/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 18:36:38,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 18:36:38,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 18:36:38,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 18:36:38,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 18:36:38,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 18:36:38,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 18:36:38,324 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 18:36:38,341 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 18:36:38,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 18:36:38,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 18:36:38,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 18:36:38,342 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 18:36:38,342 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 18:36:38,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 18:36:38,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 18:36:38,343 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 18:36:38,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 18:36:38,343 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 18:36:38,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 18:36:38,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 18:36:38,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 18:36:38,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 18:36:38,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 18:36:38,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 18:36:38,344 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 18:36:38,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 18:36:38,344 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 18:36:38,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 18:36:38,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 18:36:38,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 18:36:38,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 18:36:38,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 18:36:38,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:36:38,345 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 18:36:38,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 18:36:38,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 18:36:38,346 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 18:36:38,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 18:36:38,346 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 18:36:38,346 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 18:36:38,346 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 18:36:38,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 18:36:38,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 18:36:38,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 18:36:38,560 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 18:36:38,561 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 18:36:38,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c [2022-03-03 18:36:38,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df9d40db1/dfc93f56a8a84575b4d805cb72980e4d/FLAGa6c3b399f [2022-03-03 18:36:38,984 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 18:36:38,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/atomic/11b-double-end.c [2022-03-03 18:36:38,984 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2022-03-03 18:36:39,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df9d40db1/dfc93f56a8a84575b4d805cb72980e4d/FLAGa6c3b399f [2022-03-03 18:36:39,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df9d40db1/dfc93f56a8a84575b4d805cb72980e4d [2022-03-03 18:36:39,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 18:36:39,040 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 18:36:39,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 18:36:39,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 18:36:39,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 18:36:39,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eee610d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39, skipping insertion in model container [2022-03-03 18:36:39,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 18:36:39,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 18:36:39,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 18:36:39,205 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 18:36:39,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 18:36:39,223 INFO L208 MainTranslator]: Completed translation [2022-03-03 18:36:39,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39 WrapperNode [2022-03-03 18:36:39,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 18:36:39,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 18:36:39,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 18:36:39,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 18:36:39,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,248 INFO L137 Inliner]: procedures = 10, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-03-03 18:36:39,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 18:36:39,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 18:36:39,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 18:36:39,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 18:36:39,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 18:36:39,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 18:36:39,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 18:36:39,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 18:36:39,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39" (1/1) ... [2022-03-03 18:36:39,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 18:36:39,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 18:36:39,288 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) [2022-03-03 18:36:39,306 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 [2022-03-03 18:36:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 18:36:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-03 18:36:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-03 18:36:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2022-03-03 18:36:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2022-03-03 18:36:39,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 18:36:39,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 18:36:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 18:36:39,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 18:36:39,322 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 18:36:39,374 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 18:36:39,376 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 18:36:39,480 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 18:36:39,485 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 18:36:39,485 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 18:36:39,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:36:39 BoogieIcfgContainer [2022-03-03 18:36:39,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 18:36:39,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 18:36:39,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 18:36:39,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 18:36:39,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 06:36:39" (1/3) ... [2022-03-03 18:36:39,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6643b2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:36:39, skipping insertion in model container [2022-03-03 18:36:39,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 06:36:39" (2/3) ... [2022-03-03 18:36:39,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6643b2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 06:36:39, skipping insertion in model container [2022-03-03 18:36:39,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 06:36:39" (3/3) ... [2022-03-03 18:36:39,508 INFO L111 eAbstractionObserver]: Analyzing ICFG 11b-double-end.c [2022-03-03 18:36:39,512 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 18:36:39,512 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 18:36:39,513 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 18:36:39,513 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 18:36:39,550 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,551 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,551 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,551 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,551 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,551 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,552 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,552 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,552 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,552 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,553 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,553 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,560 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,560 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,560 WARN L322 ript$VariableManager]: TermVariabe |fooThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,561 WARN L322 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 18:36:39,563 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-03-03 18:36:39,628 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 18:36:39,642 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=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 18:36:39,642 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-03 18:36:39,654 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 30 transitions, 65 flow [2022-03-03 18:36:39,673 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 44 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 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) [2022-03-03 18:36:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 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) [2022-03-03 18:36:39,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-03-03 18:36:39,681 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:36:39,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:36:39,682 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 18:36:39,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:36:39,688 INFO L85 PathProgramCache]: Analyzing trace with hash -498706984, now seen corresponding path program 1 times [2022-03-03 18:36:39,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:36:39,696 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682054322] [2022-03-03 18:36:39,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:36:39,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:36:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:36:39,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:36:39,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:36:39,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682054322] [2022-03-03 18:36:39,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682054322] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:36:39,883 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:36:39,883 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 18:36:39,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482546600] [2022-03-03 18:36:39,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:36:39,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 18:36:39,888 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:36:39,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 18:36:39,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:36:39,915 INFO L87 Difference]: Start difference. First operand has 44 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 43 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) Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-03-03 18:36:39,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:36:39,973 INFO L93 Difference]: Finished difference Result 48 states and 66 transitions. [2022-03-03 18:36:39,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 18:36:39,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2022-03-03 18:36:39,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:36:39,983 INFO L225 Difference]: With dead ends: 48 [2022-03-03 18:36:39,983 INFO L226 Difference]: Without dead ends: 33 [2022-03-03 18:36:39,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-03 18:36:39,988 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:36:39,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 66 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:36:40,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-03-03 18:36:40,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-03-03 18:36:40,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 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) [2022-03-03 18:36:40,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2022-03-03 18:36:40,017 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 19 [2022-03-03 18:36:40,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:36:40,017 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2022-03-03 18:36:40,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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) [2022-03-03 18:36:40,017 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2022-03-03 18:36:40,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-03 18:36:40,018 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:36:40,018 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:36:40,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 18:36:40,019 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 18:36:40,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:36:40,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1262018775, now seen corresponding path program 1 times [2022-03-03 18:36:40,020 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:36:40,020 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518868481] [2022-03-03 18:36:40,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:36:40,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:36:40,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 18:36:40,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 18:36:40,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 18:36:40,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518868481] [2022-03-03 18:36:40,057 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518868481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 18:36:40,057 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 18:36:40,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 18:36:40,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270605076] [2022-03-03 18:36:40,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 18:36:40,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 18:36:40,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 18:36:40,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 18:36:40,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:36:40,059 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-03-03 18:36:40,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 18:36:40,069 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2022-03-03 18:36:40,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 18:36:40,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2022-03-03 18:36:40,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 18:36:40,070 INFO L225 Difference]: With dead ends: 36 [2022-03-03 18:36:40,070 INFO L226 Difference]: Without dead ends: 31 [2022-03-03 18:36:40,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 18:36:40,072 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 18:36:40,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 39 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 18:36:40,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-03-03 18:36:40,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-03-03 18:36:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 18:36:40,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-03-03 18:36:40,077 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 21 [2022-03-03 18:36:40,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 18:36:40,077 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-03-03 18:36:40,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-03-03 18:36:40,078 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-03-03 18:36:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-03-03 18:36:40,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 18:36:40,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 18:36:40,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 18:36:40,079 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 18:36:40,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 18:36:40,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1262015055, now seen corresponding path program 2 times [2022-03-03 18:36:40,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 18:36:40,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915523906] [2022-03-03 18:36:40,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 18:36:40,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 18:36:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:36:40,096 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-03 18:36:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-03 18:36:40,120 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-03 18:36:40,121 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-03 18:36:40,122 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (1 of 2 remaining) [2022-03-03 18:36:40,123 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-03 18:36:40,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 18:36:40,126 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1] [2022-03-03 18:36:40,129 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 18:36:40,129 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 18:36:40,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 06:36:40 BasicIcfg [2022-03-03 18:36:40,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 18:36:40,148 INFO L158 Benchmark]: Toolchain (without parser) took 1107.06ms. Allocated memory was 190.8MB in the beginning and 251.7MB in the end (delta: 60.8MB). Free memory was 132.1MB in the beginning and 175.5MB in the end (delta: -43.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2022-03-03 18:36:40,148 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 18:36:40,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.60ms. Allocated memory was 190.8MB in the beginning and 251.7MB in the end (delta: 60.8MB). Free memory was 131.8MB in the beginning and 221.6MB in the end (delta: -89.8MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. [2022-03-03 18:36:40,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.32ms. Allocated memory is still 251.7MB. Free memory was 221.1MB in the beginning and 220.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 18:36:40,149 INFO L158 Benchmark]: Boogie Preprocessor took 11.99ms. Allocated memory is still 251.7MB. Free memory was 220.0MB in the beginning and 219.0MB in the end (delta: 998.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 18:36:40,150 INFO L158 Benchmark]: RCFGBuilder took 225.93ms. Allocated memory is still 251.7MB. Free memory was 219.0MB in the beginning and 210.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-03 18:36:40,150 INFO L158 Benchmark]: TraceAbstraction took 658.53ms. Allocated memory is still 251.7MB. Free memory was 209.6MB in the beginning and 175.5MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2022-03-03 18:36:40,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 182.60ms. Allocated memory was 190.8MB in the beginning and 251.7MB in the end (delta: 60.8MB). Free memory was 131.8MB in the beginning and 221.6MB in the end (delta: -89.8MB). Peak memory consumption was 7.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.32ms. Allocated memory is still 251.7MB. Free memory was 221.1MB in the beginning and 220.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.99ms. Allocated memory is still 251.7MB. Free memory was 220.0MB in the beginning and 219.0MB in the end (delta: 998.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 225.93ms. Allocated memory is still 251.7MB. Free memory was 219.0MB in the beginning and 210.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 658.53ms. Allocated memory is still 251.7MB. Free memory was 209.6MB in the beginning and 175.5MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. 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 - CounterExampleResult [Line: 32]: assertion can be violated assertion can be violated We found a FailurePath: [L15] 0 int x = -1; VAL [x=-1] [L23] 0 pthread_t threadId; VAL [threadId={2:0}, x=-1] [L24] FCALL, FORK 0 pthread_create(&threadId, NULL, &foo, NULL) VAL [arg={0:0}, pthread_create(&threadId, NULL, &foo, NULL)=-1, threadId={2:0}, x=-1] [L27] 0 x = 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1] [L18] 1 x = 0 VAL [arg={0:0}, arg={0:0}, x=0] [L29] 0 x = x + 1 VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1] [L32] 0 CodeAnnotStmt[Assertion] VAL [arg={0:0}, arg={0:0}, threadId={2:0}, x=1] - UnprovableResult [Line: 24]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 105 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 51 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 44 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2022-03-03 18:36:40,185 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...