/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_Default.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-09 23:26:28,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-09 23:26:28,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-09 23:26:28,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-09 23:26:28,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-09 23:26:28,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-09 23:26:28,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-09 23:26:28,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-09 23:26:29,004 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-09 23:26:29,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-09 23:26:29,005 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-09 23:26:29,005 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-09 23:26:29,006 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-09 23:26:29,006 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-09 23:26:29,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-09 23:26:29,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-09 23:26:29,008 INFO L138 SettingsManager]: * Use SBE=true [2022-01-09 23:26:29,008 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-09 23:26:29,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-09 23:26:29,009 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-09 23:26:29,009 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-09 23:26:29,009 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-09 23:26:29,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-09 23:26:29,010 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-09 23:26:29,010 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-09 23:26:29,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-09 23:26:29,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-09 23:26:29,010 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-09 23:26:29,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-09 23:26:29,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 23:26:29,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-09 23:26:29,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-09 23:26:29,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-09 23:26:29,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-09 23:26:29,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-09 23:26:29,012 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-09 23:26:29,012 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-09 23:26:29,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-09 23:26:29,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-09 23:26:29,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-09 23:26:29,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-09 23:26:29,233 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-09 23:26:29,234 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-09 23:26:29,234 INFO L275 PluginConnector]: CDTParser initialized [2022-01-09 23:26:29,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-1.c [2022-01-09 23:26:29,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b2f09f2/c785f4a9653e445ea0ad5423fa888953/FLAG196ef2383 [2022-01-09 23:26:29,722 INFO L306 CDTParser]: Found 1 translation units. [2022-01-09 23:26:29,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_clnt_3.cil-1.c [2022-01-09 23:26:29,733 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b2f09f2/c785f4a9653e445ea0ad5423fa888953/FLAG196ef2383 [2022-01-09 23:26:30,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76b2f09f2/c785f4a9653e445ea0ad5423fa888953 [2022-01-09 23:26:30,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-09 23:26:30,097 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-09 23:26:30,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-09 23:26:30,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-09 23:26:30,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-09 23:26:30,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d35d802 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30, skipping insertion in model container [2022-01-09 23:26:30,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-09 23:26:30,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-09 23:26:30,316 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_3.cil-1.c[37413,37426] [2022-01-09 23:26:30,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 23:26:30,326 INFO L203 MainTranslator]: Completed pre-run [2022-01-09 23:26:30,366 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_3.cil-1.c[37413,37426] [2022-01-09 23:26:30,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 23:26:30,395 INFO L208 MainTranslator]: Completed translation [2022-01-09 23:26:30,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30 WrapperNode [2022-01-09 23:26:30,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-09 23:26:30,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-09 23:26:30,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-09 23:26:30,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-09 23:26:30,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,435 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 475 [2022-01-09 23:26:30,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-09 23:26:30,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-09 23:26:30,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-09 23:26:30,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-09 23:26:30,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-09 23:26:30,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-09 23:26:30,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-09 23:26:30,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-09 23:26:30,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30" (1/1) ... [2022-01-09 23:26:30,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 23:26:30,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:26:30,537 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) [2022-01-09 23:26:30,562 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 [2022-01-09 23:26:30,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-09 23:26:30,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-09 23:26:30,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-09 23:26:30,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-09 23:26:30,644 INFO L234 CfgBuilder]: Building ICFG [2022-01-09 23:26:30,645 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-09 23:26:30,658 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-01-09 23:26:30,975 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2022-01-09 23:26:30,975 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2022-01-09 23:26:30,975 INFO L275 CfgBuilder]: Performing block encoding [2022-01-09 23:26:30,982 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-09 23:26:30,982 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-09 23:26:30,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 11:26:30 BoogieIcfgContainer [2022-01-09 23:26:30,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-09 23:26:30,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-09 23:26:30,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-09 23:26:31,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-09 23:26:31,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 11:26:30" (1/3) ... [2022-01-09 23:26:31,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff81540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 11:26:31, skipping insertion in model container [2022-01-09 23:26:31,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:26:30" (2/3) ... [2022-01-09 23:26:31,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff81540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 11:26:31, skipping insertion in model container [2022-01-09 23:26:31,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 11:26:30" (3/3) ... [2022-01-09 23:26:31,004 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.cil-1.c [2022-01-09 23:26:31,008 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-09 23:26:31,008 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-09 23:26:31,067 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-09 23:26:31,072 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 [2022-01-09 23:26:31,072 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-09 23:26:31,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 122 states have (on average 1.7377049180327868) internal successors, (212), 123 states have internal predecessors, (212), 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) [2022-01-09 23:26:31,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-09 23:26:31,091 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:31,095 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] [2022-01-09 23:26:31,096 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:31,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:31,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2022-01-09 23:26:31,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:31,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320943367] [2022-01-09 23:26:31,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:31,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:31,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:26:31,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:31,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320943367] [2022-01-09 23:26:31,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320943367] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:31,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:31,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:31,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073106714] [2022-01-09 23:26:31,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:31,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:31,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:31,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:31,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:31,312 INFO L87 Difference]: Start difference. First operand has 124 states, 122 states have (on average 1.7377049180327868) internal successors, (212), 123 states have internal predecessors, (212), 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) [2022-01-09 23:26:31,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:31,489 INFO L93 Difference]: Finished difference Result 244 states and 419 transitions. [2022-01-09 23:26:31,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:31,491 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 [2022-01-09 23:26:31,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:31,501 INFO L225 Difference]: With dead ends: 244 [2022-01-09 23:26:31,502 INFO L226 Difference]: Without dead ends: 112 [2022-01-09 23:26:31,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:31,509 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 7 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 317 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 [2022-01-09 23:26:31,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 317 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:31,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-01-09 23:26:31,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-01-09 23:26:31,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.5225225225225225) internal successors, (169), 111 states have internal predecessors, (169), 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) [2022-01-09 23:26:31,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2022-01-09 23:26:31,540 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2022-01-09 23:26:31,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:31,541 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2022-01-09 23:26:31,541 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) [2022-01-09 23:26:31,541 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2022-01-09 23:26:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-09 23:26:31,542 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:31,542 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] [2022-01-09 23:26:31,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-09 23:26:31,543 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:31,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:31,544 INFO L85 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2022-01-09 23:26:31,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:31,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144724637] [2022-01-09 23:26:31,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:31,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:31,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:26:31,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:31,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144724637] [2022-01-09 23:26:31,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144724637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:31,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:31,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:31,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665760881] [2022-01-09 23:26:31,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:31,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:31,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:31,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:31,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:31,605 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2022-01-09 23:26:31,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:31,696 INFO L93 Difference]: Finished difference Result 232 states and 354 transitions. [2022-01-09 23:26:31,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:31,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2022-01-09 23:26:31,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:31,698 INFO L225 Difference]: With dead ends: 232 [2022-01-09 23:26:31,698 INFO L226 Difference]: Without dead ends: 130 [2022-01-09 23:26:31,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:31,700 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 13 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 238 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 [2022-01-09 23:26:31,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 238 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:31,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-01-09 23:26:31,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2022-01-09 23:26:31,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5) internal successors, (189), 126 states have internal predecessors, (189), 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) [2022-01-09 23:26:31,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2022-01-09 23:26:31,710 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2022-01-09 23:26:31,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:31,710 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2022-01-09 23:26:31,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2022-01-09 23:26:31,710 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2022-01-09 23:26:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-09 23:26:31,711 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:31,712 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] [2022-01-09 23:26:31,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-09 23:26:31,712 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:31,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:31,713 INFO L85 PathProgramCache]: Analyzing trace with hash -114868729, now seen corresponding path program 1 times [2022-01-09 23:26:31,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:31,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262391903] [2022-01-09 23:26:31,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:31,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:31,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-01-09 23:26:31,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:31,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262391903] [2022-01-09 23:26:31,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262391903] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:31,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:31,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:31,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429962048] [2022-01-09 23:26:31,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:31,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:31,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:31,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:31,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:31,776 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-01-09 23:26:31,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:31,886 INFO L93 Difference]: Finished difference Result 266 states and 402 transitions. [2022-01-09 23:26:31,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:31,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 50 [2022-01-09 23:26:31,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:31,888 INFO L225 Difference]: With dead ends: 266 [2022-01-09 23:26:31,888 INFO L226 Difference]: Without dead ends: 149 [2022-01-09 23:26:31,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:31,890 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 17 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 251 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 [2022-01-09 23:26:31,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 251 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:31,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-01-09 23:26:31,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 144. [2022-01-09 23:26:31,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4755244755244756) internal successors, (211), 143 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) [2022-01-09 23:26:31,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2022-01-09 23:26:31,912 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2022-01-09 23:26:31,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:31,912 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2022-01-09 23:26:31,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2022-01-09 23:26:31,912 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2022-01-09 23:26:31,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-09 23:26:31,914 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:31,914 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] [2022-01-09 23:26:31,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-09 23:26:31,915 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:31,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:31,921 INFO L85 PathProgramCache]: Analyzing trace with hash -682645784, now seen corresponding path program 1 times [2022-01-09 23:26:31,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:31,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708250400] [2022-01-09 23:26:31,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:31,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-09 23:26:32,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:32,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708250400] [2022-01-09 23:26:32,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708250400] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:32,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:32,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:32,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674431834] [2022-01-09 23:26:32,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:32,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:32,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:32,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:32,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,042 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-01-09 23:26:32,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:32,188 INFO L93 Difference]: Finished difference Result 328 states and 496 transitions. [2022-01-09 23:26:32,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:32,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 67 [2022-01-09 23:26:32,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:32,190 INFO L225 Difference]: With dead ends: 328 [2022-01-09 23:26:32,190 INFO L226 Difference]: Without dead ends: 193 [2022-01-09 23:26:32,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,198 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 52 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:32,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 224 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:32,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-01-09 23:26:32,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 185. [2022-01-09 23:26:32,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.4184782608695652) internal successors, (261), 184 states have internal predecessors, (261), 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) [2022-01-09 23:26:32,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 261 transitions. [2022-01-09 23:26:32,205 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 261 transitions. Word has length 67 [2022-01-09 23:26:32,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:32,206 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 261 transitions. [2022-01-09 23:26:32,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-01-09 23:26:32,206 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 261 transitions. [2022-01-09 23:26:32,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-01-09 23:26:32,208 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:32,208 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] [2022-01-09 23:26:32,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-09 23:26:32,208 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:32,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:32,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1806883178, now seen corresponding path program 1 times [2022-01-09 23:26:32,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:32,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521430539] [2022-01-09 23:26:32,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:32,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:32,249 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-01-09 23:26:32,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:32,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521430539] [2022-01-09 23:26:32,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521430539] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:32,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:32,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:32,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2203835] [2022-01-09 23:26:32,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:32,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:32,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:32,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:32,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,252 INFO L87 Difference]: Start difference. First operand 185 states and 261 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-01-09 23:26:32,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:32,334 INFO L93 Difference]: Finished difference Result 383 states and 548 transitions. [2022-01-09 23:26:32,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:32,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 67 [2022-01-09 23:26:32,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:32,336 INFO L225 Difference]: With dead ends: 383 [2022-01-09 23:26:32,336 INFO L226 Difference]: Without dead ends: 208 [2022-01-09 23:26:32,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,340 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 15 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 256 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 [2022-01-09 23:26:32,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 256 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:32,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-01-09 23:26:32,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2022-01-09 23:26:32,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 203 states have (on average 1.4039408866995073) internal successors, (285), 203 states have internal predecessors, (285), 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) [2022-01-09 23:26:32,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 285 transitions. [2022-01-09 23:26:32,362 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 285 transitions. Word has length 67 [2022-01-09 23:26:32,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:32,362 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 285 transitions. [2022-01-09 23:26:32,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2022-01-09 23:26:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 285 transitions. [2022-01-09 23:26:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-09 23:26:32,364 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:32,364 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] [2022-01-09 23:26:32,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-09 23:26:32,364 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:32,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:32,365 INFO L85 PathProgramCache]: Analyzing trace with hash 170492736, now seen corresponding path program 1 times [2022-01-09 23:26:32,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:32,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464050481] [2022-01-09 23:26:32,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:32,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:32,454 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-01-09 23:26:32,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:32,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464050481] [2022-01-09 23:26:32,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464050481] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:32,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:32,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:32,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861624566] [2022-01-09 23:26:32,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:32,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:32,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:32,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:32,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,456 INFO L87 Difference]: Start difference. First operand 204 states and 285 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-01-09 23:26:32,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:32,548 INFO L93 Difference]: Finished difference Result 422 states and 598 transitions. [2022-01-09 23:26:32,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:32,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 83 [2022-01-09 23:26:32,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:32,551 INFO L225 Difference]: With dead ends: 422 [2022-01-09 23:26:32,552 INFO L226 Difference]: Without dead ends: 228 [2022-01-09 23:26:32,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,554 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 13 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 255 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 [2022-01-09 23:26:32,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 255 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:32,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-01-09 23:26:32,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2022-01-09 23:26:32,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.3883928571428572) internal successors, (311), 224 states have internal predecessors, (311), 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) [2022-01-09 23:26:32,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 311 transitions. [2022-01-09 23:26:32,561 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 311 transitions. Word has length 83 [2022-01-09 23:26:32,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:32,563 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 311 transitions. [2022-01-09 23:26:32,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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) [2022-01-09 23:26:32,563 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 311 transitions. [2022-01-09 23:26:32,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-09 23:26:32,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:32,570 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] [2022-01-09 23:26:32,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-09 23:26:32,570 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:32,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:32,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1976749000, now seen corresponding path program 1 times [2022-01-09 23:26:32,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:32,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141829132] [2022-01-09 23:26:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:32,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:32,636 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-01-09 23:26:32,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:32,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141829132] [2022-01-09 23:26:32,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141829132] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:32,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:32,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:32,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288686706] [2022-01-09 23:26:32,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:32,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:32,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:32,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:32,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,638 INFO L87 Difference]: Start difference. First operand 225 states and 311 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2022-01-09 23:26:32,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:32,664 INFO L93 Difference]: Finished difference Result 652 states and 903 transitions. [2022-01-09 23:26:32,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:32,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 103 [2022-01-09 23:26:32,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:32,667 INFO L225 Difference]: With dead ends: 652 [2022-01-09 23:26:32,668 INFO L226 Difference]: Without dead ends: 437 [2022-01-09 23:26:32,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,669 INFO L933 BasicCegarLoop]: 203 mSDtfsCounter, 123 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 356 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 [2022-01-09 23:26:32,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 356 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 23:26:32,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-01-09 23:26:32,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2022-01-09 23:26:32,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 436 states have (on average 1.3761467889908257) internal successors, (600), 436 states have internal predecessors, (600), 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) [2022-01-09 23:26:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 600 transitions. [2022-01-09 23:26:32,681 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 600 transitions. Word has length 103 [2022-01-09 23:26:32,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:32,682 INFO L470 AbstractCegarLoop]: Abstraction has 437 states and 600 transitions. [2022-01-09 23:26:32,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2022-01-09 23:26:32,683 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 600 transitions. [2022-01-09 23:26:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-09 23:26:32,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:32,684 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] [2022-01-09 23:26:32,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-09 23:26:32,684 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:32,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:32,687 INFO L85 PathProgramCache]: Analyzing trace with hash -102965200, now seen corresponding path program 1 times [2022-01-09 23:26:32,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:32,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933671181] [2022-01-09 23:26:32,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:32,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:32,746 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-01-09 23:26:32,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:32,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933671181] [2022-01-09 23:26:32,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933671181] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:32,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:32,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:32,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211897756] [2022-01-09 23:26:32,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:32,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:32,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:32,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:32,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,748 INFO L87 Difference]: Start difference. First operand 437 states and 600 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) [2022-01-09 23:26:32,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:32,765 INFO L93 Difference]: Finished difference Result 885 states and 1214 transitions. [2022-01-09 23:26:32,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:32,765 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 [2022-01-09 23:26:32,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:32,767 INFO L225 Difference]: With dead ends: 885 [2022-01-09 23:26:32,767 INFO L226 Difference]: Without dead ends: 458 [2022-01-09 23:26:32,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,768 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 337 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 [2022-01-09 23:26:32,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 337 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 23:26:32,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-01-09 23:26:32,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2022-01-09 23:26:32,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 457 states have (on average 1.3719912472647702) internal successors, (627), 457 states have internal predecessors, (627), 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) [2022-01-09 23:26:32,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 627 transitions. [2022-01-09 23:26:32,778 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 627 transitions. Word has length 104 [2022-01-09 23:26:32,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:32,778 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 627 transitions. [2022-01-09 23:26:32,778 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) [2022-01-09 23:26:32,778 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 627 transitions. [2022-01-09 23:26:32,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-09 23:26:32,781 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:32,782 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] [2022-01-09 23:26:32,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-09 23:26:32,785 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:32,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:32,791 INFO L85 PathProgramCache]: Analyzing trace with hash 736068462, now seen corresponding path program 1 times [2022-01-09 23:26:32,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:32,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977649490] [2022-01-09 23:26:32,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:32,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:32,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:32,835 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2022-01-09 23:26:32,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:32,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977649490] [2022-01-09 23:26:32,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977649490] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:32,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:32,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:32,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352359296] [2022-01-09 23:26:32,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:32,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:32,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:32,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:32,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,838 INFO L87 Difference]: Start difference. First operand 458 states and 627 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) [2022-01-09 23:26:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:32,864 INFO L93 Difference]: Finished difference Result 932 states and 1274 transitions. [2022-01-09 23:26:32,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:32,865 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 [2022-01-09 23:26:32,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:32,867 INFO L225 Difference]: With dead ends: 932 [2022-01-09 23:26:32,867 INFO L226 Difference]: Without dead ends: 484 [2022-01-09 23:26:32,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,870 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 20 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 309 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 [2022-01-09 23:26:32,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 309 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 23:26:32,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2022-01-09 23:26:32,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2022-01-09 23:26:32,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 483 states have (on average 1.3664596273291925) internal successors, (660), 483 states have internal predecessors, (660), 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) [2022-01-09 23:26:32,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 660 transitions. [2022-01-09 23:26:32,882 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 660 transitions. Word has length 104 [2022-01-09 23:26:32,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:32,882 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 660 transitions. [2022-01-09 23:26:32,882 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) [2022-01-09 23:26:32,882 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 660 transitions. [2022-01-09 23:26:32,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-09 23:26:32,883 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:32,884 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] [2022-01-09 23:26:32,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-09 23:26:32,884 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:32,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:32,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1108389378, now seen corresponding path program 1 times [2022-01-09 23:26:32,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:32,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824611097] [2022-01-09 23:26:32,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:32,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-01-09 23:26:32,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:32,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824611097] [2022-01-09 23:26:32,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824611097] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:32,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:32,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:32,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161287163] [2022-01-09 23:26:32,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:32,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:32,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:32,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:32,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,929 INFO L87 Difference]: Start difference. First operand 484 states and 660 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2022-01-09 23:26:32,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:32,956 INFO L93 Difference]: Finished difference Result 699 states and 957 transitions. [2022-01-09 23:26:32,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:32,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 105 [2022-01-09 23:26:32,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:32,959 INFO L225 Difference]: With dead ends: 699 [2022-01-09 23:26:32,959 INFO L226 Difference]: Without dead ends: 697 [2022-01-09 23:26:32,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:32,960 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 136 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:32,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 299 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 23:26:32,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2022-01-09 23:26:32,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2022-01-09 23:26:32,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 696 states have (on average 1.3721264367816093) internal successors, (955), 696 states have internal predecessors, (955), 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) [2022-01-09 23:26:32,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 955 transitions. [2022-01-09 23:26:32,978 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 955 transitions. Word has length 105 [2022-01-09 23:26:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:32,979 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 955 transitions. [2022-01-09 23:26:32,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2022-01-09 23:26:32,979 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 955 transitions. [2022-01-09 23:26:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-01-09 23:26:32,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:32,981 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 5, 5, 3, 3, 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] [2022-01-09 23:26:32,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-09 23:26:32,981 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:32,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:32,982 INFO L85 PathProgramCache]: Analyzing trace with hash -391134295, now seen corresponding path program 1 times [2022-01-09 23:26:32,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:32,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150332943] [2022-01-09 23:26:32,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:32,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:33,051 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 259 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-01-09 23:26:33,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:33,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150332943] [2022-01-09 23:26:33,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150332943] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:33,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:33,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:33,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493582772] [2022-01-09 23:26:33,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:33,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:33,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:33,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:33,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:33,053 INFO L87 Difference]: Start difference. First operand 697 states and 955 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) [2022-01-09 23:26:33,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:33,171 INFO L93 Difference]: Finished difference Result 1508 states and 2127 transitions. [2022-01-09 23:26:33,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:33,171 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 159 [2022-01-09 23:26:33,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:33,175 INFO L225 Difference]: With dead ends: 1508 [2022-01-09 23:26:33,175 INFO L226 Difference]: Without dead ends: 844 [2022-01-09 23:26:33,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:33,176 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 94 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:33,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 190 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:33,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2022-01-09 23:26:33,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 814. [2022-01-09 23:26:33,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 814 states, 813 states have (on average 1.4071340713407134) internal successors, (1144), 813 states have internal predecessors, (1144), 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) [2022-01-09 23:26:33,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1144 transitions. [2022-01-09 23:26:33,193 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1144 transitions. Word has length 159 [2022-01-09 23:26:33,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:33,194 INFO L470 AbstractCegarLoop]: Abstraction has 814 states and 1144 transitions. [2022-01-09 23:26:33,197 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) [2022-01-09 23:26:33,197 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1144 transitions. [2022-01-09 23:26:33,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-01-09 23:26:33,200 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:33,200 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 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, 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] [2022-01-09 23:26:33,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-09 23:26:33,201 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:33,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:33,201 INFO L85 PathProgramCache]: Analyzing trace with hash -408594384, now seen corresponding path program 1 times [2022-01-09 23:26:33,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:33,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248142454] [2022-01-09 23:26:33,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:33,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:33,264 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-01-09 23:26:33,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:33,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248142454] [2022-01-09 23:26:33,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248142454] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:33,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:33,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:33,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617768707] [2022-01-09 23:26:33,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:33,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:33,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:33,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:33,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:33,265 INFO L87 Difference]: Start difference. First operand 814 states and 1144 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2022-01-09 23:26:33,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:33,398 INFO L93 Difference]: Finished difference Result 1870 states and 2708 transitions. [2022-01-09 23:26:33,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:33,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 185 [2022-01-09 23:26:33,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:33,402 INFO L225 Difference]: With dead ends: 1870 [2022-01-09 23:26:33,402 INFO L226 Difference]: Without dead ends: 1041 [2022-01-09 23:26:33,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:33,404 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 93 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:33,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 198 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:33,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2022-01-09 23:26:33,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1003. [2022-01-09 23:26:33,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1002 states have (on average 1.3932135728542914) internal successors, (1396), 1002 states have internal predecessors, (1396), 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) [2022-01-09 23:26:33,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1396 transitions. [2022-01-09 23:26:33,426 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1396 transitions. Word has length 185 [2022-01-09 23:26:33,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:33,426 INFO L470 AbstractCegarLoop]: Abstraction has 1003 states and 1396 transitions. [2022-01-09 23:26:33,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2022-01-09 23:26:33,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1396 transitions. [2022-01-09 23:26:33,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-01-09 23:26:33,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:33,429 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-09 23:26:33,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-09 23:26:33,430 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:33,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:33,430 INFO L85 PathProgramCache]: Analyzing trace with hash -585141096, now seen corresponding path program 1 times [2022-01-09 23:26:33,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:33,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576152046] [2022-01-09 23:26:33,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:33,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:33,469 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 402 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2022-01-09 23:26:33,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:33,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576152046] [2022-01-09 23:26:33,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576152046] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:33,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:33,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:33,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647562117] [2022-01-09 23:26:33,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:33,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:33,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:33,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:33,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:33,471 INFO L87 Difference]: Start difference. First operand 1003 states and 1396 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2022-01-09 23:26:33,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:33,594 INFO L93 Difference]: Finished difference Result 2126 states and 2985 transitions. [2022-01-09 23:26:33,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:33,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 [2022-01-09 23:26:33,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:33,599 INFO L225 Difference]: With dead ends: 2126 [2022-01-09 23:26:33,599 INFO L226 Difference]: Without dead ends: 1114 [2022-01-09 23:26:33,600 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:33,601 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 96 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:33,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 194 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:33,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2022-01-09 23:26:33,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1078. [2022-01-09 23:26:33,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 1077 states have (on average 1.3853296193129063) internal successors, (1492), 1077 states have internal predecessors, (1492), 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) [2022-01-09 23:26:33,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1492 transitions. [2022-01-09 23:26:33,625 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1492 transitions. Word has length 206 [2022-01-09 23:26:33,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:33,625 INFO L470 AbstractCegarLoop]: Abstraction has 1078 states and 1492 transitions. [2022-01-09 23:26:33,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2022-01-09 23:26:33,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1492 transitions. [2022-01-09 23:26:33,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-01-09 23:26:33,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:33,628 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 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, 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] [2022-01-09 23:26:33,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-09 23:26:33,629 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:33,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:33,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2110600453, now seen corresponding path program 1 times [2022-01-09 23:26:33,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:33,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167599123] [2022-01-09 23:26:33,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:33,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:33,681 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-01-09 23:26:33,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:33,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167599123] [2022-01-09 23:26:33,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167599123] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:33,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:33,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:33,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109215073] [2022-01-09 23:26:33,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:33,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:33,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:33,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:33,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:33,683 INFO L87 Difference]: Start difference. First operand 1078 states and 1492 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) [2022-01-09 23:26:33,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:33,811 INFO L93 Difference]: Finished difference Result 2276 states and 3174 transitions. [2022-01-09 23:26:33,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:33,812 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 230 [2022-01-09 23:26:33,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:33,815 INFO L225 Difference]: With dead ends: 2276 [2022-01-09 23:26:33,816 INFO L226 Difference]: Without dead ends: 1195 [2022-01-09 23:26:33,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:33,817 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 97 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:33,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 192 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:33,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2022-01-09 23:26:33,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1162. [2022-01-09 23:26:33,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1161 states have (on average 1.3807062876830318) internal successors, (1603), 1161 states have internal predecessors, (1603), 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) [2022-01-09 23:26:33,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1603 transitions. [2022-01-09 23:26:33,842 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1603 transitions. Word has length 230 [2022-01-09 23:26:33,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:33,842 INFO L470 AbstractCegarLoop]: Abstraction has 1162 states and 1603 transitions. [2022-01-09 23:26:33,842 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) [2022-01-09 23:26:33,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1603 transitions. [2022-01-09 23:26:33,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-01-09 23:26:33,845 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:33,846 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 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, 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] [2022-01-09 23:26:33,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-09 23:26:33,846 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:33,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:33,846 INFO L85 PathProgramCache]: Analyzing trace with hash 77206407, now seen corresponding path program 1 times [2022-01-09 23:26:33,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:33,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687325245] [2022-01-09 23:26:33,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:33,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:33,892 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2022-01-09 23:26:33,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:33,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687325245] [2022-01-09 23:26:33,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687325245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:33,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:33,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:33,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787460967] [2022-01-09 23:26:33,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:33,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:33,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:33,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:33,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:33,908 INFO L87 Difference]: Start difference. First operand 1162 states and 1603 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) [2022-01-09 23:26:34,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:34,030 INFO L93 Difference]: Finished difference Result 2444 states and 3399 transitions. [2022-01-09 23:26:34,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:34,031 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 230 [2022-01-09 23:26:34,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:34,035 INFO L225 Difference]: With dead ends: 2444 [2022-01-09 23:26:34,035 INFO L226 Difference]: Without dead ends: 1291 [2022-01-09 23:26:34,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:34,039 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 99 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:34,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 190 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:34,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2022-01-09 23:26:34,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1255. [2022-01-09 23:26:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.3835725677830941) internal successors, (1735), 1254 states have internal predecessors, (1735), 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) [2022-01-09 23:26:34,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1735 transitions. [2022-01-09 23:26:34,068 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1735 transitions. Word has length 230 [2022-01-09 23:26:34,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:34,069 INFO L470 AbstractCegarLoop]: Abstraction has 1255 states and 1735 transitions. [2022-01-09 23:26:34,069 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) [2022-01-09 23:26:34,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1735 transitions. [2022-01-09 23:26:34,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-01-09 23:26:34,072 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:34,072 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 12, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-09 23:26:34,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-09 23:26:34,073 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:34,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:34,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1837554521, now seen corresponding path program 1 times [2022-01-09 23:26:34,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:34,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683596559] [2022-01-09 23:26:34,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:34,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 552 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2022-01-09 23:26:34,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:34,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683596559] [2022-01-09 23:26:34,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683596559] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:34,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:34,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:34,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476086400] [2022-01-09 23:26:34,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:34,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:34,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:34,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:34,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:34,126 INFO L87 Difference]: Start difference. First operand 1255 states and 1735 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2022-01-09 23:26:34,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:34,255 INFO L93 Difference]: Finished difference Result 2627 states and 3657 transitions. [2022-01-09 23:26:34,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:34,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 260 [2022-01-09 23:26:34,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:34,260 INFO L225 Difference]: With dead ends: 2627 [2022-01-09 23:26:34,260 INFO L226 Difference]: Without dead ends: 1393 [2022-01-09 23:26:34,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:34,262 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 114 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:34,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 173 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:34,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2022-01-09 23:26:34,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1360. [2022-01-09 23:26:34,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1359 states have (on average 1.3914643119941132) internal successors, (1891), 1359 states have internal predecessors, (1891), 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) [2022-01-09 23:26:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 1891 transitions. [2022-01-09 23:26:34,296 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 1891 transitions. Word has length 260 [2022-01-09 23:26:34,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:34,296 INFO L470 AbstractCegarLoop]: Abstraction has 1360 states and 1891 transitions. [2022-01-09 23:26:34,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2022-01-09 23:26:34,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 1891 transitions. [2022-01-09 23:26:34,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-01-09 23:26:34,300 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:34,301 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 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, 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] [2022-01-09 23:26:34,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-09 23:26:34,301 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:34,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:34,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1040904442, now seen corresponding path program 1 times [2022-01-09 23:26:34,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:34,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629416509] [2022-01-09 23:26:34,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:34,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-01-09 23:26:34,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:34,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629416509] [2022-01-09 23:26:34,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629416509] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:34,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:34,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:34,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094092493] [2022-01-09 23:26:34,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:34,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:34,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:34,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:34,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:34,349 INFO L87 Difference]: Start difference. First operand 1360 states and 1891 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2022-01-09 23:26:34,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:34,490 INFO L93 Difference]: Finished difference Result 2723 states and 3783 transitions. [2022-01-09 23:26:34,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:34,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 295 [2022-01-09 23:26:34,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:34,495 INFO L225 Difference]: With dead ends: 2723 [2022-01-09 23:26:34,495 INFO L226 Difference]: Without dead ends: 1390 [2022-01-09 23:26:34,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:34,497 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 119 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:34,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 166 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:34,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1390 states. [2022-01-09 23:26:34,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1390 to 1357. [2022-01-09 23:26:34,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1356 states have (on average 1.381268436578171) internal successors, (1873), 1356 states have internal predecessors, (1873), 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) [2022-01-09 23:26:34,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1873 transitions. [2022-01-09 23:26:34,555 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1873 transitions. Word has length 295 [2022-01-09 23:26:34,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:34,556 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 1873 transitions. [2022-01-09 23:26:34,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2022-01-09 23:26:34,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1873 transitions. [2022-01-09 23:26:34,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2022-01-09 23:26:34,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:34,561 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2022-01-09 23:26:34,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-09 23:26:34,561 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:34,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:34,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1037565840, now seen corresponding path program 1 times [2022-01-09 23:26:34,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:34,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569122593] [2022-01-09 23:26:34,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:34,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:34,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1174 backedges. 561 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-01-09 23:26:34,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:34,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569122593] [2022-01-09 23:26:34,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569122593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:34,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:34,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:34,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989216014] [2022-01-09 23:26:34,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:34,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:34,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:34,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:34,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:34,626 INFO L87 Difference]: Start difference. First operand 1357 states and 1873 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2022-01-09 23:26:34,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:34,742 INFO L93 Difference]: Finished difference Result 2705 states and 3732 transitions. [2022-01-09 23:26:34,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:34,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 305 [2022-01-09 23:26:34,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:34,748 INFO L225 Difference]: With dead ends: 2705 [2022-01-09 23:26:34,748 INFO L226 Difference]: Without dead ends: 1384 [2022-01-09 23:26:34,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:34,750 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 51 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:34,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 245 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:34,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2022-01-09 23:26:34,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1357. [2022-01-09 23:26:34,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1356 states have (on average 1.3613569321533923) internal successors, (1846), 1356 states have internal predecessors, (1846), 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) [2022-01-09 23:26:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1846 transitions. [2022-01-09 23:26:34,788 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1846 transitions. Word has length 305 [2022-01-09 23:26:34,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:34,788 INFO L470 AbstractCegarLoop]: Abstraction has 1357 states and 1846 transitions. [2022-01-09 23:26:34,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2022-01-09 23:26:34,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1846 transitions. [2022-01-09 23:26:34,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-01-09 23:26:34,793 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:34,794 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-09 23:26:34,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-09 23:26:34,794 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:34,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:34,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1729384344, now seen corresponding path program 1 times [2022-01-09 23:26:34,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:34,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087498722] [2022-01-09 23:26:34,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:34,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 729 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-09 23:26:34,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:34,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087498722] [2022-01-09 23:26:34,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087498722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:34,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:34,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:34,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958855091] [2022-01-09 23:26:34,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:34,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:34,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:34,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:34,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:34,860 INFO L87 Difference]: Start difference. First operand 1357 states and 1846 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2022-01-09 23:26:34,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:34,982 INFO L93 Difference]: Finished difference Result 2828 states and 3822 transitions. [2022-01-09 23:26:34,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:34,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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 332 [2022-01-09 23:26:34,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:34,987 INFO L225 Difference]: With dead ends: 2828 [2022-01-09 23:26:34,987 INFO L226 Difference]: Without dead ends: 1507 [2022-01-09 23:26:34,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:34,989 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 127 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:34,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 143 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:34,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2022-01-09 23:26:35,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1402. [2022-01-09 23:26:35,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1401 states have (on average 1.3604568165596003) internal successors, (1906), 1401 states have internal predecessors, (1906), 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) [2022-01-09 23:26:35,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1906 transitions. [2022-01-09 23:26:35,024 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1906 transitions. Word has length 332 [2022-01-09 23:26:35,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:35,025 INFO L470 AbstractCegarLoop]: Abstraction has 1402 states and 1906 transitions. [2022-01-09 23:26:35,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 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) [2022-01-09 23:26:35,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1906 transitions. [2022-01-09 23:26:35,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-01-09 23:26:35,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:35,029 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 14, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-09 23:26:35,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-09 23:26:35,030 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:35,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:35,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1837144220, now seen corresponding path program 1 times [2022-01-09 23:26:35,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:35,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325842025] [2022-01-09 23:26:35,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:35,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:35,111 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2022-01-09 23:26:35,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:35,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325842025] [2022-01-09 23:26:35,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325842025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:35,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:35,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:35,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217725054] [2022-01-09 23:26:35,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:35,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:35,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:35,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:35,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:35,113 INFO L87 Difference]: Start difference. First operand 1402 states and 1906 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2022-01-09 23:26:35,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:35,174 INFO L93 Difference]: Finished difference Result 3939 states and 5384 transitions. [2022-01-09 23:26:35,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:35,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 333 [2022-01-09 23:26:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:35,182 INFO L225 Difference]: With dead ends: 3939 [2022-01-09 23:26:35,182 INFO L226 Difference]: Without dead ends: 2573 [2022-01-09 23:26:35,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:35,185 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 82 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 437 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 [2022-01-09 23:26:35,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 437 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 23:26:35,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2022-01-09 23:26:35,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 2571. [2022-01-09 23:26:35,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2571 states, 2570 states have (on average 1.367704280155642) internal successors, (3515), 2570 states have internal predecessors, (3515), 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) [2022-01-09 23:26:35,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2571 states to 2571 states and 3515 transitions. [2022-01-09 23:26:35,247 INFO L78 Accepts]: Start accepts. Automaton has 2571 states and 3515 transitions. Word has length 333 [2022-01-09 23:26:35,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:35,248 INFO L470 AbstractCegarLoop]: Abstraction has 2571 states and 3515 transitions. [2022-01-09 23:26:35,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2022-01-09 23:26:35,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2571 states and 3515 transitions. [2022-01-09 23:26:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-01-09 23:26:35,252 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:35,252 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1] [2022-01-09 23:26:35,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-09 23:26:35,252 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:35,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:35,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1564055932, now seen corresponding path program 1 times [2022-01-09 23:26:35,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:35,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589742197] [2022-01-09 23:26:35,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:35,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:35,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-01-09 23:26:35,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:35,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589742197] [2022-01-09 23:26:35,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589742197] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 23:26:35,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970587998] [2022-01-09 23:26:35,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:35,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:35,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:26:35,327 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:26:35,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-09 23:26:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:35,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-09 23:26:35,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:26:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-01-09 23:26:36,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:26:36,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1415 backedges. 790 proven. 12 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2022-01-09 23:26:36,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970587998] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:26:36,473 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-09 23:26:36,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-01-09 23:26:36,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859519185] [2022-01-09 23:26:36,473 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-09 23:26:36,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-09 23:26:36,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:36,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-09 23:26:36,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-09 23:26:36,476 INFO L87 Difference]: Start difference. First operand 2571 states and 3515 transitions. Second operand has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 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) [2022-01-09 23:26:36,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:36,866 INFO L93 Difference]: Finished difference Result 5099 states and 6965 transitions. [2022-01-09 23:26:36,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-09 23:26:36,867 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 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 343 [2022-01-09 23:26:36,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:36,880 INFO L225 Difference]: With dead ends: 5099 [2022-01-09 23:26:36,880 INFO L226 Difference]: Without dead ends: 3862 [2022-01-09 23:26:36,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-09 23:26:36,883 INFO L933 BasicCegarLoop]: 287 mSDtfsCounter, 355 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:36,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 664 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-09 23:26:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3862 states. [2022-01-09 23:26:36,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3862 to 2835. [2022-01-09 23:26:36,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2834 states have (on average 1.3514467184191954) internal successors, (3830), 2834 states have internal predecessors, (3830), 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) [2022-01-09 23:26:36,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 3830 transitions. [2022-01-09 23:26:36,961 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 3830 transitions. Word has length 343 [2022-01-09 23:26:36,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:36,962 INFO L470 AbstractCegarLoop]: Abstraction has 2835 states and 3830 transitions. [2022-01-09 23:26:36,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.833333333333336) internal successors, (227), 6 states have internal predecessors, (227), 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) [2022-01-09 23:26:36,962 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 3830 transitions. [2022-01-09 23:26:36,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-01-09 23:26:36,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:36,966 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-09 23:26:36,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-09 23:26:37,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-01-09 23:26:37,180 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:37,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:37,180 INFO L85 PathProgramCache]: Analyzing trace with hash 61848643, now seen corresponding path program 1 times [2022-01-09 23:26:37,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:37,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267128205] [2022-01-09 23:26:37,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:37,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:37,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 953 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-09 23:26:37,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:37,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267128205] [2022-01-09 23:26:37,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267128205] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 23:26:37,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569383485] [2022-01-09 23:26:37,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:37,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:37,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:26:37,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:26:37,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-09 23:26:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:37,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-09 23:26:37,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:26:37,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 953 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-09 23:26:37,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:26:38,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 953 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2022-01-09 23:26:38,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569383485] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:26:38,276 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-09 23:26:38,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-01-09 23:26:38,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713094545] [2022-01-09 23:26:38,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-09 23:26:38,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-09 23:26:38,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:38,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-09 23:26:38,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-01-09 23:26:38,278 INFO L87 Difference]: Start difference. First operand 2835 states and 3830 transitions. Second operand has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 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) [2022-01-09 23:26:38,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:38,528 INFO L93 Difference]: Finished difference Result 6504 states and 8791 transitions. [2022-01-09 23:26:38,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-09 23:26:38,529 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 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 369 [2022-01-09 23:26:38,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:38,541 INFO L225 Difference]: With dead ends: 6504 [2022-01-09 23:26:38,541 INFO L226 Difference]: Without dead ends: 3698 [2022-01-09 23:26:38,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 742 GetRequests, 737 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-09 23:26:38,547 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 460 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:38,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [460 Valid, 323 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-09 23:26:38,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2022-01-09 23:26:38,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 2972. [2022-01-09 23:26:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 2971 states have (on average 1.3382699427802087) internal successors, (3976), 2971 states have internal predecessors, (3976), 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) [2022-01-09 23:26:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 3976 transitions. [2022-01-09 23:26:38,619 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 3976 transitions. Word has length 369 [2022-01-09 23:26:38,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:38,620 INFO L470 AbstractCegarLoop]: Abstraction has 2972 states and 3976 transitions. [2022-01-09 23:26:38,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 6 states have internal predecessors, (226), 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) [2022-01-09 23:26:38,620 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 3976 transitions. [2022-01-09 23:26:38,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2022-01-09 23:26:38,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:38,625 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-01-09 23:26:38,651 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-09 23:26:38,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-01-09 23:26:38,840 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:38,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:38,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1613450848, now seen corresponding path program 1 times [2022-01-09 23:26:38,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:38,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668961639] [2022-01-09 23:26:38,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:38,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:38,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1968 backedges. 883 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2022-01-09 23:26:38,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:38,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668961639] [2022-01-09 23:26:38,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668961639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:38,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:26:38,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-09 23:26:38,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859021679] [2022-01-09 23:26:38,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:38,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:38,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:38,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:38,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:38,925 INFO L87 Difference]: Start difference. First operand 2972 states and 3976 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2022-01-09 23:26:39,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:39,044 INFO L93 Difference]: Finished difference Result 5654 states and 7451 transitions. [2022-01-09 23:26:39,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:39,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 408 [2022-01-09 23:26:39,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:39,060 INFO L225 Difference]: With dead ends: 5654 [2022-01-09 23:26:39,061 INFO L226 Difference]: Without dead ends: 1598 [2022-01-09 23:26:39,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-09 23:26:39,066 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 39 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:39,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 252 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:39,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1598 states. [2022-01-09 23:26:39,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1598 to 1532. [2022-01-09 23:26:39,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.3383409536250817) internal successors, (2049), 1531 states have internal predecessors, (2049), 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) [2022-01-09 23:26:39,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 2049 transitions. [2022-01-09 23:26:39,118 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 2049 transitions. Word has length 408 [2022-01-09 23:26:39,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:39,119 INFO L470 AbstractCegarLoop]: Abstraction has 1532 states and 2049 transitions. [2022-01-09 23:26:39,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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) [2022-01-09 23:26:39,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 2049 transitions. [2022-01-09 23:26:39,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2022-01-09 23:26:39,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:39,123 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 17, 15, 15, 13, 13, 11, 11, 9, 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, 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] [2022-01-09 23:26:39,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-09 23:26:39,123 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:39,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:39,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1952423320, now seen corresponding path program 1 times [2022-01-09 23:26:39,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:39,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411143795] [2022-01-09 23:26:39,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:39,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:39,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2709 backedges. 1570 proven. 14 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2022-01-09 23:26:39,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:39,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411143795] [2022-01-09 23:26:39,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411143795] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 23:26:39,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093525709] [2022-01-09 23:26:39,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:39,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:39,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:26:39,206 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:26:39,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-09 23:26:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:39,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-09 23:26:39,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:26:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 2709 backedges. 1017 proven. 0 refuted. 0 times theorem prover too weak. 1692 trivial. 0 not checked. [2022-01-09 23:26:40,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-09 23:26:40,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093525709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:40,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-09 23:26:40,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-01-09 23:26:40,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134496824] [2022-01-09 23:26:40,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:40,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:40,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:40,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:40,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-09 23:26:40,311 INFO L87 Difference]: Start difference. First operand 1532 states and 2049 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2022-01-09 23:26:40,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:40,331 INFO L93 Difference]: Finished difference Result 1557 states and 2079 transitions. [2022-01-09 23:26:40,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:40,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 492 [2022-01-09 23:26:40,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:40,335 INFO L225 Difference]: With dead ends: 1557 [2022-01-09 23:26:40,335 INFO L226 Difference]: Without dead ends: 1308 [2022-01-09 23:26:40,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 492 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-09 23:26:40,337 INFO L933 BasicCegarLoop]: 198 mSDtfsCounter, 60 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:40,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 251 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 23:26:40,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2022-01-09 23:26:40,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1285. [2022-01-09 23:26:40,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1284 states have (on average 1.337227414330218) internal successors, (1717), 1284 states have internal predecessors, (1717), 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) [2022-01-09 23:26:40,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1717 transitions. [2022-01-09 23:26:40,373 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1717 transitions. Word has length 492 [2022-01-09 23:26:40,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:40,374 INFO L470 AbstractCegarLoop]: Abstraction has 1285 states and 1717 transitions. [2022-01-09 23:26:40,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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) [2022-01-09 23:26:40,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1717 transitions. [2022-01-09 23:26:40,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-01-09 23:26:40,377 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:40,378 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 17, 16, 16, 14, 14, 13, 13, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-01-09 23:26:40,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-09 23:26:40,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:40,599 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:40,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:40,600 INFO L85 PathProgramCache]: Analyzing trace with hash 68555604, now seen corresponding path program 1 times [2022-01-09 23:26:40,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:40,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855350227] [2022-01-09 23:26:40,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:40,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:40,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2606 backedges. 1545 proven. 14 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2022-01-09 23:26:40,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:40,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855350227] [2022-01-09 23:26:40,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855350227] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 23:26:40,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323324133] [2022-01-09 23:26:40,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:40,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:40,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:26:40,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:26:40,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-09 23:26:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:40,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 804 conjuncts, 2 conjunts are in the unsatisfiable core [2022-01-09 23:26:40,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:26:41,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2606 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 2338 trivial. 0 not checked. [2022-01-09 23:26:41,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-09 23:26:41,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323324133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:26:41,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-09 23:26:41,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-01-09 23:26:41,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301411252] [2022-01-09 23:26:41,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:26:41,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-09 23:26:41,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:41,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-09 23:26:41,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-09 23:26:41,403 INFO L87 Difference]: Start difference. First operand 1285 states and 1717 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2022-01-09 23:26:41,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:41,520 INFO L93 Difference]: Finished difference Result 2642 states and 3546 transitions. [2022-01-09 23:26:41,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-09 23:26:41,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 494 [2022-01-09 23:26:41,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:41,524 INFO L225 Difference]: With dead ends: 2642 [2022-01-09 23:26:41,524 INFO L226 Difference]: Without dead ends: 1393 [2022-01-09 23:26:41,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-09 23:26:41,526 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 49 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:41,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 200 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:26:41,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2022-01-09 23:26:41,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1390. [2022-01-09 23:26:41,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 1.2966162706983442) internal successors, (1801), 1389 states have internal predecessors, (1801), 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) [2022-01-09 23:26:41,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1801 transitions. [2022-01-09 23:26:41,550 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1801 transitions. Word has length 494 [2022-01-09 23:26:41,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:41,550 INFO L470 AbstractCegarLoop]: Abstraction has 1390 states and 1801 transitions. [2022-01-09 23:26:41,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2022-01-09 23:26:41,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1801 transitions. [2022-01-09 23:26:41,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 605 [2022-01-09 23:26:41,554 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:26:41,555 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 19, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-01-09 23:26:41,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-09 23:26:41,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:41,771 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:26:41,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:26:41,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1158579758, now seen corresponding path program 2 times [2022-01-09 23:26:41,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:26:41,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40460098] [2022-01-09 23:26:41,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:26:41,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:26:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:26:41,848 INFO L134 CoverageAnalysis]: Checked inductivity of 3925 backedges. 2052 proven. 14 refuted. 0 times theorem prover too weak. 1859 trivial. 0 not checked. [2022-01-09 23:26:41,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:26:41,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40460098] [2022-01-09 23:26:41,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40460098] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-09 23:26:41,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335418739] [2022-01-09 23:26:41,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-09 23:26:41,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:26:41,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:26:41,857 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:26:41,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-09 23:26:42,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-09 23:26:42,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:26:42,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 3 conjunts are in the unsatisfiable core [2022-01-09 23:26:42,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:26:42,808 INFO L134 CoverageAnalysis]: Checked inductivity of 3925 backedges. 2052 proven. 14 refuted. 0 times theorem prover too weak. 1859 trivial. 0 not checked. [2022-01-09 23:26:42,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:26:43,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3925 backedges. 2052 proven. 14 refuted. 0 times theorem prover too weak. 1859 trivial. 0 not checked. [2022-01-09 23:26:43,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335418739] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:26:43,574 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-09 23:26:43,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-01-09 23:26:43,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94098603] [2022-01-09 23:26:43,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-09 23:26:43,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-09 23:26:43,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:26:43,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-09 23:26:43,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-09 23:26:43,577 INFO L87 Difference]: Start difference. First operand 1390 states and 1801 transitions. Second operand has 8 states, 8 states have (on average 40.375) internal successors, (323), 8 states have internal predecessors, (323), 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) [2022-01-09 23:26:43,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:26:43,779 INFO L93 Difference]: Finished difference Result 1624 states and 2097 transitions. [2022-01-09 23:26:43,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-09 23:26:43,779 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 40.375) internal successors, (323), 8 states have internal predecessors, (323), 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 604 [2022-01-09 23:26:43,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:26:43,780 INFO L225 Difference]: With dead ends: 1624 [2022-01-09 23:26:43,780 INFO L226 Difference]: Without dead ends: 0 [2022-01-09 23:26:43,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1214 GetRequests, 1206 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-01-09 23:26:43,781 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 109 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-09 23:26:43,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [109 Valid, 439 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-09 23:26:43,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-09 23:26:43,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-09 23:26:43,782 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) [2022-01-09 23:26:43,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-09 23:26:43,782 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 604 [2022-01-09 23:26:43,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:26:43,783 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-09 23:26:43,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.375) internal successors, (323), 8 states have internal predecessors, (323), 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) [2022-01-09 23:26:43,783 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-09 23:26:43,783 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-09 23:26:43,785 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-01-09 23:26:43,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-09 23:26:43,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-01-09 23:26:44,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-09 23:26:45,255 INFO L861 garLoopResultBuilder]: At program point L630(lines 622 632) the Hoare annotation is: true [2022-01-09 23:26:45,256 INFO L858 garLoopResultBuilder]: For program point L531(lines 531 535) no Hoare annotation was computed. [2022-01-09 23:26:45,256 INFO L858 garLoopResultBuilder]: For program point L234(lines 234 239) no Hoare annotation was computed. [2022-01-09 23:26:45,256 INFO L858 garLoopResultBuilder]: For program point L499(lines 499 504) no Hoare annotation was computed. [2022-01-09 23:26:45,256 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 477) no Hoare annotation was computed. [2022-01-09 23:26:45,256 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 466 477) no Hoare annotation was computed. [2022-01-09 23:26:45,256 INFO L858 garLoopResultBuilder]: For program point L202(lines 202 545) no Hoare annotation was computed. [2022-01-09 23:26:45,256 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 556) no Hoare annotation was computed. [2022-01-09 23:26:45,256 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 567) no Hoare annotation was computed. [2022-01-09 23:26:45,256 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 405) no Hoare annotation was computed. [2022-01-09 23:26:45,256 INFO L858 garLoopResultBuilder]: For program point L335(lines 335 339) no Hoare annotation was computed. [2022-01-09 23:26:45,256 INFO L858 garLoopResultBuilder]: For program point L335-2(lines 210 540) no Hoare annotation was computed. [2022-01-09 23:26:45,256 INFO L854 garLoopResultBuilder]: At program point L203(lines 202 545) the Hoare annotation is: (let ((.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352)) (.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse2 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560) .cse1 .cse2 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) (and (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1 (not .cse0) .cse2))) [2022-01-09 23:26:45,256 INFO L854 garLoopResultBuilder]: At program point L170(lines 160 559) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4480) (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) [2022-01-09 23:26:45,257 INFO L858 garLoopResultBuilder]: For program point L468(lines 468 474) no Hoare annotation was computed. [2022-01-09 23:26:45,257 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 274) no Hoare annotation was computed. [2022-01-09 23:26:45,257 INFO L858 garLoopResultBuilder]: For program point L270-2(lines 210 540) no Hoare annotation was computed. [2022-01-09 23:26:45,257 INFO L858 garLoopResultBuilder]: For program point L205(lines 205 544) no Hoare annotation was computed. [2022-01-09 23:26:45,257 INFO L858 garLoopResultBuilder]: For program point L172(lines 172 555) no Hoare annotation was computed. [2022-01-09 23:26:45,257 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 566) no Hoare annotation was computed. [2022-01-09 23:26:45,257 INFO L858 garLoopResultBuilder]: For program point L106-1(lines 72 620) no Hoare annotation was computed. [2022-01-09 23:26:45,257 INFO L858 garLoopResultBuilder]: For program point L305(lines 305 309) no Hoare annotation was computed. [2022-01-09 23:26:45,257 INFO L858 garLoopResultBuilder]: For program point L305-2(lines 305 309) no Hoare annotation was computed. [2022-01-09 23:26:45,257 INFO L861 garLoopResultBuilder]: At program point L206(lines 205 544) the Hoare annotation is: true [2022-01-09 23:26:45,257 INFO L854 garLoopResultBuilder]: At program point L140(lines 136 567) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432)) (.cse2 (< 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 .cse1 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse2) (and .cse0 .cse1 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560) .cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)))) [2022-01-09 23:26:45,257 INFO L858 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-01-09 23:26:45,258 INFO L858 garLoopResultBuilder]: For program point L438(lines 438 442) no Hoare annotation was computed. [2022-01-09 23:26:45,258 INFO L858 garLoopResultBuilder]: For program point L438-2(lines 210 540) no Hoare annotation was computed. [2022-01-09 23:26:45,258 INFO L858 garLoopResultBuilder]: For program point L240(lines 240 245) no Hoare annotation was computed. [2022-01-09 23:26:45,258 INFO L858 garLoopResultBuilder]: For program point L373(lines 373 377) no Hoare annotation was computed. [2022-01-09 23:26:45,258 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 554) no Hoare annotation was computed. [2022-01-09 23:26:45,258 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 565) no Hoare annotation was computed. [2022-01-09 23:26:45,258 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 576) no Hoare annotation was computed. [2022-01-09 23:26:45,258 INFO L858 garLoopResultBuilder]: For program point L407(lines 407 412) no Hoare annotation was computed. [2022-01-09 23:26:45,258 INFO L858 garLoopResultBuilder]: For program point L407-2(lines 407 412) no Hoare annotation was computed. [2022-01-09 23:26:45,258 INFO L861 garLoopResultBuilder]: At program point L209(lines 208 543) the Hoare annotation is: true [2022-01-09 23:26:45,258 INFO L854 garLoopResultBuilder]: At program point L176(lines 172 555) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0) (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4512)) [2022-01-09 23:26:45,258 INFO L854 garLoopResultBuilder]: At program point L110(lines 109 576) the Hoare annotation is: (and (= 12292 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) [2022-01-09 23:26:45,259 INFO L854 garLoopResultBuilder]: At program point L541(lines 106 607) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0))) (let ((.cse6 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) (.cse8 (= 3 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560)) (.cse9 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352)) (.cse10 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (.cse11 (= 4400 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse4 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse12 (not .cse0)) (.cse5 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse7 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528))) (or (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4 .cse5 .cse6) (and (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1)) (and .cse0 .cse7 .cse8) (and .cse0 .cse3 .cse9 .cse10 .cse6) (and .cse3 .cse8) (and (= 4368 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse0 .cse3 .cse2 .cse11) (and (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse7 .cse9 .cse12 .cse10) (and .cse0 (= 4416 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse2) (and .cse0 .cse7 .cse11) (and .cse7 .cse4 .cse12 .cse5) (and .cse7 (<= 4512 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse1)))) [2022-01-09 23:26:45,259 INFO L858 garLoopResultBuilder]: For program point L178(lines 178 553) no Hoare annotation was computed. [2022-01-09 23:26:45,259 INFO L858 garLoopResultBuilder]: For program point L145(lines 145 564) no Hoare annotation was computed. [2022-01-09 23:26:45,259 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 575) no Hoare annotation was computed. [2022-01-09 23:26:45,259 INFO L861 garLoopResultBuilder]: At program point L608(lines 105 609) the Hoare annotation is: true [2022-01-09 23:26:45,259 INFO L854 garLoopResultBuilder]: At program point L146(lines 142 565) the Hoare annotation is: (and (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4432) (< 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) [2022-01-09 23:26:45,259 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2022-01-09 23:26:45,259 INFO L858 garLoopResultBuilder]: For program point L378-2(lines 378 382) no Hoare annotation was computed. [2022-01-09 23:26:45,259 INFO L858 garLoopResultBuilder]: For program point L577(lines 577 605) no Hoare annotation was computed. [2022-01-09 23:26:45,259 INFO L858 garLoopResultBuilder]: For program point L181(lines 181 552) no Hoare annotation was computed. [2022-01-09 23:26:45,259 INFO L858 garLoopResultBuilder]: For program point L148(lines 148 563) no Hoare annotation was computed. [2022-01-09 23:26:45,260 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 574) no Hoare annotation was computed. [2022-01-09 23:26:45,260 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 602) no Hoare annotation was computed. [2022-01-09 23:26:45,260 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 210 540) no Hoare annotation was computed. [2022-01-09 23:26:45,260 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 352) no Hoare annotation was computed. [2022-01-09 23:26:45,260 INFO L858 garLoopResultBuilder]: For program point L314-1(lines 314 328) no Hoare annotation was computed. [2022-01-09 23:26:45,260 INFO L854 garLoopResultBuilder]: At program point L215(lines 112 575) the Hoare annotation is: (and (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) [2022-01-09 23:26:45,260 INFO L854 garLoopResultBuilder]: At program point L182(lines 178 553) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0) (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4512)) [2022-01-09 23:26:45,260 INFO L858 garLoopResultBuilder]: For program point L612(lines 612 616) no Hoare annotation was computed. [2022-01-09 23:26:45,260 INFO L858 garLoopResultBuilder]: For program point L579(lines 579 588) no Hoare annotation was computed. [2022-01-09 23:26:45,260 INFO L858 garLoopResultBuilder]: For program point L612-2(lines 612 616) no Hoare annotation was computed. [2022-01-09 23:26:45,260 INFO L858 garLoopResultBuilder]: For program point L579-2(lines 578 600) no Hoare annotation was computed. [2022-01-09 23:26:45,260 INFO L858 garLoopResultBuilder]: For program point L282(lines 282 286) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L184(lines 184 551) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L151(lines 151 562) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 573) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L581(lines 581 585) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L449(lines 449 454) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L854 garLoopResultBuilder]: At program point L152(lines 148 563) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4448) (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 94) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L483(lines 483 487) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L318-2(lines 316 328) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L517-1(lines 517 521) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L418(lines 418 422) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L220(lines 220 224) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 550) no Hoare annotation was computed. [2022-01-09 23:26:45,261 INFO L858 garLoopResultBuilder]: For program point L154(lines 154 561) no Hoare annotation was computed. [2022-01-09 23:26:45,262 INFO L858 garLoopResultBuilder]: For program point L220-2(lines 210 540) no Hoare annotation was computed. [2022-01-09 23:26:45,262 INFO L858 garLoopResultBuilder]: For program point L121(lines 121 572) no Hoare annotation was computed. [2022-01-09 23:26:45,262 INFO L854 garLoopResultBuilder]: At program point L188(lines 184 551) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4528))) (or (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0) .cse0 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (and (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) (<= 4512 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse0))) [2022-01-09 23:26:45,262 INFO L858 garLoopResultBuilder]: For program point L89(lines 89 93) no Hoare annotation was computed. [2022-01-09 23:26:45,262 INFO L858 garLoopResultBuilder]: For program point L89-2(lines 86 94) no Hoare annotation was computed. [2022-01-09 23:26:45,262 INFO L861 garLoopResultBuilder]: At program point L619(lines 19 621) the Hoare annotation is: true [2022-01-09 23:26:45,262 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-01-09 23:26:45,262 INFO L858 garLoopResultBuilder]: For program point L256(lines 256 261) no Hoare annotation was computed. [2022-01-09 23:26:45,262 INFO L858 garLoopResultBuilder]: For program point L190(lines 190 549) no Hoare annotation was computed. [2022-01-09 23:26:45,262 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 560) no Hoare annotation was computed. [2022-01-09 23:26:45,262 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 571) no Hoare annotation was computed. [2022-01-09 23:26:45,262 INFO L858 garLoopResultBuilder]: For program point L488(lines 488 492) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L858 garLoopResultBuilder]: For program point L488-2(lines 488 492) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L854 garLoopResultBuilder]: At program point L158(lines 154 561) the Hoare annotation is: (and (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0) (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4464) (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) [2022-01-09 23:26:45,263 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 394) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L858 garLoopResultBuilder]: For program point L357(lines 357 361) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L858 garLoopResultBuilder]: For program point L291(lines 291 299) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L854 garLoopResultBuilder]: At program point L358(lines 72 620) the Hoare annotation is: false [2022-01-09 23:26:45,263 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 548) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 559) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L858 garLoopResultBuilder]: For program point L127(lines 127 570) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L858 garLoopResultBuilder]: For program point L590(lines 590 596) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 528) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L858 garLoopResultBuilder]: For program point L524-2(lines 524 528) no Hoare annotation was computed. [2022-01-09 23:26:45,263 INFO L854 garLoopResultBuilder]: At program point L194(lines 190 549) the Hoare annotation is: (let ((.cse0 (<= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560) .cse2) (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (and (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) (<= 4512 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse2))) [2022-01-09 23:26:45,264 INFO L854 garLoopResultBuilder]: At program point L128(lines 124 571) the Hoare annotation is: (and (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4400) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point L459(lines 459 463) no Hoare annotation was computed. [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 298) no Hoare annotation was computed. [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point L294-2(lines 210 540) no Hoare annotation was computed. [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 104) no Hoare annotation was computed. [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 547) no Hoare annotation was computed. [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point L163(lines 163 558) no Hoare annotation was computed. [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point L130(lines 130 569) no Hoare annotation was computed. [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point L97(lines 97 101) no Hoare annotation was computed. [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 366) no Hoare annotation was computed. [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 618) no Hoare annotation was computed. [2022-01-09 23:26:45,264 INFO L858 garLoopResultBuilder]: For program point L496-1(lines 496 508) no Hoare annotation was computed. [2022-01-09 23:26:45,265 INFO L858 garLoopResultBuilder]: For program point L430(lines 430 434) no Hoare annotation was computed. [2022-01-09 23:26:45,265 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 249) no Hoare annotation was computed. [2022-01-09 23:26:45,265 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 546) no Hoare annotation was computed. [2022-01-09 23:26:45,265 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 557) no Hoare annotation was computed. [2022-01-09 23:26:45,265 INFO L858 garLoopResultBuilder]: For program point L232-2(lines 210 540) no Hoare annotation was computed. [2022-01-09 23:26:45,265 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 568) no Hoare annotation was computed. [2022-01-09 23:26:45,265 INFO L854 garLoopResultBuilder]: At program point L200(lines 196 547) the Hoare annotation is: (let ((.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse2 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560) .cse1 .cse2 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|)) (and (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1 (not .cse0) .cse2))) [2022-01-09 23:26:45,265 INFO L854 garLoopResultBuilder]: At program point L134(lines 130 569) the Hoare annotation is: (and (not (<= 4400 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) [2022-01-09 23:26:45,268 INFO L732 BasicCegarLoop]: Path program histogram: [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] [2022-01-09 23:26:45,269 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-09 23:26:45,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 11:26:45 BoogieIcfgContainer [2022-01-09 23:26:45,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-09 23:26:45,287 INFO L158 Benchmark]: Toolchain (without parser) took 15189.83ms. Allocated memory was 190.8MB in the beginning and 331.4MB in the end (delta: 140.5MB). Free memory was 140.0MB in the beginning and 288.5MB in the end (delta: -148.5MB). Peak memory consumption was 174.3MB. Max. memory is 8.0GB. [2022-01-09 23:26:45,287 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 190.8MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-09 23:26:45,287 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.15ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 139.7MB in the beginning and 204.1MB in the end (delta: -64.4MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. [2022-01-09 23:26:45,288 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.00ms. Allocated memory is still 229.6MB. Free memory was 204.1MB in the beginning and 201.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-09 23:26:45,288 INFO L158 Benchmark]: Boogie Preprocessor took 25.57ms. Allocated memory is still 229.6MB. Free memory was 201.6MB in the beginning and 199.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-01-09 23:26:45,288 INFO L158 Benchmark]: RCFGBuilder took 522.01ms. Allocated memory is still 229.6MB. Free memory was 199.5MB in the beginning and 170.1MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2022-01-09 23:26:45,288 INFO L158 Benchmark]: TraceAbstraction took 14301.52ms. Allocated memory was 229.6MB in the beginning and 331.4MB in the end (delta: 101.7MB). Free memory was 169.6MB in the beginning and 288.5MB in the end (delta: -118.9MB). Peak memory consumption was 165.3MB. Max. memory is 8.0GB. [2022-01-09 23:26:45,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 190.8MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 297.15ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 139.7MB in the beginning and 204.1MB in the end (delta: -64.4MB). Peak memory consumption was 10.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 39.00ms. Allocated memory is still 229.6MB. Free memory was 204.1MB in the beginning and 201.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.57ms. Allocated memory is still 229.6MB. Free memory was 201.6MB in the beginning and 199.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 522.01ms. Allocated memory is still 229.6MB. Free memory was 199.5MB in the beginning and 170.1MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 14301.52ms. Allocated memory was 229.6MB in the beginning and 331.4MB in the end (delta: 101.7MB). Free memory was 169.6MB in the beginning and 288.5MB in the end (delta: -118.9MB). Peak memory consumption was 165.3MB. 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: 618]: 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, 124 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.2s, OverallIterations: 26, TraceHistogramMax: 21, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2451 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2451 mSDsluCounter, 7099 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2679 mSDsCounter, 708 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2874 IncrementalHoareTripleChecker+Invalid, 3582 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 708 mSolverCounterUnsat, 4420 mSDtfsCounter, 2874 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3703 GetRequests, 3657 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2972occurred in iteration=22, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 26 MinimizatonAttempts, 2241 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 99 NumberOfFragments, 426 HoareAnnotationTreeSize, 22 FomulaSimplifications, 3078 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 22 FomulaSimplificationsInter, 3386 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 8290 NumberOfCodeBlocks, 8290 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 9572 ConstructedInterpolants, 0 QuantifiedInterpolants, 12914 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3863 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 34 InterpolantComputations, 23 PerfectInterpolantSequences, 43484/43605 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: 109]: Loop Invariant Derived loop invariant: 12292 == s__state && blastFlag == 0 - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: (!(4400 <= s__state) && blastFlag == 1) && 4352 <= s__state - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: ((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4560) && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0) || (((2 == blastFlag && s__state <= 4560) && !(s__hit == 0)) && 4560 <= s__state) - InvariantResult [Line: 142]: Loop Invariant Derived loop invariant: ((s__hit == 0 && s__state <= 4432) && 4384 < s__state) && blastFlag <= 4 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: (s__state < 4400 && 4352 <= s__state) && blastFlag == 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: (((s__hit == 0 && s__state <= 4432) && 2 == blastFlag) && 4384 < s__state) || ((((s__hit == 0 && s__state <= 4432) && s__s3__tmp__next_state___0 <= 4560) && 4384 < s__state) && blastFlag <= 4) - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: ((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4512 - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: ((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4352) && 4352 <= s__state) && 4560 <= s__s3__tmp__next_state___0) || ((((3 == s__s3__tmp__next_state___0 && 2 == blastFlag) && s__state <= 4352) && !(s__hit == 0)) && 4352 <= s__state) - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: ((((4432 <= s__state && s__hit == 0) && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4560) || (((4432 <= s__state && s__hit == 0) && s__state <= 4560) && blastFlag <= 4)) || ((2 == blastFlag && 4512 <= s__state) && s__state <= 4560) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: ((((((((((((((4432 <= s__state && s__hit == 0) && s__state <= 4528) && blastFlag <= 4) || ((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4560) && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0)) || (4384 == s__state && blastFlag == 1)) || ((s__hit == 0 && 2 == blastFlag) && 3 == s__state)) || ((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && s__state <= 4352) && 4352 <= s__state) && 4560 <= s__s3__tmp__next_state___0)) || (s__s3__tmp__next_state___0 <= 4560 && 3 == s__state)) || (4368 == s__state && blastFlag == 0)) || (((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && blastFlag <= 4) && 4400 == s__state)) || ((((3 == s__s3__tmp__next_state___0 && 2 == blastFlag) && s__state <= 4352) && !(s__hit == 0)) && 4352 <= s__state)) || ((s__hit == 0 && 4416 == s__state) && blastFlag <= 4)) || ((s__hit == 0 && 2 == blastFlag) && 4400 == s__state)) || (((2 == blastFlag && s__state <= 4560) && !(s__hit == 0)) && 4560 <= s__state)) || ((2 == blastFlag && 4512 <= s__state) && s__state <= 4528) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: ((4432 <= s__state && s__hit == 0) && s__state <= 4448) && blastFlag <= 4 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: s__state <= 4352 && blastFlag == 0 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((4432 <= s__state && s__hit == 0) && s__state <= 4464) && blastFlag <= 4 - InvariantResult [Line: 184]: Loop Invariant Derived loop invariant: (((4432 <= s__state && s__hit == 0) && s__state <= 4528) && blastFlag <= 4) || ((2 == blastFlag && 4512 <= s__state) && s__state <= 4528) - InvariantResult [Line: 160]: Loop Invariant Derived loop invariant: ((4432 <= s__state && s__hit == 0) && s__state <= 4480) && blastFlag <= 4 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: ((4432 <= s__state && s__hit == 0) && blastFlag <= 4) && s__state <= 4512 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-01-09 23:26:45,323 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...