/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_1.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 04:10:03,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 04:10:03,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 04:10:03,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 04:10:03,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 04:10:03,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 04:10:03,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 04:10:03,307 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 04:10:03,335 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 04:10:03,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 04:10:03,335 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 04:10:03,335 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 04:10:03,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 04:10:03,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 04:10:03,337 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 04:10:03,337 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 04:10:03,337 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 04:10:03,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 04:10:03,338 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 04:10:03,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 04:10:03,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 04:10:03,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 04:10:03,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 04:10:03,338 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 04:10:03,338 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 04:10:03,339 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 04:10:03,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 04:10:03,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 04:10:03,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 04:10:03,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 04:10:03,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 04:10:03,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:10:03,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 04:10:03,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 04:10:03,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 04:10:03,341 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 04:10:03,341 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 04:10:03,341 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 04:10:03,341 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 04:10:03,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 04:10:03,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 04:10:03,341 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 04:10:03,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 04:10:03,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 04:10:03,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 04:10:03,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 04:10:03,593 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 04:10:03,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_1.cil-1.c [2022-01-10 04:10:03,644 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76632bb7a/00a340b714564994864f09da9d2ea74c/FLAGa87b09e26 [2022-01-10 04:10:03,992 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 04:10:03,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_1.cil-1.c [2022-01-10 04:10:04,007 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76632bb7a/00a340b714564994864f09da9d2ea74c/FLAGa87b09e26 [2022-01-10 04:10:04,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76632bb7a/00a340b714564994864f09da9d2ea74c [2022-01-10 04:10:04,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 04:10:04,021 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 04:10:04,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 04:10:04,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 04:10:04,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 04:10:04,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12397d0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04, skipping insertion in model container [2022-01-10 04:10:04,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 04:10:04,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 04:10:04,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_1.cil-1.c[35497,35510] [2022-01-10 04:10:04,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:10:04,247 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 04:10:04,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_1.cil-1.c[35497,35510] [2022-01-10 04:10:04,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:10:04,298 INFO L208 MainTranslator]: Completed translation [2022-01-10 04:10:04,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04 WrapperNode [2022-01-10 04:10:04,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 04:10:04,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 04:10:04,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 04:10:04,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 04:10:04,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,340 INFO L137 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 461 [2022-01-10 04:10:04,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 04:10:04,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 04:10:04,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 04:10:04,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 04:10:04,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 04:10:04,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 04:10:04,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 04:10:04,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 04:10:04,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04" (1/1) ... [2022-01-10 04:10:04,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:10:04,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 04:10:04,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 04:10:04,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 04:10:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 04:10:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 04:10:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 04:10:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 04:10:04,510 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 04:10:04,511 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 04:10:04,525 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-10 04:10:04,916 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-01-10 04:10:04,918 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-01-10 04:10:04,918 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 04:10:04,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 04:10:04,927 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 04:10:04,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:10:04 BoogieIcfgContainer [2022-01-10 04:10:04,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 04:10:04,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 04:10:04,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 04:10:04,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 04:10:04,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 04:10:04" (1/3) ... [2022-01-10 04:10:04,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea5de2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:10:04, skipping insertion in model container [2022-01-10 04:10:04,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:10:04" (2/3) ... [2022-01-10 04:10:04,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea5de2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:10:04, skipping insertion in model container [2022-01-10 04:10:04,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:10:04" (3/3) ... [2022-01-10 04:10:04,936 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-1.c [2022-01-10 04:10:04,941 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 04:10:04,941 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 04:10:04,976 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 04:10:04,981 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 04:10:04,981 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 04:10:04,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 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) [2022-01-10 04:10:05,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 04:10:05,001 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:05,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:10:05,002 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:05,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:05,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1457700990, now seen corresponding path program 1 times [2022-01-10 04:10:05,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:05,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870990151] [2022-01-10 04:10:05,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:05,021 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:05,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:05,022 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:05,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 04:10:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:05,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2022-01-10 04:10:05,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:05,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:10:05,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:05,177 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:05,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870990151] [2022-01-10 04:10:05,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870990151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:05,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:05,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:05,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044787397] [2022-01-10 04:10:05,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:05,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:05,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:05,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:05,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:05,208 INFO L87 Difference]: Start difference. First operand has 127 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 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) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2022-01-10 04:10:05,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:05,368 INFO L93 Difference]: Finished difference Result 250 states and 425 transitions. [2022-01-10 04:10:05,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:05,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) Word has length 24 [2022-01-10 04:10:05,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:05,382 INFO L225 Difference]: With dead ends: 250 [2022-01-10 04:10:05,382 INFO L226 Difference]: Without dead ends: 114 [2022-01-10 04:10:05,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:05,391 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 7 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:05,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 323 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:05,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-01-10 04:10:05,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-01-10 04:10:05,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 113 states have (on average 1.5132743362831858) internal successors, (171), 113 states have internal predecessors, (171), 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) [2022-01-10 04:10:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 171 transitions. [2022-01-10 04:10:05,443 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 171 transitions. Word has length 24 [2022-01-10 04:10:05,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:05,444 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 171 transitions. [2022-01-10 04:10:05,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2022-01-10 04:10:05,444 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 171 transitions. [2022-01-10 04:10:05,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-01-10 04:10:05,447 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:05,447 INFO L514 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] [2022-01-10 04:10:05,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-01-10 04:10:05,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:05,655 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:05,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:05,656 INFO L85 PathProgramCache]: Analyzing trace with hash 561711387, now seen corresponding path program 1 times [2022-01-10 04:10:05,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:05,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173702996] [2022-01-10 04:10:05,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:05,657 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:05,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:05,659 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:05,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 04:10:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:05,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:05,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:05,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:10:05,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:05,821 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:05,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173702996] [2022-01-10 04:10:05,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173702996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:05,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:05,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:05,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804549727] [2022-01-10 04:10:05,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:05,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:05,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:05,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:05,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:05,829 INFO L87 Difference]: Start difference. First operand 114 states and 171 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-01-10 04:10:05,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:05,949 INFO L93 Difference]: Finished difference Result 236 states and 358 transitions. [2022-01-10 04:10:05,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:05,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) Word has length 37 [2022-01-10 04:10:05,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:05,953 INFO L225 Difference]: With dead ends: 236 [2022-01-10 04:10:05,953 INFO L226 Difference]: Without dead ends: 132 [2022-01-10 04:10:05,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:05,955 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 13 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:05,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 242 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:05,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-01-10 04:10:05,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2022-01-10 04:10:05,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 128 states have (on average 1.4921875) internal successors, (191), 128 states have internal predecessors, (191), 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) [2022-01-10 04:10:05,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 191 transitions. [2022-01-10 04:10:05,980 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 191 transitions. Word has length 37 [2022-01-10 04:10:05,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:05,980 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 191 transitions. [2022-01-10 04:10:05,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-01-10 04:10:05,981 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 191 transitions. [2022-01-10 04:10:05,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 04:10:05,982 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:05,982 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2022-01-10 04:10:05,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:06,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:06,183 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:06,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:06,184 INFO L85 PathProgramCache]: Analyzing trace with hash 356447844, now seen corresponding path program 1 times [2022-01-10 04:10:06,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:06,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624403748] [2022-01-10 04:10:06,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:06,185 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:06,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:06,186 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:06,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 04:10:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:06,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:06,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:06,343 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-10 04:10:06,343 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:06,343 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:06,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624403748] [2022-01-10 04:10:06,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624403748] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:06,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:06,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:06,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221192253] [2022-01-10 04:10:06,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:06,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:06,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:06,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:06,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:06,350 INFO L87 Difference]: Start difference. First operand 129 states and 191 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-01-10 04:10:06,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:06,481 INFO L93 Difference]: Finished difference Result 269 states and 404 transitions. [2022-01-10 04:10:06,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:06,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) Word has length 51 [2022-01-10 04:10:06,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:06,484 INFO L225 Difference]: With dead ends: 269 [2022-01-10 04:10:06,484 INFO L226 Difference]: Without dead ends: 150 [2022-01-10 04:10:06,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:06,489 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 15 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:06,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 255 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:06,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-01-10 04:10:06,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2022-01-10 04:10:06,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.4689655172413794) internal successors, (213), 145 states have internal predecessors, (213), 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) [2022-01-10 04:10:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 213 transitions. [2022-01-10 04:10:06,503 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 213 transitions. Word has length 51 [2022-01-10 04:10:06,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:06,504 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 213 transitions. [2022-01-10 04:10:06,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-01-10 04:10:06,504 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 213 transitions. [2022-01-10 04:10:06,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 04:10:06,506 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:06,506 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-10 04:10:06,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:06,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:06,715 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:06,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:06,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1231511209, now seen corresponding path program 1 times [2022-01-10 04:10:06,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:06,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874728824] [2022-01-10 04:10:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:06,716 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:06,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:06,717 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:06,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 04:10:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:06,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:06,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:06,889 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-10 04:10:06,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:06,889 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:06,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874728824] [2022-01-10 04:10:06,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874728824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:06,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:06,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:06,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564343392] [2022-01-10 04:10:06,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:06,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:06,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:06,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:06,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:06,891 INFO L87 Difference]: Start difference. First operand 146 states and 213 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-01-10 04:10:07,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:07,022 INFO L93 Difference]: Finished difference Result 325 states and 491 transitions. [2022-01-10 04:10:07,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:07,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) Word has length 68 [2022-01-10 04:10:07,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:07,023 INFO L225 Difference]: With dead ends: 325 [2022-01-10 04:10:07,023 INFO L226 Difference]: Without dead ends: 189 [2022-01-10 04:10:07,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:07,025 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 28 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:07,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 237 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:07,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-01-10 04:10:07,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2022-01-10 04:10:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.3945945945945946) internal successors, (258), 185 states have internal predecessors, (258), 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) [2022-01-10 04:10:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 258 transitions. [2022-01-10 04:10:07,031 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 258 transitions. Word has length 68 [2022-01-10 04:10:07,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:07,031 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 258 transitions. [2022-01-10 04:10:07,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-01-10 04:10:07,032 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 258 transitions. [2022-01-10 04:10:07,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-01-10 04:10:07,033 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:07,033 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-10 04:10:07,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:07,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:07,234 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:07,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:07,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1258017753, now seen corresponding path program 1 times [2022-01-10 04:10:07,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:07,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251566807] [2022-01-10 04:10:07,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:07,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:07,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:07,236 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:07,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 04:10:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:07,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:07,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:07,387 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-10 04:10:07,387 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:07,387 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:07,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251566807] [2022-01-10 04:10:07,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251566807] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:07,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:07,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:07,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732524762] [2022-01-10 04:10:07,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:07,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:07,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:07,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:07,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:07,389 INFO L87 Difference]: Start difference. First operand 186 states and 258 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-01-10 04:10:07,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:07,471 INFO L93 Difference]: Finished difference Result 385 states and 542 transitions. [2022-01-10 04:10:07,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:07,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) Word has length 68 [2022-01-10 04:10:07,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:07,473 INFO L225 Difference]: With dead ends: 385 [2022-01-10 04:10:07,473 INFO L226 Difference]: Without dead ends: 209 [2022-01-10 04:10:07,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:07,474 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 15 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:07,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 260 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:07,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-01-10 04:10:07,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 205. [2022-01-10 04:10:07,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.3823529411764706) internal successors, (282), 204 states have internal predecessors, (282), 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) [2022-01-10 04:10:07,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 282 transitions. [2022-01-10 04:10:07,481 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 282 transitions. Word has length 68 [2022-01-10 04:10:07,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:07,481 INFO L470 AbstractCegarLoop]: Abstraction has 205 states and 282 transitions. [2022-01-10 04:10:07,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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) [2022-01-10 04:10:07,481 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 282 transitions. [2022-01-10 04:10:07,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-10 04:10:07,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:07,484 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-01-10 04:10:07,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:07,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:07,692 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:07,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:07,693 INFO L85 PathProgramCache]: Analyzing trace with hash -901961809, now seen corresponding path program 1 times [2022-01-10 04:10:07,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:07,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241268206] [2022-01-10 04:10:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:07,694 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:07,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:07,695 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:07,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 04:10:07,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:07,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:07,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:07,888 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-01-10 04:10:07,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:07,888 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:07,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241268206] [2022-01-10 04:10:07,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241268206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:07,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:07,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:07,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175983296] [2022-01-10 04:10:07,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:07,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:07,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:07,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:07,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:07,891 INFO L87 Difference]: Start difference. First operand 205 states and 282 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-01-10 04:10:07,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:07,991 INFO L93 Difference]: Finished difference Result 424 states and 592 transitions. [2022-01-10 04:10:07,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:07,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) Word has length 84 [2022-01-10 04:10:07,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:07,993 INFO L225 Difference]: With dead ends: 424 [2022-01-10 04:10:07,993 INFO L226 Difference]: Without dead ends: 229 [2022-01-10 04:10:07,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:07,994 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 13 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:07,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 259 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:07,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2022-01-10 04:10:07,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2022-01-10 04:10:07,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.3688888888888888) internal successors, (308), 225 states have internal predecessors, (308), 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) [2022-01-10 04:10:08,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 308 transitions. [2022-01-10 04:10:08,000 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 308 transitions. Word has length 84 [2022-01-10 04:10:08,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:08,001 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 308 transitions. [2022-01-10 04:10:08,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2022-01-10 04:10:08,001 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 308 transitions. [2022-01-10 04:10:08,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 04:10:08,002 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:08,003 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2022-01-10 04:10:08,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:08,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:08,214 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:08,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:08,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1810291289, now seen corresponding path program 1 times [2022-01-10 04:10:08,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:08,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472233365] [2022-01-10 04:10:08,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:08,215 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:08,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:08,216 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:08,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 04:10:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:08,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:08,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:08,434 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-10 04:10:08,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:08,435 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:08,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472233365] [2022-01-10 04:10:08,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472233365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:08,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:08,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:08,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756212177] [2022-01-10 04:10:08,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:08,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:08,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:08,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:08,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:08,437 INFO L87 Difference]: Start difference. First operand 226 states and 308 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2022-01-10 04:10:08,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:08,462 INFO L93 Difference]: Finished difference Result 655 states and 894 transitions. [2022-01-10 04:10:08,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:08,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) Word has length 104 [2022-01-10 04:10:08,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:08,464 INFO L225 Difference]: With dead ends: 655 [2022-01-10 04:10:08,464 INFO L226 Difference]: Without dead ends: 439 [2022-01-10 04:10:08,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:08,466 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 125 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:08,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 360 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 04:10:08,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-01-10 04:10:08,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2022-01-10 04:10:08,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 438 states have (on average 1.356164383561644) internal successors, (594), 438 states have internal predecessors, (594), 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) [2022-01-10 04:10:08,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 594 transitions. [2022-01-10 04:10:08,475 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 594 transitions. Word has length 104 [2022-01-10 04:10:08,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:08,476 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 594 transitions. [2022-01-10 04:10:08,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2022-01-10 04:10:08,476 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 594 transitions. [2022-01-10 04:10:08,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 04:10:08,478 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:08,478 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2022-01-10 04:10:08,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-01-10 04:10:08,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:08,687 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:08,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash 151283369, now seen corresponding path program 1 times [2022-01-10 04:10:08,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:08,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955623864] [2022-01-10 04:10:08,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:08,688 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:08,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:08,689 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:08,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 04:10:08,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:08,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:08,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:08,882 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-01-10 04:10:08,882 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:08,883 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:08,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955623864] [2022-01-10 04:10:08,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955623864] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:08,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:08,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:08,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45239033] [2022-01-10 04:10:08,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:08,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:08,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:08,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:08,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:08,885 INFO L87 Difference]: Start difference. First operand 439 states and 594 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2022-01-10 04:10:08,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:08,901 INFO L93 Difference]: Finished difference Result 889 states and 1202 transitions. [2022-01-10 04:10:08,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:08,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) Word has length 104 [2022-01-10 04:10:08,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:08,904 INFO L225 Difference]: With dead ends: 889 [2022-01-10 04:10:08,904 INFO L226 Difference]: Without dead ends: 460 [2022-01-10 04:10:08,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:08,907 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 11 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:08,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 341 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 04:10:08,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-01-10 04:10:08,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2022-01-10 04:10:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.3529411764705883) internal successors, (621), 459 states have internal predecessors, (621), 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) [2022-01-10 04:10:08,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 621 transitions. [2022-01-10 04:10:08,919 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 621 transitions. Word has length 104 [2022-01-10 04:10:08,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:08,920 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 621 transitions. [2022-01-10 04:10:08,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2022-01-10 04:10:08,920 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 621 transitions. [2022-01-10 04:10:08,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 04:10:08,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:08,923 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2022-01-10 04:10:08,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:09,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:09,131 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:09,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:09,132 INFO L85 PathProgramCache]: Analyzing trace with hash 178348971, now seen corresponding path program 1 times [2022-01-10 04:10:09,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:09,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966331089] [2022-01-10 04:10:09,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:09,132 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:09,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:09,133 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:09,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 04:10:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:09,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:09,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:09,338 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-01-10 04:10:09,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:09,338 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:09,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966331089] [2022-01-10 04:10:09,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966331089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:09,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:09,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:09,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125914270] [2022-01-10 04:10:09,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:09,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:09,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:09,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:09,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:09,341 INFO L87 Difference]: Start difference. First operand 460 states and 621 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2022-01-10 04:10:09,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:09,356 INFO L93 Difference]: Finished difference Result 937 states and 1263 transitions. [2022-01-10 04:10:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:09,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) Word has length 104 [2022-01-10 04:10:09,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:09,359 INFO L225 Difference]: With dead ends: 937 [2022-01-10 04:10:09,359 INFO L226 Difference]: Without dead ends: 487 [2022-01-10 04:10:09,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:09,360 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 20 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:09,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 313 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 04:10:09,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-01-10 04:10:09,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 487. [2022-01-10 04:10:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 486 states have (on average 1.3477366255144032) internal successors, (655), 486 states have internal predecessors, (655), 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) [2022-01-10 04:10:09,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 655 transitions. [2022-01-10 04:10:09,369 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 655 transitions. Word has length 104 [2022-01-10 04:10:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:09,369 INFO L470 AbstractCegarLoop]: Abstraction has 487 states and 655 transitions. [2022-01-10 04:10:09,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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) [2022-01-10 04:10:09,369 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 655 transitions. [2022-01-10 04:10:09,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 04:10:09,370 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:09,370 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2022-01-10 04:10:09,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:09,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:09,579 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:09,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:09,579 INFO L85 PathProgramCache]: Analyzing trace with hash -492994255, now seen corresponding path program 1 times [2022-01-10 04:10:09,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:09,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [924525008] [2022-01-10 04:10:09,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:09,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:09,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:09,581 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:09,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 04:10:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:09,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:09,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:09,776 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-10 04:10:09,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:09,776 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:09,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [924525008] [2022-01-10 04:10:09,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [924525008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:09,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:09,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:09,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657434470] [2022-01-10 04:10:09,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:09,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:09,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:09,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:09,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:09,778 INFO L87 Difference]: Start difference. First operand 487 states and 655 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-01-10 04:10:09,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:09,805 INFO L93 Difference]: Finished difference Result 1148 states and 1551 transitions. [2022-01-10 04:10:09,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:09,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) Word has length 106 [2022-01-10 04:10:09,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:09,807 INFO L225 Difference]: With dead ends: 1148 [2022-01-10 04:10:09,807 INFO L226 Difference]: Without dead ends: 698 [2022-01-10 04:10:09,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:09,809 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 124 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:09,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 461 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 04:10:09,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2022-01-10 04:10:09,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 698. [2022-01-10 04:10:09,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.345767575322812) internal successors, (938), 697 states have internal predecessors, (938), 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) [2022-01-10 04:10:09,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 938 transitions. [2022-01-10 04:10:09,821 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 938 transitions. Word has length 106 [2022-01-10 04:10:09,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:09,821 INFO L470 AbstractCegarLoop]: Abstraction has 698 states and 938 transitions. [2022-01-10 04:10:09,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2022-01-10 04:10:09,821 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 938 transitions. [2022-01-10 04:10:09,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 04:10:09,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:09,823 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2022-01-10 04:10:09,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:10,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:10,031 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:10,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:10,032 INFO L85 PathProgramCache]: Analyzing trace with hash -627007761, now seen corresponding path program 1 times [2022-01-10 04:10:10,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:10,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012770303] [2022-01-10 04:10:10,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:10,032 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:10,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:10,048 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:10,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 04:10:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:10,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:10,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:10,260 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-01-10 04:10:10,260 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:10,260 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:10,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012770303] [2022-01-10 04:10:10,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012770303] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:10,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:10,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:10,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468239628] [2022-01-10 04:10:10,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:10,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:10,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:10,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:10,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:10,262 INFO L87 Difference]: Start difference. First operand 698 states and 938 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2022-01-10 04:10:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:10,282 INFO L93 Difference]: Finished difference Result 1384 states and 1859 transitions. [2022-01-10 04:10:10,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:10,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) Word has length 106 [2022-01-10 04:10:10,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:10,286 INFO L225 Difference]: With dead ends: 1384 [2022-01-10 04:10:10,286 INFO L226 Difference]: Without dead ends: 723 [2022-01-10 04:10:10,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:10,288 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 10 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:10,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 350 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 04:10:10,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-01-10 04:10:10,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2022-01-10 04:10:10,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 1.3407202216066483) internal successors, (968), 722 states have internal predecessors, (968), 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) [2022-01-10 04:10:10,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 968 transitions. [2022-01-10 04:10:10,301 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 968 transitions. Word has length 106 [2022-01-10 04:10:10,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:10,301 INFO L470 AbstractCegarLoop]: Abstraction has 723 states and 968 transitions. [2022-01-10 04:10:10,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2022-01-10 04:10:10,302 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 968 transitions. [2022-01-10 04:10:10,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-01-10 04:10:10,304 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:10,305 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 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] [2022-01-10 04:10:10,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-01-10 04:10:10,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:10,513 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:10,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:10,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1913560025, now seen corresponding path program 1 times [2022-01-10 04:10:10,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:10,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423328077] [2022-01-10 04:10:10,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:10,515 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:10,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:10,516 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:10,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 04:10:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:10,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:10,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:10,736 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-10 04:10:10,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:10,737 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:10,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423328077] [2022-01-10 04:10:10,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423328077] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:10,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:10,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:10,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796404020] [2022-01-10 04:10:10,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:10,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:10,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:10,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:10,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:10,738 INFO L87 Difference]: Start difference. First operand 723 states and 968 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2022-01-10 04:10:10,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:10,847 INFO L93 Difference]: Finished difference Result 1489 states and 2025 transitions. [2022-01-10 04:10:10,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:10,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) Word has length 131 [2022-01-10 04:10:10,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:10,850 INFO L225 Difference]: With dead ends: 1489 [2022-01-10 04:10:10,850 INFO L226 Difference]: Without dead ends: 803 [2022-01-10 04:10:10,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:10,852 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 14 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:10,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 258 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:10,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2022-01-10 04:10:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 792. [2022-01-10 04:10:10,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 1.3299620733249051) internal successors, (1052), 791 states have internal predecessors, (1052), 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) [2022-01-10 04:10:10,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1052 transitions. [2022-01-10 04:10:10,867 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1052 transitions. Word has length 131 [2022-01-10 04:10:10,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:10,867 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1052 transitions. [2022-01-10 04:10:10,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2022-01-10 04:10:10,867 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1052 transitions. [2022-01-10 04:10:10,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-01-10 04:10:10,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:10,869 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 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] [2022-01-10 04:10:10,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:11,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:11,078 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:11,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:11,079 INFO L85 PathProgramCache]: Analyzing trace with hash 296450083, now seen corresponding path program 1 times [2022-01-10 04:10:11,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:11,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863826967] [2022-01-10 04:10:11,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:11,079 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:11,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:11,080 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:11,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 04:10:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:11,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:11,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:11,356 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-01-10 04:10:11,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:11,356 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:11,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863826967] [2022-01-10 04:10:11,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863826967] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:11,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:11,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:11,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064644532] [2022-01-10 04:10:11,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:11,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:11,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:11,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:11,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:11,358 INFO L87 Difference]: Start difference. First operand 792 states and 1052 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2022-01-10 04:10:11,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:11,468 INFO L93 Difference]: Finished difference Result 1609 states and 2164 transitions. [2022-01-10 04:10:11,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:11,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) Word has length 152 [2022-01-10 04:10:11,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:11,472 INFO L225 Difference]: With dead ends: 1609 [2022-01-10 04:10:11,472 INFO L226 Difference]: Without dead ends: 854 [2022-01-10 04:10:11,473 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:11,473 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 14 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:11,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 260 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:11,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-01-10 04:10:11,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 848. [2022-01-10 04:10:11,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 847 states have (on average 1.3199527744982291) internal successors, (1118), 847 states have internal predecessors, (1118), 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) [2022-01-10 04:10:11,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1118 transitions. [2022-01-10 04:10:11,489 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1118 transitions. Word has length 152 [2022-01-10 04:10:11,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:11,489 INFO L470 AbstractCegarLoop]: Abstraction has 848 states and 1118 transitions. [2022-01-10 04:10:11,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2022-01-10 04:10:11,489 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1118 transitions. [2022-01-10 04:10:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-01-10 04:10:11,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:11,491 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 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] [2022-01-10 04:10:11,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:11,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:11,700 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:11,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:11,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1508988251, now seen corresponding path program 1 times [2022-01-10 04:10:11,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:11,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835793772] [2022-01-10 04:10:11,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:11,701 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:11,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:11,703 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:11,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-01-10 04:10:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:11,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:11,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:11,949 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-01-10 04:10:11,949 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:11,949 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:11,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1835793772] [2022-01-10 04:10:11,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1835793772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:11,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:11,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:11,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066107586] [2022-01-10 04:10:11,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:11,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:11,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:11,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:11,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:11,951 INFO L87 Difference]: Start difference. First operand 848 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2022-01-10 04:10:12,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:12,055 INFO L93 Difference]: Finished difference Result 1761 states and 2374 transitions. [2022-01-10 04:10:12,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:12,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) Word has length 152 [2022-01-10 04:10:12,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:12,058 INFO L225 Difference]: With dead ends: 1761 [2022-01-10 04:10:12,058 INFO L226 Difference]: Without dead ends: 950 [2022-01-10 04:10:12,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:12,060 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 19 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:12,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 261 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:12,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-01-10 04:10:12,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 941. [2022-01-10 04:10:12,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 940 states have (on average 1.304255319148936) internal successors, (1226), 940 states have internal predecessors, (1226), 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) [2022-01-10 04:10:12,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1226 transitions. [2022-01-10 04:10:12,076 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1226 transitions. Word has length 152 [2022-01-10 04:10:12,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:12,077 INFO L470 AbstractCegarLoop]: Abstraction has 941 states and 1226 transitions. [2022-01-10 04:10:12,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2022-01-10 04:10:12,077 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1226 transitions. [2022-01-10 04:10:12,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-10 04:10:12,079 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:12,079 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:10:12,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:12,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:12,288 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:12,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:12,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1534478915, now seen corresponding path program 1 times [2022-01-10 04:10:12,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:12,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785741448] [2022-01-10 04:10:12,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:12,289 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:12,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:12,290 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:12,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-01-10 04:10:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:12,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:12,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:12,634 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-01-10 04:10:12,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:12,635 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:12,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785741448] [2022-01-10 04:10:12,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785741448] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:12,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:12,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:12,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048704226] [2022-01-10 04:10:12,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:12,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:12,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:12,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:12,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:12,637 INFO L87 Difference]: Start difference. First operand 941 states and 1226 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2022-01-10 04:10:12,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:12,663 INFO L93 Difference]: Finished difference Result 2691 states and 3514 transitions. [2022-01-10 04:10:12,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:12,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) Word has length 182 [2022-01-10 04:10:12,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:12,669 INFO L225 Difference]: With dead ends: 2691 [2022-01-10 04:10:12,669 INFO L226 Difference]: Without dead ends: 1787 [2022-01-10 04:10:12,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:12,672 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 125 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:12,672 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 482 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 04:10:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1787 states. [2022-01-10 04:10:12,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1787 to 1785. [2022-01-10 04:10:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1785 states, 1784 states have (on average 1.3060538116591929) internal successors, (2330), 1784 states have internal predecessors, (2330), 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) [2022-01-10 04:10:12,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1785 states to 1785 states and 2330 transitions. [2022-01-10 04:10:12,700 INFO L78 Accepts]: Start accepts. Automaton has 1785 states and 2330 transitions. Word has length 182 [2022-01-10 04:10:12,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:12,701 INFO L470 AbstractCegarLoop]: Abstraction has 1785 states and 2330 transitions. [2022-01-10 04:10:12,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2022-01-10 04:10:12,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1785 states and 2330 transitions. [2022-01-10 04:10:12,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-10 04:10:12,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:12,704 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:10:12,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:12,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:12,913 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:12,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:12,914 INFO L85 PathProgramCache]: Analyzing trace with hash -270959419, now seen corresponding path program 1 times [2022-01-10 04:10:12,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:12,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2033652026] [2022-01-10 04:10:12,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:12,914 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:12,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:12,916 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:12,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-01-10 04:10:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:12,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:12,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:13,267 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2022-01-10 04:10:13,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:13,268 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:13,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2033652026] [2022-01-10 04:10:13,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2033652026] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:13,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:13,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:13,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741195964] [2022-01-10 04:10:13,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:13,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:13,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:13,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:13,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:13,270 INFO L87 Difference]: Start difference. First operand 1785 states and 2330 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2022-01-10 04:10:13,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:13,408 INFO L93 Difference]: Finished difference Result 3764 states and 5029 transitions. [2022-01-10 04:10:13,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:13,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) Word has length 182 [2022-01-10 04:10:13,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:13,415 INFO L225 Difference]: With dead ends: 3764 [2022-01-10 04:10:13,415 INFO L226 Difference]: Without dead ends: 2016 [2022-01-10 04:10:13,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:13,417 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 24 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:13,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 260 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:13,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2016 states. [2022-01-10 04:10:13,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2016 to 2004. [2022-01-10 04:10:13,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 2003 states have (on average 1.2875686470294558) internal successors, (2579), 2003 states have internal predecessors, (2579), 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) [2022-01-10 04:10:13,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 2579 transitions. [2022-01-10 04:10:13,453 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 2579 transitions. Word has length 182 [2022-01-10 04:10:13,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:13,454 INFO L470 AbstractCegarLoop]: Abstraction has 2004 states and 2579 transitions. [2022-01-10 04:10:13,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2022-01-10 04:10:13,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 2579 transitions. [2022-01-10 04:10:13,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-01-10 04:10:13,457 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:13,458 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:10:13,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:13,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:13,667 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:13,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:13,667 INFO L85 PathProgramCache]: Analyzing trace with hash 395122285, now seen corresponding path program 1 times [2022-01-10 04:10:13,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:13,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1278028178] [2022-01-10 04:10:13,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:13,668 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:13,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:13,669 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:13,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-01-10 04:10:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:13,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:13,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:14,020 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-01-10 04:10:14,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:14,020 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:14,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1278028178] [2022-01-10 04:10:14,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1278028178] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:14,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:14,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:14,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074437786] [2022-01-10 04:10:14,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:14,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:14,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:14,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:14,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:14,022 INFO L87 Difference]: Start difference. First operand 2004 states and 2579 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2022-01-10 04:10:14,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:14,151 INFO L93 Difference]: Finished difference Result 4082 states and 5308 transitions. [2022-01-10 04:10:14,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:14,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) Word has length 206 [2022-01-10 04:10:14,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:14,158 INFO L225 Difference]: With dead ends: 4082 [2022-01-10 04:10:14,159 INFO L226 Difference]: Without dead ends: 2115 [2022-01-10 04:10:14,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:14,161 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 20 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:14,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 260 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:14,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2022-01-10 04:10:14,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 2103. [2022-01-10 04:10:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2103 states, 2102 states have (on average 1.28116079923882) internal successors, (2693), 2102 states have internal predecessors, (2693), 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) [2022-01-10 04:10:14,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 2693 transitions. [2022-01-10 04:10:14,198 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 2693 transitions. Word has length 206 [2022-01-10 04:10:14,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:14,198 INFO L470 AbstractCegarLoop]: Abstraction has 2103 states and 2693 transitions. [2022-01-10 04:10:14,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2022-01-10 04:10:14,198 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 2693 transitions. [2022-01-10 04:10:14,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-01-10 04:10:14,202 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:14,202 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:10:14,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:14,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:14,411 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:14,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:14,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1925105106, now seen corresponding path program 1 times [2022-01-10 04:10:14,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:14,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312461676] [2022-01-10 04:10:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:14,412 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:14,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:14,413 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:14,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-01-10 04:10:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:14,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:14,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-01-10 04:10:14,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:14,748 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:14,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312461676] [2022-01-10 04:10:14,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312461676] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:14,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:14,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:14,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144380055] [2022-01-10 04:10:14,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:14,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:14,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:14,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:14,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:14,750 INFO L87 Difference]: Start difference. First operand 2103 states and 2693 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2022-01-10 04:10:14,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:14,885 INFO L93 Difference]: Finished difference Result 4403 states and 5770 transitions. [2022-01-10 04:10:14,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:14,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) Word has length 217 [2022-01-10 04:10:14,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:14,892 INFO L225 Difference]: With dead ends: 4403 [2022-01-10 04:10:14,893 INFO L226 Difference]: Without dead ends: 2337 [2022-01-10 04:10:14,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:14,912 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 25 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:14,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 256 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:14,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2022-01-10 04:10:14,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2325. [2022-01-10 04:10:14,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 2324 states have (on average 1.2672117039586919) internal successors, (2945), 2324 states have internal predecessors, (2945), 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) [2022-01-10 04:10:14,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 2945 transitions. [2022-01-10 04:10:14,951 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 2945 transitions. Word has length 217 [2022-01-10 04:10:14,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:14,951 INFO L470 AbstractCegarLoop]: Abstraction has 2325 states and 2945 transitions. [2022-01-10 04:10:14,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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) [2022-01-10 04:10:14,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 2945 transitions. [2022-01-10 04:10:14,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-01-10 04:10:14,956 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:14,956 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:10:14,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:15,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:15,166 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:15,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:15,166 INFO L85 PathProgramCache]: Analyzing trace with hash -101941725, now seen corresponding path program 1 times [2022-01-10 04:10:15,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:15,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754893263] [2022-01-10 04:10:15,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:15,167 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:15,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:15,168 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:15,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-01-10 04:10:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:15,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:15,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:15,547 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-01-10 04:10:15,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:15,547 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:15,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754893263] [2022-01-10 04:10:15,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754893263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:15,547 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:15,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:15,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789806836] [2022-01-10 04:10:15,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:15,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:15,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:15,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:15,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:15,549 INFO L87 Difference]: Start difference. First operand 2325 states and 2945 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2022-01-10 04:10:15,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:15,693 INFO L93 Difference]: Finished difference Result 4865 states and 6310 transitions. [2022-01-10 04:10:15,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:15,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) Word has length 253 [2022-01-10 04:10:15,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:15,701 INFO L225 Difference]: With dead ends: 4865 [2022-01-10 04:10:15,701 INFO L226 Difference]: Without dead ends: 2577 [2022-01-10 04:10:15,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:15,705 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 33 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:15,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 253 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:15,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2022-01-10 04:10:15,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 2571. [2022-01-10 04:10:15,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2570 states have (on average 1.253307392996109) internal successors, (3221), 2570 states have internal predecessors, (3221), 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) [2022-01-10 04:10:15,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3221 transitions. [2022-01-10 04:10:15,747 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3221 transitions. Word has length 253 [2022-01-10 04:10:15,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:15,747 INFO L470 AbstractCegarLoop]: Abstraction has 2571 states and 3221 transitions. [2022-01-10 04:10:15,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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) [2022-01-10 04:10:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3221 transitions. [2022-01-10 04:10:15,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-01-10 04:10:15,752 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:15,752 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:10:15,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:15,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:15,962 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:15,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:15,963 INFO L85 PathProgramCache]: Analyzing trace with hash 24153777, now seen corresponding path program 1 times [2022-01-10 04:10:15,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:15,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754145766] [2022-01-10 04:10:15,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:15,963 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:15,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:15,964 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:15,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-01-10 04:10:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:16,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:16,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:16,434 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-01-10 04:10:16,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:16,435 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:16,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754145766] [2022-01-10 04:10:16,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754145766] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:16,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:16,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:16,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120696005] [2022-01-10 04:10:16,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:16,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:16,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:16,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:16,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:16,436 INFO L87 Difference]: Start difference. First operand 2571 states and 3221 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2022-01-10 04:10:16,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:16,484 INFO L93 Difference]: Finished difference Result 7255 states and 9117 transitions. [2022-01-10 04:10:16,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:16,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) Word has length 254 [2022-01-10 04:10:16,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:16,498 INFO L225 Difference]: With dead ends: 7255 [2022-01-10 04:10:16,499 INFO L226 Difference]: Without dead ends: 4721 [2022-01-10 04:10:16,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:16,520 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 84 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:16,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 406 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 04:10:16,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4721 states. [2022-01-10 04:10:16,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4721 to 4719. [2022-01-10 04:10:16,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4719 states, 4718 states have (on average 1.2558287409919457) internal successors, (5925), 4718 states have internal predecessors, (5925), 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) [2022-01-10 04:10:16,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4719 states to 4719 states and 5925 transitions. [2022-01-10 04:10:16,596 INFO L78 Accepts]: Start accepts. Automaton has 4719 states and 5925 transitions. Word has length 254 [2022-01-10 04:10:16,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:16,597 INFO L470 AbstractCegarLoop]: Abstraction has 4719 states and 5925 transitions. [2022-01-10 04:10:16,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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) [2022-01-10 04:10:16,597 INFO L276 IsEmpty]: Start isEmpty. Operand 4719 states and 5925 transitions. [2022-01-10 04:10:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-01-10 04:10:16,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:16,604 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:10:16,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:16,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:16,814 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:16,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:16,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1277617296, now seen corresponding path program 1 times [2022-01-10 04:10:16,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:16,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568007130] [2022-01-10 04:10:16,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:16,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:16,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:16,817 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:16,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-01-10 04:10:16,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:16,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 04:10:16,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:17,270 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-01-10 04:10:17,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:10:17,558 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2022-01-10 04:10:17,558 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:17,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568007130] [2022-01-10 04:10:17,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568007130] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:10:17,559 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:10:17,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 04:10:17,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094379993] [2022-01-10 04:10:17,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:10:17,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 04:10:17,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:17,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 04:10:17,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 04:10:17,560 INFO L87 Difference]: Start difference. First operand 4719 states and 5925 transitions. Second operand has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 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) [2022-01-10 04:10:18,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:18,183 INFO L93 Difference]: Finished difference Result 13109 states and 16595 transitions. [2022-01-10 04:10:18,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 04:10:18,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 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) Word has length 292 [2022-01-10 04:10:18,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:18,220 INFO L225 Difference]: With dead ends: 13109 [2022-01-10 04:10:18,220 INFO L226 Difference]: Without dead ends: 8427 [2022-01-10 04:10:18,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-01-10 04:10:18,225 INFO L933 BasicCegarLoop]: 280 mSDtfsCounter, 441 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:18,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [441 Valid, 834 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 04:10:18,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8427 states. [2022-01-10 04:10:18,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8427 to 6571. [2022-01-10 04:10:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6571 states, 6570 states have (on average 1.2789954337899543) internal successors, (8403), 6570 states have internal predecessors, (8403), 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) [2022-01-10 04:10:18,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6571 states to 6571 states and 8403 transitions. [2022-01-10 04:10:18,376 INFO L78 Accepts]: Start accepts. Automaton has 6571 states and 8403 transitions. Word has length 292 [2022-01-10 04:10:18,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:18,377 INFO L470 AbstractCegarLoop]: Abstraction has 6571 states and 8403 transitions. [2022-01-10 04:10:18,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 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) [2022-01-10 04:10:18,377 INFO L276 IsEmpty]: Start isEmpty. Operand 6571 states and 8403 transitions. [2022-01-10 04:10:18,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2022-01-10 04:10:18,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:18,387 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 10, 9, 9, 8, 8, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:10:18,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:18,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:18,597 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:18,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:18,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1501783875, now seen corresponding path program 1 times [2022-01-10 04:10:18,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:18,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152921217] [2022-01-10 04:10:18,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:18,598 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:18,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:18,599 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:18,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-01-10 04:10:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:18,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-10 04:10:18,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:19,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2022-01-10 04:10:19,087 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:10:19,088 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:19,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152921217] [2022-01-10 04:10:19,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152921217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:10:19,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:10:19,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 04:10:19,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873423080] [2022-01-10 04:10:19,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:10:19,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 04:10:19,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:19,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 04:10:19,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:19,089 INFO L87 Difference]: Start difference. First operand 6571 states and 8403 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2022-01-10 04:10:19,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:19,266 INFO L93 Difference]: Finished difference Result 12779 states and 16703 transitions. [2022-01-10 04:10:19,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 04:10:19,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) Word has length 331 [2022-01-10 04:10:19,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:19,273 INFO L225 Difference]: With dead ends: 12779 [2022-01-10 04:10:19,273 INFO L226 Difference]: Without dead ends: 2845 [2022-01-10 04:10:19,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 04:10:19,281 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 27 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:19,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 260 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:19,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2845 states. [2022-01-10 04:10:19,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2845 to 2609. [2022-01-10 04:10:19,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2609 states, 2608 states have (on average 1.2465490797546013) internal successors, (3251), 2608 states have internal predecessors, (3251), 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) [2022-01-10 04:10:19,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2609 states to 2609 states and 3251 transitions. [2022-01-10 04:10:19,324 INFO L78 Accepts]: Start accepts. Automaton has 2609 states and 3251 transitions. Word has length 331 [2022-01-10 04:10:19,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:19,325 INFO L470 AbstractCegarLoop]: Abstraction has 2609 states and 3251 transitions. [2022-01-10 04:10:19,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2022-01-10 04:10:19,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2609 states and 3251 transitions. [2022-01-10 04:10:19,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2022-01-10 04:10:19,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:10:19,333 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 10, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:10:19,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-01-10 04:10:19,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:19,542 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:10:19,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:10:19,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1076313372, now seen corresponding path program 1 times [2022-01-10 04:10:19,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:10:19,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345234431] [2022-01-10 04:10:19,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:10:19,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:10:19,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:10:19,545 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:10:19,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-01-10 04:10:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:10:19,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-10 04:10:19,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:10:20,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2051 backedges. 1287 proven. 14 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2022-01-10 04:10:20,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:10:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 2051 backedges. 1287 proven. 14 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2022-01-10 04:10:20,726 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:10:20,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345234431] [2022-01-10 04:10:20,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345234431] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:10:20,726 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:10:20,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-01-10 04:10:20,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607044542] [2022-01-10 04:10:20,726 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:10:20,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 04:10:20,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:10:20,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 04:10:20,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-10 04:10:20,728 INFO L87 Difference]: Start difference. First operand 2609 states and 3251 transitions. Second operand has 6 states, 6 states have (on average 43.666666666666664) internal successors, (262), 6 states have internal predecessors, (262), 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) [2022-01-10 04:10:20,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:10:20,884 INFO L93 Difference]: Finished difference Result 2844 states and 3549 transitions. [2022-01-10 04:10:20,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 04:10:20,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 43.666666666666664) internal successors, (262), 6 states have internal predecessors, (262), 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) Word has length 443 [2022-01-10 04:10:20,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:10:20,892 INFO L225 Difference]: With dead ends: 2844 [2022-01-10 04:10:20,892 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 04:10:20,894 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 882 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-10 04:10:20,895 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 134 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:10:20,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 206 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:10:20,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 04:10:20,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 04:10:20,896 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) [2022-01-10 04:10:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 04:10:20,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 443 [2022-01-10 04:10:20,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:10:20,897 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 04:10:20,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.666666666666664) internal successors, (262), 6 states have internal predecessors, (262), 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) [2022-01-10 04:10:20,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 04:10:20,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 04:10:20,900 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-10 04:10:20,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-01-10 04:10:21,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:10:21,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 04:10:23,655 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 371) no Hoare annotation was computed. [2022-01-10 04:10:23,656 INFO L858 garLoopResultBuilder]: For program point L366-2(lines 366 371) no Hoare annotation was computed. [2022-01-10 04:10:23,656 INFO L858 garLoopResultBuilder]: For program point L234(lines 234 237) no Hoare annotation was computed. [2022-01-10 04:10:23,656 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 495) no Hoare annotation was computed. [2022-01-10 04:10:23,656 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 506) no Hoare annotation was computed. [2022-01-10 04:10:23,656 INFO L858 garLoopResultBuilder]: For program point L135(lines 135 517) no Hoare annotation was computed. [2022-01-10 04:10:23,656 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 106) no Hoare annotation was computed. [2022-01-10 04:10:23,656 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 466 468) no Hoare annotation was computed. [2022-01-10 04:10:23,656 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 270) no Hoare annotation was computed. [2022-01-10 04:10:23,656 INFO L854 garLoopResultBuilder]: At program point L202(lines 198 496) the Hoare annotation is: (let ((.cse1 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse0 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|)) (.cse3 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|))) (.cse2 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 .cse1 .cse2) (and (or (and (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4560 32)) .cse1) (and .cse3 .cse1 .cse2)) (not (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4400 32)))) (and (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse2) (and .cse0 .cse3 .cse2))) [2022-01-10 04:10:23,657 INFO L854 garLoopResultBuilder]: At program point L136(lines 132 518) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| (_ bv1 32))) (.cse0 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|)) (.cse1 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1) (and .cse2 (not (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4400 32))) .cse1) (and .cse2 .cse0 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) .cse1) (and (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse1))) [2022-01-10 04:10:23,657 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 105) no Hoare annotation was computed. [2022-01-10 04:10:23,657 INFO L861 garLoopResultBuilder]: At program point L566(lines 558 568) the Hoare annotation is: true [2022-01-10 04:10:23,657 INFO L858 garLoopResultBuilder]: For program point L335(lines 335 337) no Hoare annotation was computed. [2022-01-10 04:10:23,657 INFO L858 garLoopResultBuilder]: For program point L335-2(lines 211 490) no Hoare annotation was computed. [2022-01-10 04:10:23,657 INFO L858 garLoopResultBuilder]: For program point L402(lines 402 405) no Hoare annotation was computed. [2022-01-10 04:10:23,657 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 494) no Hoare annotation was computed. [2022-01-10 04:10:23,657 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 505) no Hoare annotation was computed. [2022-01-10 04:10:23,657 INFO L858 garLoopResultBuilder]: For program point L138(lines 138 516) no Hoare annotation was computed. [2022-01-10 04:10:23,657 INFO L858 garLoopResultBuilder]: For program point L535(lines 535 539) no Hoare annotation was computed. [2022-01-10 04:10:23,657 INFO L858 garLoopResultBuilder]: For program point L238(lines 238 241) no Hoare annotation was computed. [2022-01-10 04:10:23,657 INFO L854 garLoopResultBuilder]: At program point L205(lines 204 494) the Hoare annotation is: (let ((.cse0 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse2 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|)) (.cse1 (= (_ bv4352 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and (= (_ bv3 32) |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse0 .cse1) (and (= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| (_ bv4560 32)) .cse2 .cse1) (and .cse2 .cse0 .cse1) (and (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse2 .cse1))) [2022-01-10 04:10:23,657 INFO L854 garLoopResultBuilder]: At program point L172(lines 162 508) the Hoare annotation is: (and (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|) (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) [2022-01-10 04:10:23,658 INFO L858 garLoopResultBuilder]: For program point L437(lines 437 439) no Hoare annotation was computed. [2022-01-10 04:10:23,658 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 493) no Hoare annotation was computed. [2022-01-10 04:10:23,658 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 504) no Hoare annotation was computed. [2022-01-10 04:10:23,658 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 515) no Hoare annotation was computed. [2022-01-10 04:10:23,658 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 86 556) no Hoare annotation was computed. [2022-01-10 04:10:23,658 INFO L858 garLoopResultBuilder]: For program point L472(lines 472 474) no Hoare annotation was computed. [2022-01-10 04:10:23,658 INFO L858 garLoopResultBuilder]: For program point L472-2(lines 472 474) no Hoare annotation was computed. [2022-01-10 04:10:23,658 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 309) no Hoare annotation was computed. [2022-01-10 04:10:23,658 INFO L858 garLoopResultBuilder]: For program point L307-2(lines 211 490) no Hoare annotation was computed. [2022-01-10 04:10:23,658 INFO L861 garLoopResultBuilder]: At program point L208(lines 207 493) the Hoare annotation is: true [2022-01-10 04:10:23,658 INFO L854 garLoopResultBuilder]: At program point L142(lines 138 516) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|)) (.cse1 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1) (and (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse1))) [2022-01-10 04:10:23,658 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2022-01-10 04:10:23,659 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 444) no Hoare annotation was computed. [2022-01-10 04:10:23,659 INFO L858 garLoopResultBuilder]: For program point L440-2(lines 440 444) no Hoare annotation was computed. [2022-01-10 04:10:23,659 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 345) no Hoare annotation was computed. [2022-01-10 04:10:23,659 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 277) no Hoare annotation was computed. [2022-01-10 04:10:23,659 INFO L858 garLoopResultBuilder]: For program point L341-2(lines 341 345) no Hoare annotation was computed. [2022-01-10 04:10:23,659 INFO L858 garLoopResultBuilder]: For program point L275-2(lines 211 490) no Hoare annotation was computed. [2022-01-10 04:10:23,659 INFO L861 garLoopResultBuilder]: At program point L210(lines 209 493) the Hoare annotation is: true [2022-01-10 04:10:23,659 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 503) no Hoare annotation was computed. [2022-01-10 04:10:23,659 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 514) no Hoare annotation was computed. [2022-01-10 04:10:23,659 INFO L858 garLoopResultBuilder]: For program point L111(lines 111 525) no Hoare annotation was computed. [2022-01-10 04:10:23,659 INFO L854 garLoopResultBuilder]: At program point L178(lines 174 504) the Hoare annotation is: (and (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|) (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) [2022-01-10 04:10:23,659 INFO L854 garLoopResultBuilder]: At program point L112(lines 111 525) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv12292 32)))) (or (and (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse1) (and (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| (_ bv0 32)) .cse1) (and .cse0 .cse1 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)))) [2022-01-10 04:10:23,659 INFO L858 garLoopResultBuilder]: For program point L410(lines 410 412) no Hoare annotation was computed. [2022-01-10 04:10:23,660 INFO L858 garLoopResultBuilder]: For program point L377(lines 377 379) no Hoare annotation was computed. [2022-01-10 04:10:23,660 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 502) no Hoare annotation was computed. [2022-01-10 04:10:23,660 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 513) no Hoare annotation was computed. [2022-01-10 04:10:23,660 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 524) no Hoare annotation was computed. [2022-01-10 04:10:23,660 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 480) no Hoare annotation was computed. [2022-01-10 04:10:23,660 INFO L858 garLoopResultBuilder]: For program point L478-2(lines 478 480) no Hoare annotation was computed. [2022-01-10 04:10:23,660 INFO L854 garLoopResultBuilder]: At program point L148(lines 144 514) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|)) (.cse1 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1) (and .cse0 (= (_ bv3 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1) (and (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse1))) [2022-01-10 04:10:23,660 INFO L861 garLoopResultBuilder]: At program point L545(lines 107 546) the Hoare annotation is: true [2022-01-10 04:10:23,660 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 285) no Hoare annotation was computed. [2022-01-10 04:10:23,660 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 251) no Hoare annotation was computed. [2022-01-10 04:10:23,660 INFO L858 garLoopResultBuilder]: For program point L281-2(lines 281 285) no Hoare annotation was computed. [2022-01-10 04:10:23,660 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 318) no Hoare annotation was computed. [2022-01-10 04:10:23,660 INFO L854 garLoopResultBuilder]: At program point L216(lines 114 524) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|)) (.cse1 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1) (and (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| (_ bv0 32)) (not (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4400 32))) .cse1) (and (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse1))) [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 501) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 512) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 523) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L854 garLoopResultBuilder]: At program point L184(lines 180 502) the Hoare annotation is: (and (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|) (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L483(lines 483 485) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L450(lines 450 461) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 431) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L417-1(lines 417 431) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L450-2(lines 450 461) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 500) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 511) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 522) no Hoare annotation was computed. [2022-01-10 04:10:23,661 INFO L858 garLoopResultBuilder]: For program point L550(lines 550 552) no Hoare annotation was computed. [2022-01-10 04:10:23,662 INFO L858 garLoopResultBuilder]: For program point L550-2(lines 550 552) no Hoare annotation was computed. [2022-01-10 04:10:23,662 INFO L854 garLoopResultBuilder]: At program point L154(lines 150 512) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|))) (or (and .cse0 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (and (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0))) [2022-01-10 04:10:23,662 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 355) no Hoare annotation was computed. [2022-01-10 04:10:23,662 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 223) no Hoare annotation was computed. [2022-01-10 04:10:23,662 INFO L858 garLoopResultBuilder]: For program point L221-2(lines 221 223) no Hoare annotation was computed. [2022-01-10 04:10:23,662 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 389) no Hoare annotation was computed. [2022-01-10 04:10:23,662 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 499) no Hoare annotation was computed. [2022-01-10 04:10:23,662 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 510) no Hoare annotation was computed. [2022-01-10 04:10:23,662 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 521) no Hoare annotation was computed. [2022-01-10 04:10:23,662 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 427) no Hoare annotation was computed. [2022-01-10 04:10:23,662 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-10 04:10:23,662 INFO L854 garLoopResultBuilder]: At program point L190(lines 186 500) the Hoare annotation is: (let ((.cse0 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|) .cse0) (and (not (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4400 32))) (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0))) [2022-01-10 04:10:23,662 INFO L858 garLoopResultBuilder]: For program point L455(lines 455 458) no Hoare annotation was computed. [2022-01-10 04:10:23,663 INFO L858 garLoopResultBuilder]: For program point L323(lines 323 325) no Hoare annotation was computed. [2022-01-10 04:10:23,663 INFO L858 garLoopResultBuilder]: For program point L290-1(lines 290 300) no Hoare annotation was computed. [2022-01-10 04:10:23,663 INFO L861 garLoopResultBuilder]: At program point L555(lines 22 557) the Hoare annotation is: true [2022-01-10 04:10:23,663 INFO L854 garLoopResultBuilder]: At program point L324(lines 86 556) the Hoare annotation is: false [2022-01-10 04:10:23,663 INFO L858 garLoopResultBuilder]: For program point L192(lines 192 498) no Hoare annotation was computed. [2022-01-10 04:10:23,666 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 509) no Hoare annotation was computed. [2022-01-10 04:10:23,666 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 520) no Hoare annotation was computed. [2022-01-10 04:10:23,666 INFO L858 garLoopResultBuilder]: For program point L226(lines 226 229) no Hoare annotation was computed. [2022-01-10 04:10:23,666 INFO L854 garLoopResultBuilder]: At program point L160(lines 156 510) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|)) (.cse1 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1) (and (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse1) (and .cse0 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) .cse1))) [2022-01-10 04:10:23,666 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 100) no Hoare annotation was computed. [2022-01-10 04:10:23,666 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-10 04:10:23,666 INFO L854 garLoopResultBuilder]: At program point L491(lines 108 544) the Hoare annotation is: (let ((.cse4 (= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| (_ bv4560 32))) (.cse1 (= (_ bv4352 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse6 (= (_ bv4512 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse5 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4560 32))) (.cse3 (= (_ bv4528 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse0 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse2 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|))) (or (and (= (_ bv3 32) |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse0 .cse1) (and .cse2 .cse3) (and .cse4 .cse2 .cse5) (and (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4416 32)) .cse2 (= (_ bv3 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (and .cse2 (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4496 32))) (and .cse2 (= (_ bv4464 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (and .cse4 .cse2 .cse1) (and .cse2 .cse6) (and .cse6 .cse0) (and .cse5 .cse0) (and .cse2 .cse0) (and .cse3 .cse0) (and (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv3 32))) (and (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse2) (and (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| (_ bv0 32)) (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4368 32))) (and (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| (_ bv1 32)) (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4384 32))) (and .cse2 (= (_ bv4480 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) [2022-01-10 04:10:23,666 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 328) no Hoare annotation was computed. [2022-01-10 04:10:23,667 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 262) no Hoare annotation was computed. [2022-01-10 04:10:23,667 INFO L858 garLoopResultBuilder]: For program point L260-2(lines 211 490) no Hoare annotation was computed. [2022-01-10 04:10:23,667 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 397) no Hoare annotation was computed. [2022-01-10 04:10:23,667 INFO L858 garLoopResultBuilder]: For program point L393-2(lines 211 490) no Hoare annotation was computed. [2022-01-10 04:10:23,667 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 296) no Hoare annotation was computed. [2022-01-10 04:10:23,667 INFO L858 garLoopResultBuilder]: For program point L294-2(lines 292 300) no Hoare annotation was computed. [2022-01-10 04:10:23,667 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 497) no Hoare annotation was computed. [2022-01-10 04:10:23,667 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 508) no Hoare annotation was computed. [2022-01-10 04:10:23,667 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 519) no Hoare annotation was computed. [2022-01-10 04:10:23,667 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 542) no Hoare annotation was computed. [2022-01-10 04:10:23,667 INFO L854 garLoopResultBuilder]: At program point L196(lines 192 498) the Hoare annotation is: (let ((.cse0 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|) .cse0) (and (not (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4400 32))) (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0))) [2022-01-10 04:10:23,667 INFO L854 garLoopResultBuilder]: At program point L130(lines 126 520) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) |ULTIMATE.start_ssl3_connect_~s__hit~0#1|)) (.cse1 (not (= (_ bv4432 32) |ULTIMATE.start_ssl3_connect_~s__state~0#1|)))) (or (and .cse0 (= (_ bv2 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1) (and (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| (_ bv0 32)) (not (= |ULTIMATE.start_ssl3_connect_~s__state~0#1| (_ bv4400 32))) .cse1) (and (= (_ bv4 32) |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse1))) [2022-01-10 04:10:23,667 INFO L858 garLoopResultBuilder]: For program point L97(lines 97 99) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L97-2(lines 94 100) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 541) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 364) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 554) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 533) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L528-2(lines 527 541) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 496) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 507) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 518) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 243) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L232-2(lines 211 490) no Hoare annotation was computed. [2022-01-10 04:10:23,668 INFO L858 garLoopResultBuilder]: For program point L530(lines 530 532) no Hoare annotation was computed. [2022-01-10 04:10:23,675 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:10:23,676 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-10 04:10:23,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 04:10:23 BoogieIcfgContainer [2022-01-10 04:10:23,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-10 04:10:23,712 INFO L158 Benchmark]: Toolchain (without parser) took 19690.35ms. Allocated memory was 183.5MB in the beginning and 355.5MB in the end (delta: 172.0MB). Free memory was 132.2MB in the beginning and 234.4MB in the end (delta: -102.2MB). Peak memory consumption was 201.1MB. Max. memory is 8.0GB. [2022-01-10 04:10:23,712 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-10 04:10:23,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.22ms. Allocated memory was 183.5MB in the beginning and 246.4MB in the end (delta: 62.9MB). Free memory was 132.0MB in the beginning and 218.0MB in the end (delta: -86.1MB). Peak memory consumption was 12.9MB. Max. memory is 8.0GB. [2022-01-10 04:10:23,712 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.11ms. Allocated memory is still 246.4MB. Free memory was 218.0MB in the beginning and 215.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-10 04:10:23,713 INFO L158 Benchmark]: Boogie Preprocessor took 28.43ms. Allocated memory is still 246.4MB. Free memory was 215.4MB in the beginning and 213.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-10 04:10:23,713 INFO L158 Benchmark]: RCFGBuilder took 559.48ms. Allocated memory is still 246.4MB. Free memory was 213.3MB in the beginning and 188.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2022-01-10 04:10:23,713 INFO L158 Benchmark]: TraceAbstraction took 18780.43ms. Allocated memory was 246.4MB in the beginning and 355.5MB in the end (delta: 109.1MB). Free memory was 187.6MB in the beginning and 234.4MB in the end (delta: -46.8MB). Peak memory consumption was 194.1MB. Max. memory is 8.0GB. [2022-01-10 04:10:23,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 276.22ms. Allocated memory was 183.5MB in the beginning and 246.4MB in the end (delta: 62.9MB). Free memory was 132.0MB in the beginning and 218.0MB in the end (delta: -86.1MB). Peak memory consumption was 12.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.11ms. Allocated memory is still 246.4MB. Free memory was 218.0MB in the beginning and 215.4MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.43ms. Allocated memory is still 246.4MB. Free memory was 215.4MB in the beginning and 213.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 559.48ms. Allocated memory is still 246.4MB. Free memory was 213.3MB in the beginning and 188.1MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 18780.43ms. Allocated memory was 246.4MB in the beginning and 355.5MB in the end (delta: 109.1MB). Free memory was 187.6MB in the beginning and 234.4MB in the end (delta: -46.8MB). Peak memory consumption was 194.1MB. 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: 554]: 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 1 procedures, 127 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.7s, OverallIterations: 23, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1341 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1341 mSDsluCounter, 7397 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2917 mSDsCounter, 409 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2529 IncrementalHoareTripleChecker+Invalid, 2938 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 409 mSolverCounterUnsat, 4480 mSDtfsCounter, 2529 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4373 GetRequests, 4338 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6571occurred in iteration=21, InterpolantAutomatonStates: 78, 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, 23 MinimizatonAttempts, 2181 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 249 NumberOfFragments, 561 HoareAnnotationTreeSize, 22 FomulaSimplifications, 1132 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 22 FomulaSimplificationsInter, 4362 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 3651 NumberOfCodeBlocks, 3651 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 4361 ConstructedInterpolants, 0 QuantifiedInterpolants, 6068 SizeOfPredicates, 4 NumberOfNonLiveVariables, 4697 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 25 InterpolantComputations, 21 PerfectInterpolantSequences, 12038/12102 InterpolantCoveringCapability, 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: 198]: Loop Invariant Derived loop invariant: ((((0bv32 == s__hit && 2bv32 == blastFlag) && !(4432bv32 == s__state)) || (((s__state == 4560bv32 && 2bv32 == blastFlag) || ((!(4432bv32 == s__s3__tmp__next_state___0) && 2bv32 == blastFlag) && !(4432bv32 == s__state))) && !(s__state == 4400bv32))) || ((4bv32 == blastFlag && 0bv32 == s__hit) && !(4432bv32 == s__state))) || ((0bv32 == s__hit && !(4432bv32 == s__s3__tmp__next_state___0)) && !(4432bv32 == s__state)) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: (((4bv32 == blastFlag && 0bv32 == s__hit) && s__state == 12292bv32) || (blastFlag == 0bv32 && s__state == 12292bv32)) || ((0bv32 == s__hit && s__state == 12292bv32) && 2bv32 == blastFlag) - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: (((((((((((((((((3bv32 == s__s3__tmp__next_state___0 && 2bv32 == blastFlag) && 4352bv32 == s__state) || (0bv32 == s__hit && 4528bv32 == s__state)) || ((s__s3__tmp__next_state___0 == 4560bv32 && 0bv32 == s__hit) && s__state == 4560bv32)) || ((s__state == 4416bv32 && 0bv32 == s__hit) && 3bv32 == blastFlag)) || (0bv32 == s__hit && s__state == 4496bv32)) || (0bv32 == s__hit && 4464bv32 == s__state)) || ((s__s3__tmp__next_state___0 == 4560bv32 && 0bv32 == s__hit) && 4352bv32 == s__state)) || (0bv32 == s__hit && 4512bv32 == s__state)) || (4512bv32 == s__state && 2bv32 == blastFlag)) || (s__state == 4560bv32 && 2bv32 == blastFlag)) || (0bv32 == s__hit && 2bv32 == blastFlag)) || (4528bv32 == s__state && 2bv32 == blastFlag)) || (!(4432bv32 == s__s3__tmp__next_state___0) && s__state == 3bv32)) || (4bv32 == blastFlag && 0bv32 == s__hit)) || (blastFlag == 0bv32 && s__state == 4368bv32)) || (blastFlag == 1bv32 && s__state == 4384bv32)) || (0bv32 == s__hit && 4480bv32 == s__state) - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: (((0bv32 == s__hit && 2bv32 == blastFlag) && !(4432bv32 == s__state)) || ((blastFlag == 0bv32 && !(s__state == 4400bv32)) && !(4432bv32 == s__state))) || ((4bv32 == blastFlag && 0bv32 == s__hit) && !(4432bv32 == s__state)) - InvariantResult [Line: 207]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: (((0bv32 == s__hit && 2bv32 == blastFlag) && !(4432bv32 == s__state)) || ((4bv32 == blastFlag && 0bv32 == s__hit) && !(4432bv32 == s__state))) || ((0bv32 == s__hit && !(4432bv32 == s__s3__tmp__next_state___0)) && !(4432bv32 == s__state)) - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: (0bv32 == s__hit && 2bv32 == blastFlag) || (4bv32 == blastFlag && 0bv32 == s__hit) - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 0bv32 == s__hit && !(4432bv32 == s__state) - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: ((((3bv32 == s__s3__tmp__next_state___0 && 2bv32 == blastFlag) && 4352bv32 == s__state) || ((s__s3__tmp__next_state___0 == 4560bv32 && 0bv32 == s__hit) && 4352bv32 == s__state)) || ((0bv32 == s__hit && 2bv32 == blastFlag) && 4352bv32 == s__state)) || ((4bv32 == blastFlag && 0bv32 == s__hit) && 4352bv32 == s__state) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: (((0bv32 == s__hit && 2bv32 == blastFlag) && !(4432bv32 == s__state)) || ((blastFlag == 0bv32 && !(s__state == 4400bv32)) && !(4432bv32 == s__state))) || ((4bv32 == blastFlag && 0bv32 == s__hit) && !(4432bv32 == s__state)) - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: (0bv32 == s__hit && !(4432bv32 == s__state)) || ((!(s__state == 4400bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0bv32 == s__hit && !(4432bv32 == s__state) - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: (((0bv32 == s__hit && 2bv32 == blastFlag) && !(4432bv32 == s__state)) || ((0bv32 == s__hit && 3bv32 == blastFlag) && !(4432bv32 == s__state))) || ((4bv32 == blastFlag && 0bv32 == s__hit) && !(4432bv32 == s__state)) - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: (0bv32 == s__hit && !(4432bv32 == s__state)) || ((!(s__state == 4400bv32) && 2bv32 == blastFlag) && !(4432bv32 == s__state)) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: ((((0bv32 == s__hit && 2bv32 == blastFlag) && !(4432bv32 == s__state)) || ((blastFlag == 1bv32 && !(s__state == 4400bv32)) && !(4432bv32 == s__state))) || (((blastFlag == 1bv32 && 0bv32 == s__hit) && !(4432bv32 == s__s3__tmp__next_state___0)) && !(4432bv32 == s__state))) || ((4bv32 == blastFlag && 0bv32 == s__hit) && !(4432bv32 == s__state)) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((0bv32 == s__hit && 2bv32 == blastFlag) && !(4432bv32 == s__state)) || ((4bv32 == blastFlag && 0bv32 == s__hit) && !(4432bv32 == s__state)) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: 0bv32 == s__hit && !(4432bv32 == s__state) RESULT: Ultimate proved your program to be correct! [2022-01-10 04:10:23,757 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...