/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-MCRwithDepranks-BasicCegarLoop.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/sigma.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 01:13:58,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 01:13:58,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 01:13:58,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-10 01:13:58,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 01:13:58,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 01:13:58,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 01:13:59,001 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-MCRwithDepranks-BasicCegarLoop.epf [2022-02-10 01:13:59,025 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 01:13:59,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 01:13:59,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 01:13:59,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 01:13:59,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 01:13:59,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 01:13:59,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 01:13:59,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 01:13:59,027 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 01:13:59,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 01:13:59,027 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 01:13:59,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 01:13:59,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 01:13:59,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 01:13:59,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 01:13:59,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 01:13:59,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 01:13:59,028 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 01:13:59,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 01:13:59,028 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 01:13:59,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 01:13:59,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 01:13:59,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 01:13:59,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 01:13:59,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 01:13:59,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 01:13:59,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 01:13:59,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 01:13:59,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 01:13:59,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 01:13:59,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 01:13:59,029 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 01:13:59,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 01:13:59,029 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-10 01:13:59,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 01:13:59,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 01:13:59,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 01:13:59,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 01:13:59,245 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-10 01:13:59,245 INFO L275 PluginConnector]: CDTParser initialized [2022-02-10 01:13:59,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sigma.i [2022-02-10 01:13:59,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2cbd8226/f1f5f556fd80483c8631e605c4c193dd/FLAG313712a30 [2022-02-10 01:13:59,773 INFO L306 CDTParser]: Found 1 translation units. [2022-02-10 01:13:59,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i [2022-02-10 01:13:59,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2cbd8226/f1f5f556fd80483c8631e605c4c193dd/FLAG313712a30 [2022-02-10 01:14:00,099 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2cbd8226/f1f5f556fd80483c8631e605c4c193dd [2022-02-10 01:14:00,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 01:14:00,102 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-10 01:14:00,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-10 01:14:00,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-10 01:14:00,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-10 01:14:00,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd208ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00, skipping insertion in model container [2022-02-10 01:14:00,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-10 01:14:00,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-10 01:14:00,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i[55285,55298] [2022-02-10 01:14:00,470 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 01:14:00,475 INFO L203 MainTranslator]: Completed pre-run [2022-02-10 01:14:00,525 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/sigma.i[55285,55298] [2022-02-10 01:14:00,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-10 01:14:00,583 INFO L208 MainTranslator]: Completed translation [2022-02-10 01:14:00,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00 WrapperNode [2022-02-10 01:14:00,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-10 01:14:00,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 01:14:00,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 01:14:00,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 01:14:00,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,632 INFO L137 Inliner]: procedures = 323, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 88 [2022-02-10 01:14:00,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 01:14:00,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 01:14:00,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 01:14:00,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 01:14:00,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 01:14:00,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 01:14:00,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 01:14:00,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 01:14:00,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00" (1/1) ... [2022-02-10 01:14:00,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 01:14:00,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 01:14:00,684 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) [2022-02-10 01:14:00,689 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 [2022-02-10 01:14:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-10 01:14:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-02-10 01:14:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-10 01:14:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-10 01:14:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-10 01:14:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-10 01:14:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-10 01:14:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-02-10 01:14:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-10 01:14:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-02-10 01:14:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-02-10 01:14:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 01:14:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 01:14:00,719 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 01:14:00,794 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 01:14:00,796 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 01:14:00,938 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 01:14:00,946 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 01:14:00,946 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-10 01:14:00,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 01:14:00 BoogieIcfgContainer [2022-02-10 01:14:00,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 01:14:00,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 01:14:00,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 01:14:00,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 01:14:00,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.02 01:14:00" (1/3) ... [2022-02-10 01:14:00,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3a4b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 01:14:00, skipping insertion in model container [2022-02-10 01:14:00,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.02 01:14:00" (2/3) ... [2022-02-10 01:14:00,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3a4b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 01:14:00, skipping insertion in model container [2022-02-10 01:14:00,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 01:14:00" (3/3) ... [2022-02-10 01:14:00,963 INFO L111 eAbstractionObserver]: Analyzing ICFG sigma.i [2022-02-10 01:14:00,967 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 01:14:00,968 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 01:14:00,968 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 01:14:00,968 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 01:14:01,007 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,007 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,007 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,007 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,008 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,008 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,008 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,008 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,009 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,012 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,012 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,012 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,012 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:01,015 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-10 01:14:01,057 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 01:14:01,063 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 [2022-02-10 01:14:01,064 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 01:14:01,072 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 104 transitions, 216 flow [2022-02-10 01:14:01,105 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 306 states, 301 states have (on average 1.717607973421927) internal successors, (517), 305 states have internal predecessors, (517), 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) [2022-02-10 01:14:01,916 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 19662 transitions and produced 11734 states. [2022-02-10 01:14:02,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 11734 states, 9284 states have (on average 1.2828522188711762) internal successors, (11910), 11733 states have internal predecessors, (11910), 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) [2022-02-10 01:14:02,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-10 01:14:02,035 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:14:02,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 01:14:02,037 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 01:14:02,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:14:02,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1933087549, now seen corresponding path program 1 times [2022-02-10 01:14:02,052 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:14:02,053 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567729291] [2022-02-10 01:14:02,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:14:02,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:14:02,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:14:02,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:14:02,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:14:02,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567729291] [2022-02-10 01:14:02,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567729291] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:14:02,318 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:14:02,318 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 01:14:02,319 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507153065] [2022-02-10 01:14:02,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:14:02,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 01:14:02,322 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:14:02,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 01:14:02,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 01:14:02,435 INFO L87 Difference]: Start difference. First operand has 11734 states, 9284 states have (on average 1.2828522188711762) internal successors, (11910), 11733 states have internal predecessors, (11910), 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 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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) [2022-02-10 01:14:02,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:14:02,506 INFO L93 Difference]: Finished difference Result 1639 states and 1661 transitions. [2022-02-10 01:14:02,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 01:14:02,509 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-02-10 01:14:02,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:14:02,526 INFO L225 Difference]: With dead ends: 1639 [2022-02-10 01:14:02,526 INFO L226 Difference]: Without dead ends: 655 [2022-02-10 01:14:02,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 01:14:02,532 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:14:02,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:14:02,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2022-02-10 01:14:02,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 150. [2022-02-10 01:14:02,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 147 states have (on average 1.08843537414966) internal successors, (160), 149 states have internal predecessors, (160), 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) [2022-02-10 01:14:02,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 160 transitions. [2022-02-10 01:14:02,584 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 160 transitions. Word has length 51 [2022-02-10 01:14:02,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:14:02,585 INFO L470 AbstractCegarLoop]: Abstraction has 150 states and 160 transitions. [2022-02-10 01:14:02,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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) [2022-02-10 01:14:02,587 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 160 transitions. [2022-02-10 01:14:02,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-10 01:14:02,590 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:14:02,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 01:14:02,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-10 01:14:02,591 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 01:14:02,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:14:02,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1541806852, now seen corresponding path program 1 times [2022-02-10 01:14:02,593 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:14:02,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520619271] [2022-02-10 01:14:02,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:14:02,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:14:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:14:02,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:14:02,728 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:14:02,728 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520619271] [2022-02-10 01:14:02,728 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520619271] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:14:02,728 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:14:02,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 01:14:02,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15100882] [2022-02-10 01:14:02,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:14:02,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 01:14:02,730 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:14:02,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 01:14:02,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 01:14:02,731 INFO L87 Difference]: Start difference. First operand 150 states and 160 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-02-10 01:14:02,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:14:02,787 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2022-02-10 01:14:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 01:14:02,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-02-10 01:14:02,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:14:02,788 INFO L225 Difference]: With dead ends: 115 [2022-02-10 01:14:02,788 INFO L226 Difference]: Without dead ends: 115 [2022-02-10 01:14:02,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 01:14:02,789 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 83 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:14:02,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 129 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:14:02,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-02-10 01:14:02,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-02-10 01:14:02,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 113 states have (on average 1.0707964601769913) internal successors, (121), 114 states have internal predecessors, (121), 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) [2022-02-10 01:14:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 121 transitions. [2022-02-10 01:14:02,794 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 121 transitions. Word has length 51 [2022-02-10 01:14:02,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:14:02,794 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 121 transitions. [2022-02-10 01:14:02,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-02-10 01:14:02,795 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 121 transitions. [2022-02-10 01:14:02,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-02-10 01:14:02,799 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:14:02,800 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 01:14:02,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-10 01:14:02,800 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 01:14:02,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:14:02,801 INFO L85 PathProgramCache]: Analyzing trace with hash 190155836, now seen corresponding path program 1 times [2022-02-10 01:14:02,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:14:02,804 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185829812] [2022-02-10 01:14:02,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:14:02,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:14:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 01:14:02,870 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 01:14:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 01:14:02,969 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 01:14:02,969 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-10 01:14:02,970 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 01:14:02,971 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 01:14:02,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-10 01:14:02,973 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-10 01:14:02,974 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 01:14:02,974 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-02-10 01:14:02,985 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,985 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,985 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,986 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,986 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,986 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,986 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,986 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,987 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,987 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,991 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,991 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,992 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,992 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,992 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,992 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,992 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,992 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,992 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,992 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,993 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,993 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,993 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,993 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,993 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,993 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,994 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,994 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,994 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,994 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,994 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,994 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:02,999 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 01:14:03,004 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 01:14:03,005 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 [2022-02-10 01:14:03,005 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 01:14:03,008 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 106 places, 110 transitions, 238 flow [2022-02-10 01:14:03,062 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1646 states, 1637 states have (on average 2.4312767257177765) internal successors, (3980), 1645 states have internal predecessors, (3980), 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) [2022-02-10 01:14:28,160 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 773466 transitions and produced 356372 states. [2022-02-10 01:14:33,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 356372 states, 284274 states have (on average 1.290860226401289) internal successors, (366958), 356371 states have internal predecessors, (366958), 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) [2022-02-10 01:14:33,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-10 01:14:33,826 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:14:33,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 01:14:33,862 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 01:14:33,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:14:33,876 INFO L85 PathProgramCache]: Analyzing trace with hash -85741780, now seen corresponding path program 1 times [2022-02-10 01:14:33,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:14:33,881 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114542092] [2022-02-10 01:14:33,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:14:33,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:14:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:14:33,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:14:33,978 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:14:33,979 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114542092] [2022-02-10 01:14:33,979 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114542092] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:14:33,979 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:14:33,979 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-10 01:14:33,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262183764] [2022-02-10 01:14:33,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:14:33,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-10 01:14:33,980 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:14:33,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-10 01:14:33,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 01:14:39,958 INFO L87 Difference]: Start difference. First operand has 356372 states, 284274 states have (on average 1.290860226401289) internal successors, (366958), 356371 states have internal predecessors, (366958), 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 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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) [2022-02-10 01:14:41,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:14:41,575 INFO L93 Difference]: Finished difference Result 50223 states and 51218 transitions. [2022-02-10 01:14:41,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 01:14:41,576 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-02-10 01:14:41,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:14:41,747 INFO L225 Difference]: With dead ends: 50223 [2022-02-10 01:14:41,747 INFO L226 Difference]: Without dead ends: 17003 [2022-02-10 01:14:41,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-10 01:14:41,748 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-10 01:14:41,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-10 01:14:41,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17003 states. [2022-02-10 01:14:41,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17003 to 752. [2022-02-10 01:14:41,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 731 states have (on average 1.1655266757865936) internal successors, (852), 751 states have internal predecessors, (852), 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) [2022-02-10 01:14:41,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 852 transitions. [2022-02-10 01:14:41,917 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 852 transitions. Word has length 51 [2022-02-10 01:14:41,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:14:41,918 INFO L470 AbstractCegarLoop]: Abstraction has 752 states and 852 transitions. [2022-02-10 01:14:41,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 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) [2022-02-10 01:14:41,918 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 852 transitions. [2022-02-10 01:14:41,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-02-10 01:14:41,919 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:14:41,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 01:14:41,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-10 01:14:41,919 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 01:14:41,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:14:41,920 INFO L85 PathProgramCache]: Analyzing trace with hash -153172566, now seen corresponding path program 1 times [2022-02-10 01:14:41,920 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:14:41,920 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655743416] [2022-02-10 01:14:41,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:14:41,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:14:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 01:14:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 01:14:42,913 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 01:14:42,913 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655743416] [2022-02-10 01:14:42,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655743416] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-10 01:14:42,913 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-10 01:14:42,914 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-10 01:14:42,914 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575893186] [2022-02-10 01:14:42,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-10 01:14:42,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-10 01:14:42,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 01:14:42,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-10 01:14:42,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 01:14:42,915 INFO L87 Difference]: Start difference. First operand 752 states and 852 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-02-10 01:14:42,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-10 01:14:42,989 INFO L93 Difference]: Finished difference Result 600 states and 677 transitions. [2022-02-10 01:14:42,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-10 01:14:42,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-02-10 01:14:42,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-10 01:14:42,991 INFO L225 Difference]: With dead ends: 600 [2022-02-10 01:14:42,991 INFO L226 Difference]: Without dead ends: 600 [2022-02-10 01:14:42,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-10 01:14:42,992 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 84 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-10 01:14:42,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 153 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-10 01:14:42,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-02-10 01:14:43,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 591. [2022-02-10 01:14:43,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 575 states have (on average 1.1617391304347826) internal successors, (668), 590 states have internal predecessors, (668), 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) [2022-02-10 01:14:43,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 668 transitions. [2022-02-10 01:14:43,019 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 668 transitions. Word has length 51 [2022-02-10 01:14:43,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-10 01:14:43,020 INFO L470 AbstractCegarLoop]: Abstraction has 591 states and 668 transitions. [2022-02-10 01:14:43,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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) [2022-02-10 01:14:43,020 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 668 transitions. [2022-02-10 01:14:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-02-10 01:14:43,021 INFO L506 BasicCegarLoop]: Found error trace [2022-02-10 01:14:43,021 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-10 01:14:43,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 01:14:43,022 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-02-10 01:14:43,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 01:14:43,022 INFO L85 PathProgramCache]: Analyzing trace with hash -571975030, now seen corresponding path program 1 times [2022-02-10 01:14:43,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 01:14:43,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995679152] [2022-02-10 01:14:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 01:14:43,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 01:14:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 01:14:43,153 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-10 01:14:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-10 01:14:43,267 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-10 01:14:43,267 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-10 01:14:43,267 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 2 remaining) [2022-02-10 01:14:43,268 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-02-10 01:14:43,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-10 01:14:43,268 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-10 01:14:43,268 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-02-10 01:14:43,268 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-02-10 01:14:43,287 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,287 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,287 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,287 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,288 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,288 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,288 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,288 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,288 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,294 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,295 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,295 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,295 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,295 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,295 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,295 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,295 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,295 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,295 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,296 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,296 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,296 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,296 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,296 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,296 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,296 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,296 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,296 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,297 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,297 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,297 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,298 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,298 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,298 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,298 WARN L322 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,299 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,299 WARN L322 ript$VariableManager]: TermVariabe |threadThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,299 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,299 WARN L322 ript$VariableManager]: TermVariabe threadThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,300 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,300 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,300 WARN L322 ript$VariableManager]: TermVariabe |threadThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,300 WARN L322 ript$VariableManager]: TermVariabe threadThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-10 01:14:43,305 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-10 01:14:43,313 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 01:14:43,314 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 [2022-02-10 01:14:43,314 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-02-10 01:14:43,315 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 113 places, 116 transitions, 262 flow [2022-02-10 01:14:43,507 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9366 states, 9349 states have (on average 3.134238956038079) internal successors, (29302), 9365 states have internal predecessors, (29302), 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)