-06 14:57:04,483 INFO L93 Difference]: Finished difference Result 216 states and 216 transitions. [2022-04-06 14:57:04,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-04-06 14:57:04,484 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 4.038461538461538) internal successors, (210), 51 states have internal predecessors, (210), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-04-06 14:57:04,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-06 14:57:04,484 INFO L225 Difference]: With dead ends: 216 [2022-04-06 14:57:04,484 INFO L226 Difference]: Without dead ends: 0 [2022-04-06 14:57:04,485 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 387 SyntacticMatches, 3 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1367, Invalid=7005, Unknown=0, NotChecked=0, Total=8372 [2022-04-06 14:57:04,485 INFO L913 BasicCegarLoop]: 86 mSDtfsCounter, 21 mSDsluCounter, 3583 mSDsCounter, 0 mSdLazyCounter, 5847 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 5853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-04-06 14:57:04,486 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 3669 Invalid, 5853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 5847 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-04-06 14:57:04,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-06 14:57:04,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-06 14:57:04,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-06 14:57:04,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-06 14:57:04,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 213 [2022-04-06 14:57:04,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-06 14:57:04,486 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-06 14:57:04,486 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.038461538461538) internal successors, (210), 51 states have internal predecessors, (210), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-06 14:57:04,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-06 14:57:04,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-06 14:57:04,488 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-06 14:57:04,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-04-06 14:57:04,689 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-04-06 14:57:04,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-06 14:57:10,473 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2022-04-06 14:57:10,473 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2022-04-06 14:57:10,473 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2022-04-06 14:57:10,473 INFO L878 garLoopResultBuilder]: At program point L225(lines 225 604) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,473 INFO L878 garLoopResultBuilder]: At program point L192(lines 192 622) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,473 INFO L878 garLoopResultBuilder]: At program point L448(lines 408 481) the Hoare annotation is: (let ((.cse2 (+ (div ~Id_MCDC_93~0 4294967296) 1))) (let ((.cse0 (< 0 .cse2)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 33) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 26) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 14) .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= ~Id_MCDC_93~0 10) .cse0 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 21) (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= ~Id_MCDC_93~0 37) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1 (<= ~Id_MCDC_93~0 18)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= ~Id_MCDC_93~0 41) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (not (<= .cse2 0)) .cse1) (and (<= ~Id_MCDC_93~0 12) (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 23) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) (<= ~Id_MCDC_93~0 34) .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) (<= ~Id_MCDC_93~0 22) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse1) (not (<= |old(~Id_MCDC_93~0)| 9)) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= ~Id_MCDC_93~0 36) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 9)) (and (<= ~Id_MCDC_93~0 16) (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 15) (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 40) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40))))) [2022-04-06 14:57:10,473 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 136 636) the Hoare annotation is: true [2022-04-06 14:57:10,473 INFO L878 garLoopResultBuilder]: At program point L184(lines 184 628) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L440(lines 440 453) the Hoare annotation is: (let ((.cse3 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse2 (+ .cse3 1))) (let ((.cse0 (< 0 .cse2)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) (<= ~Id_MCDC_93~0 28) .cse1) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= ~Id_MCDC_93~0 23) (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse1) (and (<= ~Id_MCDC_93~0 34) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 40) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) (<= ~Id_MCDC_93~0 14) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse1 (<= ~Id_MCDC_93~0 18)) (and (<= ~Id_MCDC_93~0 37) (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= ~Id_MCDC_93~0 32) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 16) .cse0 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 22) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 21) .cse1) (and .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) (<= ~Id_MCDC_93~0 39) .cse1) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 41) (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (not (<= .cse2 0)) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= ~Id_MCDC_93~0 26) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and (<= ~Id_MCDC_93~0 33) .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) .cse0 (<= ~Id_MCDC_93~0 35) (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) (<= ~Id_MCDC_93~0 13) .cse1) (let ((.cse4 (* 4294967296 .cse3))) (and (<= .cse3 0) (< (+ .cse4 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (= |main_#t~mem55| 0) (<= ~Id_MCDC_93~0 (+ .cse4 41)) .cse1)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) (<= ~Id_MCDC_93~0 10) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 36) .cse1) (and .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 15) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 12) .cse0 (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1))))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L407(lines 407 485) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L374(lines 374 503) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L465(lines 465 473) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L366(lines 366 509) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L234(lines 234 599) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L251(lines 251 587) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L218(lines 218 605) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L210(lines 210 611) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L433(lines 433 454) the Hoare annotation is: (let ((.cse2 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse4 (+ .cse2 1))) (let ((.cse0 (< 0 .cse4)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) (<= ~Id_MCDC_93~0 28) .cse1) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= ~Id_MCDC_93~0 23) (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse1) (and (<= ~Id_MCDC_93~0 34) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 40) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (let ((.cse3 (* 4294967296 .cse2))) (and (<= .cse2 0) (< (+ .cse3 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (<= ~Id_MCDC_93~0 (+ .cse3 41)) .cse1)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) (<= ~Id_MCDC_93~0 14) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse1 (<= ~Id_MCDC_93~0 18)) (and (<= ~Id_MCDC_93~0 37) (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= ~Id_MCDC_93~0 32) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 16) .cse0 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 22) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 21) .cse1) (and .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) (<= ~Id_MCDC_93~0 39) .cse1) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 41) (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (not (<= .cse4 0)) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= ~Id_MCDC_93~0 26) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and (<= ~Id_MCDC_93~0 33) .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) .cse0 (<= ~Id_MCDC_93~0 35) (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) (<= ~Id_MCDC_93~0 10) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 36) .cse1) (and .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 15) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 12) .cse0 (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1))))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L400(lines 400 486) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,474 INFO L878 garLoopResultBuilder]: At program point L425(lines 425 475) the Hoare annotation is: (let ((.cse2 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse4 (+ .cse2 1))) (let ((.cse0 (< 0 .cse4)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 33) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 26) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 14) .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= ~Id_MCDC_93~0 10) .cse0 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 21) (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= ~Id_MCDC_93~0 37) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1 (<= ~Id_MCDC_93~0 18)) (let ((.cse3 (* 4294967296 .cse2))) (and (<= .cse2 0) (< (+ .cse3 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (not (<= .cse4 0)) (<= ~Id_MCDC_93~0 (+ .cse3 41)) .cse1)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= ~Id_MCDC_93~0 12) (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 23) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) (<= ~Id_MCDC_93~0 34) .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) (<= ~Id_MCDC_93~0 22) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse1) (not (<= |old(~Id_MCDC_93~0)| 9)) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= ~Id_MCDC_93~0 36) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 9)) (and (<= ~Id_MCDC_93~0 16) (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 15) (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 40) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)))))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L392(lines 392 492) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L260(lines 260 582) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L277(lines 277 570) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L244(lines 244 588) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L467(line 467) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 136 636) the Hoare annotation is: true [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L236(lines 236 594) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 467) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L286(lines 286 565) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point mainENTRY(lines 136 636) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(~__tmp_1075_2~0.base)| ~__tmp_1075_2~0.base)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L303(lines 303 553) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L270(lines 270 571) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L262(lines 262 577) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L312(lines 312 548) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L329(lines 329 536) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L296(lines 296 554) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-04-06 14:57:10,475 INFO L878 garLoopResultBuilder]: At program point L164(lines 164 635) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(~__tmp_1075_2~0.base)| ~__tmp_1075_2~0.base)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L288(lines 288 560) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L338(lines 338 531) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L355(lines 355 519) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L322(lines 322 537) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L314(lines 314 543) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L182(lines 182 633) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L364(lines 364 514) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L199(lines 199 621) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L381(lines 381 502) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L348(lines 348 520) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L340(lines 340 526) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,476 INFO L878 garLoopResultBuilder]: At program point L208(lines 208 616) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,477 INFO L878 garLoopResultBuilder]: At program point L423(lines 423 480) the Hoare annotation is: (let ((.cse2 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse4 (+ .cse2 1))) (let ((.cse0 (< 0 .cse4)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 33) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 26) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 14) .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= ~Id_MCDC_93~0 10) .cse0 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 21) (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= ~Id_MCDC_93~0 37) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1 (<= ~Id_MCDC_93~0 18)) (let ((.cse3 (* 4294967296 .cse2))) (and (<= .cse2 0) (< (+ .cse3 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (not (<= .cse4 0)) (<= ~Id_MCDC_93~0 (+ .cse3 41)) .cse1)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= ~Id_MCDC_93~0 12) (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 23) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) (<= ~Id_MCDC_93~0 34) .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) (<= ~Id_MCDC_93~0 22) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse1) (not (<= |old(~Id_MCDC_93~0)| 9)) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= ~Id_MCDC_93~0 36) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 9)) (and (<= ~Id_MCDC_93~0 16) (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 15) (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 40) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)))))) [2022-04-06 14:57:10,477 INFO L878 garLoopResultBuilder]: At program point L390(lines 390 497) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-04-06 14:57:10,477 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 9)) [2022-04-06 14:57:10,477 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(~__tmp_1075_2~0.base)| ~__tmp_1075_2~0.base) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-06 14:57:10,477 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 9)) [2022-04-06 14:57:10,477 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-04-06 14:57:10,477 INFO L878 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 9)) [2022-04-06 14:57:10,477 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-06 14:57:10,477 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-04-06 14:57:10,479 INFO L719 BasicCegarLoop]: Path program histogram: [66, 2] [2022-04-06 14:57:10,480 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-06 14:57:10,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.04 02:57:10 BoogieIcfgContainer [2022-04-06 14:57:10,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-06 14:57:10,515 INFO L158 Benchmark]: Toolchain (without parser) took 525100.76ms. Allocated memory was 197.1MB in the beginning and 496.0MB in the end (delta: 298.8MB). Free memory was 146.1MB in the beginning and 192.9MB in the end (delta: -46.8MB). Peak memory consumption was 328.6MB. Max. memory is 8.0GB. [2022-04-06 14:57:10,515 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-06 14:57:10,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.39ms. Allocated memory is still 197.1MB. Free memory was 145.9MB in the beginning and 166.5MB in the end (delta: -20.6MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. [2022-04-06 14:57:10,516 INFO L158 Benchmark]: Boogie Preprocessor took 67.89ms. Allocated memory is still 197.1MB. Free memory was 166.5MB in the beginning and 162.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-04-06 14:57:10,516 INFO L158 Benchmark]: RCFGBuilder took 847.81ms. Allocated memory is still 197.1MB. Free memory was 162.3MB in the beginning and 135.9MB in the end (delta: 26.4MB). Peak memory consumption was 55.7MB. Max. memory is 8.0GB. [2022-04-06 14:57:10,516 INFO L158 Benchmark]: TraceAbstraction took 523779.96ms. Allocated memory was 197.1MB in the beginning and 496.0MB in the end (delta: 298.8MB). Free memory was 135.4MB in the beginning and 192.9MB in the end (delta: -57.5MB). Peak memory consumption was 317.4MB. Max. memory is 8.0GB. [2022-04-06 14:57:10,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 392.39ms. Allocated memory is still 197.1MB. Free memory was 145.9MB in the beginning and 166.5MB in the end (delta: -20.6MB). Peak memory consumption was 16.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.89ms. Allocated memory is still 197.1MB. Free memory was 166.5MB in the beginning and 162.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 847.81ms. Allocated memory is still 197.1MB. Free memory was 162.3MB in the beginning and 135.9MB in the end (delta: 26.4MB). Peak memory consumption was 55.7MB. Max. memory is 8.0GB. * TraceAbstraction took 523779.96ms. Allocated memory was 197.1MB in the beginning and 496.0MB in the end (delta: 298.8MB). Free memory was 135.4MB in the beginning and 192.9MB in the end (delta: -57.5MB). Peak memory consumption was 317.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 467]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 523.7s, OverallIterations: 34, TraceHistogramMax: 34, PathProgramHistogramMax: 66, EmptinessCheckTime: 0.0s, AutomataDifference: 66.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2708 SdHoareTripleChecker+Valid, 43.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2708 mSDsluCounter, 38918 SdHoareTripleChecker+Invalid, 36.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37601 mSDsCounter, 1676 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112705 IncrementalHoareTripleChecker+Invalid, 114381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1676 mSolverCounterUnsat, 1317 mSDtfsCounter, 112705 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10715 GetRequests, 7893 SyntacticMatches, 43 SemanticMatches, 2779 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28646 ImplicationChecksByTransitivity, 94.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=214occurred in iteration=33, InterpolantAutomatonStates: 1070, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 34 MinimizatonAttempts, 99 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 55 PreInvPairs, 248 NumberOfFragments, 5823 HoareAnnotationTreeSize, 55 FomulaSimplifications, 10311 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 55 FomulaSimplificationsInter, 5978 FormulaSimplificationTreeSizeReductionInter, 5.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((Id_MCDC_93 <= 33 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 33) && 33 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 30) && Id_MCDC_89__Id_MCDC_96 <= 30) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 30 <= Id_MCDC_89__Id_MCDC_96)) || ((((26 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 26) && Id_MCDC_89__Id_MCDC_96 <= 26) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((17 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 17) && Id_MCDC_93 <= 17) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 14 && 0 < Id_MCDC_93 / 4294967296 + 1) && 14 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 14) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 38 && 0 < Id_MCDC_93 / 4294967296 + 1) && 38 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 38) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 10 && 0 < Id_MCDC_93 / 4294967296 + 1) && 10 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 10) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 27 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 27) && Id_MCDC_89__Id_MCDC_96 <= 27) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 28 && 0 < Id_MCDC_93 / 4294967296 + 1) && 28 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 28) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 32 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 32)) || \old(Id_MCDC_93) / 4294967296 + 1 <= 0) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_89__Id_MCDC_96 <= 25) && 25 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 25) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 20 && 20 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 20) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 21) && 21 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 21) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 37 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 37) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 37 <= Id_MCDC_89__Id_MCDC_96)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 24 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 24) && Id_MCDC_93 <= 24) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((18 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 18) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 <= 18)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_89__Id_MCDC_96 <= 29) && 29 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 <= 29)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_89__Id_MCDC_96 <= 39) && Id_MCDC_93 <= 39) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 39 <= Id_MCDC_89__Id_MCDC_96)) || ((((Id_MCDC_93 <= 41 && 41 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 41) && !(Id_MCDC_93 / 4294967296 + 1 <= 0)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 12 && 12 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 12) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((23 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 23) && Id_MCDC_89__Id_MCDC_96 <= 23) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 31 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 31) && 31 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 34 && Id_MCDC_93 <= 34) && 0 < Id_MCDC_93 / 4294967296 + 1) && 34 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((22 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 22) && Id_MCDC_93 <= 22) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((35 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 35) && Id_MCDC_93 <= 35) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || !(\old(Id_MCDC_93) <= 9)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 11) && 11 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 11) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((19 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 19) && Id_MCDC_89__Id_MCDC_96 <= 19) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 13 && 0 < Id_MCDC_93 / 4294967296 + 1) && 13 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 13) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 36 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 36) && 36 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 9 && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 9 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 9)) || ((((Id_MCDC_93 <= 16 && 16 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 16) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 15) && 15 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 15) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 40 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 40) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 40) - ProcedureContractResult [Line: 136]: Procedure Contract for main Derived contract for procedure main: 1 RESULT: Ultimate proved your program to be correct! [2022-04-06 14:57:10,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...