/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/seq-pthread/cs_lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:49:13,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:49:13,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:49:13,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 01:49:13,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 01:49:13,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 01:49:13,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 01:49:13,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 01:49:13,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 01:49:13,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 01:49:13,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 01:49:13,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 01:49:13,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 01:49:13,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 01:49:13,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 01:49:13,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 01:49:13,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 01:49:13,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:49:13,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:49:13,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:49:13,375 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 [2022-01-10 01:49:13,405 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:49:13,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:49:13,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:49:13,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:49:13,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:49:13,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:49:13,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:49:13,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:49:13,407 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:49:13,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:49:13,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:49:13,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:49:13,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:49:13,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:49:13,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:49:13,409 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:49:13,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:49:13,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:49:13,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:49:13,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:49:13,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:49:13,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:49:13,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:49:13,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:49:13,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:49:13,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:49:13,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:49:13,411 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:49:13,411 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:49:13,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:49:13,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:49:13,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:49:13,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:49:13,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:49:13,649 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:49:13,650 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:49:13,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_lamport.i [2022-01-10 01:49:13,705 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb6263bd6/47728c8bd61446f78938a4239223d6e5/FLAG92b6d3c57 [2022-01-10 01:49:14,099 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:49:14,100 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_lamport.i [2022-01-10 01:49:14,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb6263bd6/47728c8bd61446f78938a4239223d6e5/FLAG92b6d3c57 [2022-01-10 01:49:14,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb6263bd6/47728c8bd61446f78938a4239223d6e5 [2022-01-10 01:49:14,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:49:14,457 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:49:14,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:49:14,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:49:14,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:49:14,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:49:14" (1/1) ... [2022-01-10 01:49:14,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9a79245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:14, skipping insertion in model container [2022-01-10 01:49:14,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:49:14" (1/1) ... [2022-01-10 01:49:14,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:49:14,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:49:14,795 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_lamport.i[23604,23617] [2022-01-10 01:49:14,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:49:14,912 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:49:14,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-pthread/cs_lamport.i[23604,23617] [2022-01-10 01:49:14,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:49:15,022 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:49:15,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15 WrapperNode [2022-01-10 01:49:15,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:49:15,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:49:15,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:49:15,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:49:15,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15" (1/1) ... [2022-01-10 01:49:15,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15" (1/1) ... [2022-01-10 01:49:15,095 INFO L137 Inliner]: procedures = 145, calls = 351, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 461 [2022-01-10 01:49:15,096 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:49:15,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:49:15,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:49:15,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:49:15,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15" (1/1) ... [2022-01-10 01:49:15,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15" (1/1) ... [2022-01-10 01:49:15,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15" (1/1) ... [2022-01-10 01:49:15,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15" (1/1) ... [2022-01-10 01:49:15,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15" (1/1) ... [2022-01-10 01:49:15,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15" (1/1) ... [2022-01-10 01:49:15,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15" (1/1) ... [2022-01-10 01:49:15,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:49:15,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:49:15,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:49:15,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:49:15,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15" (1/1) ... [2022-01-10 01:49:15,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:49:15,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:49:15,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 01:49:15,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 01:49:15,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-10 01:49:15,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-10 01:49:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-10 01:49:15,236 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-10 01:49:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:49:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 01:49:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-01-10 01:49:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-01-10 01:49:15,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-01-10 01:49:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-01-10 01:49:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-01-10 01:49:15,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-01-10 01:49:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-01-10 01:49:15,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-01-10 01:49:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 01:49:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-01-10 01:49:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-01-10 01:49:15,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-01-10 01:49:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:49:15,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:49:15,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:49:15,414 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:49:15,415 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:49:18,076 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:49:18,082 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:49:18,082 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-01-10 01:49:18,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:49:18 BoogieIcfgContainer [2022-01-10 01:49:18,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:49:18,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:49:18,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:49:18,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:49:18,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:49:14" (1/3) ... [2022-01-10 01:49:18,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e758350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:49:18, skipping insertion in model container [2022-01-10 01:49:18,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:49:15" (2/3) ... [2022-01-10 01:49:18,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e758350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:49:18, skipping insertion in model container [2022-01-10 01:49:18,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:49:18" (3/3) ... [2022-01-10 01:49:18,090 INFO L111 eAbstractionObserver]: Analyzing ICFG cs_lamport.i [2022-01-10 01:49:18,094 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:49:18,095 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 01:49:18,136 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:49:18,145 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 01:49:18,145 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 01:49:18,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 77 states have internal predecessors, (100), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-01-10 01:49:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-01-10 01:49:18,180 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:49:18,181 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:49:18,181 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:49:18,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:49:18,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1647401659, now seen corresponding path program 1 times [2022-01-10 01:49:18,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:49:18,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296676404] [2022-01-10 01:49:18,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:49:18,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:49:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-01-10 01:49:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-01-10 01:49:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-01-10 01:49:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-01-10 01:49:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-01-10 01:49:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-01-10 01:49:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-01-10 01:49:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-01-10 01:49:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-01-10 01:49:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-01-10 01:49:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-01-10 01:49:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-01-10 01:49:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-01-10 01:49:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-01-10 01:49:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-01-10 01:49:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-01-10 01:49:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:55,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-01-10 01:49:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:56,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-01-10 01:49:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:56,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-01-10 01:49:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:56,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-01-10 01:49:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:56,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-01-10 01:49:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:56,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-01-10 01:49:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:49:56,052 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-01-10 01:49:56,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:49:56,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296676404] [2022-01-10 01:49:56,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296676404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:49:56,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:49:56,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:49:56,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641273695] [2022-01-10 01:49:56,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:49:56,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:49:56,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:49:56,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:49:56,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:49:56,093 INFO L87 Difference]: Start difference. First operand has 119 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 77 states have internal predecessors, (100), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-01-10 01:49:56,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:49:56,186 INFO L93 Difference]: Finished difference Result 240 states and 384 transitions. [2022-01-10 01:49:56,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:49:56,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 144 [2022-01-10 01:49:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:49:56,202 INFO L225 Difference]: With dead ends: 240 [2022-01-10 01:49:56,202 INFO L226 Difference]: Without dead ends: 119 [2022-01-10 01:49:56,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:49:56,208 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 4 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:49:56,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 328 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:49:56,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-01-10 01:49:56,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 116. [2022-01-10 01:49:56,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 74 states have internal predecessors, (93), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-01-10 01:49:56,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 165 transitions. [2022-01-10 01:49:56,254 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 165 transitions. Word has length 144 [2022-01-10 01:49:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:49:56,254 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 165 transitions. [2022-01-10 01:49:56,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-01-10 01:49:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 165 transitions. [2022-01-10 01:49:56,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-01-10 01:49:56,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:49:56,258 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:49:56,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 01:49:56,259 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:49:56,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:49:56,260 INFO L85 PathProgramCache]: Analyzing trace with hash 284229075, now seen corresponding path program 1 times [2022-01-10 01:49:56,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:49:56,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459867191] [2022-01-10 01:49:56,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:49:56,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:50:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-01-10 01:50:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-01-10 01:50:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-01-10 01:50:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-01-10 01:50:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-01-10 01:50:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-01-10 01:50:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-01-10 01:50:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-01-10 01:50:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-01-10 01:50:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-01-10 01:50:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-01-10 01:50:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-01-10 01:50:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-01-10 01:50:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-01-10 01:50:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-01-10 01:50:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-01-10 01:50:04,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-01-10 01:50:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-01-10 01:50:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-01-10 01:50:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-01-10 01:50:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-01-10 01:50:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-01-10 01:50:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:04,813 INFO L134 CoverageAnalysis]: Checked inductivity of 925 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-01-10 01:50:04,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:50:04,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459867191] [2022-01-10 01:50:04,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459867191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:50:04,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:50:04,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 01:50:04,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162094866] [2022-01-10 01:50:04,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:50:04,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 01:50:04,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:50:04,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 01:50:04,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:50:04,819 INFO L87 Difference]: Start difference. First operand 116 states and 165 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-01-10 01:50:04,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:50:04,865 INFO L93 Difference]: Finished difference Result 231 states and 330 transitions. [2022-01-10 01:50:04,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 01:50:04,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 147 [2022-01-10 01:50:04,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:50:04,870 INFO L225 Difference]: With dead ends: 231 [2022-01-10 01:50:04,871 INFO L226 Difference]: Without dead ends: 118 [2022-01-10 01:50:04,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 01:50:04,878 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 1 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:50:04,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 321 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 01:50:04,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-01-10 01:50:04,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2022-01-10 01:50:04,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 75 states have internal predecessors, (94), 36 states have call successors, (36), 5 states have call predecessors, (36), 5 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2022-01-10 01:50:04,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 166 transitions. [2022-01-10 01:50:04,897 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 166 transitions. Word has length 147 [2022-01-10 01:50:04,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:50:04,897 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 166 transitions. [2022-01-10 01:50:04,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2022-01-10 01:50:04,897 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 166 transitions. [2022-01-10 01:50:04,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-01-10 01:50:04,900 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:50:04,900 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:50:04,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 01:50:04,901 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:50:04,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:50:04,901 INFO L85 PathProgramCache]: Analyzing trace with hash -2059588459, now seen corresponding path program 1 times [2022-01-10 01:50:04,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:50:04,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900773662] [2022-01-10 01:50:04,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:50:04,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:50:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-01-10 01:50:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-01-10 01:50:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-01-10 01:50:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-01-10 01:50:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-01-10 01:50:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-01-10 01:50:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-01-10 01:50:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-01-10 01:50:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-01-10 01:50:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-01-10 01:50:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-01-10 01:50:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-01-10 01:50:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-01-10 01:50:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-01-10 01:50:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-01-10 01:50:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-01-10 01:50:13,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-01-10 01:50:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-01-10 01:50:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-01-10 01:50:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-01-10 01:50:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-01-10 01:50:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-01-10 01:50:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:50:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 926 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2022-01-10 01:50:13,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:50:13,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900773662] [2022-01-10 01:50:13,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900773662] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-10 01:50:13,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902479807] [2022-01-10 01:50:13,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:50:13,506 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-10 01:50:13,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:50:13,523 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) [2022-01-10 01:50:13,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process