/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/svcomp/ldv-races/race-1_2b-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-231806ee773fbd0554de777ff4074f5592c67ff4-231806e [2021-10-13 22:30:24,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 22:30:24,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 22:30:24,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 22:30:24,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 22:30:24,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 22:30:24,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 22:30:24,490 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 [2021-10-13 22:30:24,514 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 22:30:24,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 22:30:24,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 22:30:24,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 22:30:24,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 22:30:24,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 22:30:24,516 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 22:30:24,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 22:30:24,516 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 22:30:24,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 22:30:24,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 22:30:24,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 22:30:24,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 22:30:24,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 22:30:24,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 22:30:24,517 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 22:30:24,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 22:30:24,517 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 22:30:24,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 22:30:24,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 22:30:24,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 22:30:24,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-13 22:30:24,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 22:30:24,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:30:24,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 22:30:24,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 22:30:24,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 22:30:24,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 22:30:24,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 22:30:24,518 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-13 22:30:24,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 22:30:24,518 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 22:30:24,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 22:30:24,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 22:30:24,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 22:30:24,718 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 22:30:24,718 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 22:30:24,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2021-10-13 22:30:24,779 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59b1cc10f/ab698edab3434b4abe5a97548f4e0770/FLAG463c09053 [2021-10-13 22:30:25,249 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 22:30:25,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2021-10-13 22:30:25,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59b1cc10f/ab698edab3434b4abe5a97548f4e0770/FLAG463c09053 [2021-10-13 22:30:25,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59b1cc10f/ab698edab3434b4abe5a97548f4e0770 [2021-10-13 22:30:25,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 22:30:25,284 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 22:30:25,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 22:30:25,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 22:30:25,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 22:30:25,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45ff350d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25, skipping insertion in model container [2021-10-13 22:30:25,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 22:30:25,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 22:30:25,756 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2b-join.i[76069,76082] [2021-10-13 22:30:25,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:30:25,785 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 22:30:25,817 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2b-join.i[76069,76082] [2021-10-13 22:30:25,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:30:25,884 INFO L208 MainTranslator]: Completed translation [2021-10-13 22:30:25,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25 WrapperNode [2021-10-13 22:30:25,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 22:30:25,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 22:30:25,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 22:30:25,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 22:30:25,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 22:30:25,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 22:30:25,924 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 22:30:25,924 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 22:30:25,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,938 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 22:30:25,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 22:30:25,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 22:30:25,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 22:30:25,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,967 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:30:25,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 22:30:25,984 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) [2021-10-13 22:30:25,990 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 [2021-10-13 22:30:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 22:30:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 22:30:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-13 22:30:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 22:30:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 22:30:26,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 22:30:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 22:30:26,010 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-13 22:30:26,010 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-13 22:30:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 22:30:26,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 22:30:26,012 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 22:30:26,334 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 22:30:26,334 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-13 22:30:26,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:30:26 BoogieIcfgContainer [2021-10-13 22:30:26,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 22:30:26,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 22:30:26,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 22:30:26,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 22:30:26,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:30:25" (1/3) ... [2021-10-13 22:30:26,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f72494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:30:26, skipping insertion in model container [2021-10-13 22:30:26,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25" (2/3) ... [2021-10-13 22:30:26,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f72494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:30:26, skipping insertion in model container [2021-10-13 22:30:26,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:30:26" (3/3) ... [2021-10-13 22:30:26,343 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2021-10-13 22:30:26,347 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 22:30:26,347 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 22:30:26,347 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-13 22:30:26,347 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 22:30:26,366 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,367 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,367 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,367 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,367 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,367 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,367 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,367 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,367 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,371 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,371 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,372 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,372 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,384 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-13 22:30:26,411 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:30:26,415 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 22:30:26,415 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-13 22:30:26,422 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 96 transitions, 200 flow [2021-10-13 22:30:26,439 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 256 states, 250 states have (on average 1.704) internal successors, (426), 255 states have internal predecessors, (426), 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) [2021-10-13 22:30:26,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 250 states have (on average 1.704) internal successors, (426), 255 states have internal predecessors, (426), 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) [2021-10-13 22:30:26,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 22:30:26,445 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:26,446 INFO L512 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] [2021-10-13 22:30:26,446 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:30:26,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:26,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1233539732, now seen corresponding path program 1 times [2021-10-13 22:30:26,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:26,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963916195] [2021-10-13 22:30:26,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:26,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:26,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:26,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:26,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963916195] [2021-10-13 22:30:26,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963916195] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:26,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:26,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 22:30:26,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013731776] [2021-10-13 22:30:26,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:30:26,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:26,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:30:26,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:30:26,769 INFO L87 Difference]: Start difference. First operand has 256 states, 250 states have (on average 1.704) internal successors, (426), 255 states have internal predecessors, (426), 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 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2021-10-13 22:30:26,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:26,830 INFO L93 Difference]: Finished difference Result 244 states and 397 transitions. [2021-10-13 22:30:26,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 22:30:26,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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 27 [2021-10-13 22:30:26,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:26,837 INFO L225 Difference]: With dead ends: 244 [2021-10-13 22:30:26,837 INFO L226 Difference]: Without dead ends: 195 [2021-10-13 22:30:26,838 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 27.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 22:30:26,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-10-13 22:30:26,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2021-10-13 22:30:26,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 192 states have (on average 1.6302083333333333) internal successors, (313), 194 states have internal predecessors, (313), 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) [2021-10-13 22:30:26,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 313 transitions. [2021-10-13 22:30:26,870 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 313 transitions. Word has length 27 [2021-10-13 22:30:26,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:26,870 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 313 transitions. [2021-10-13 22:30:26,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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) [2021-10-13 22:30:26,870 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 313 transitions. [2021-10-13 22:30:26,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 22:30:26,871 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:26,871 INFO L512 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] [2021-10-13 22:30:26,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 22:30:26,871 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:30:26,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:26,872 INFO L82 PathProgramCache]: Analyzing trace with hash -173468473, now seen corresponding path program 1 times [2021-10-13 22:30:26,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:26,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943038822] [2021-10-13 22:30:26,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:26,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:26,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:26,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:26,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943038822] [2021-10-13 22:30:26,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943038822] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:26,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:26,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 22:30:26,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872105116] [2021-10-13 22:30:26,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:30:26,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:26,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:30:26,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:30:26,962 INFO L87 Difference]: Start difference. First operand 195 states and 313 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-13 22:30:27,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:27,011 INFO L93 Difference]: Finished difference Result 193 states and 311 transitions. [2021-10-13 22:30:27,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 22:30:27,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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 35 [2021-10-13 22:30:27,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:27,013 INFO L225 Difference]: With dead ends: 193 [2021-10-13 22:30:27,013 INFO L226 Difference]: Without dead ends: 187 [2021-10-13 22:30:27,014 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 22:30:27,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-13 22:30:27,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-10-13 22:30:27,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 185 states have (on average 1.6486486486486487) internal successors, (305), 186 states have internal predecessors, (305), 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) [2021-10-13 22:30:27,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 305 transitions. [2021-10-13 22:30:27,023 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 305 transitions. Word has length 35 [2021-10-13 22:30:27,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:27,023 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 305 transitions. [2021-10-13 22:30:27,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 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) [2021-10-13 22:30:27,024 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 305 transitions. [2021-10-13 22:30:27,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-13 22:30:27,024 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:27,024 INFO L512 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] [2021-10-13 22:30:27,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 22:30:27,025 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:30:27,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:27,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1860400533, now seen corresponding path program 1 times [2021-10-13 22:30:27,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:27,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741606913] [2021-10-13 22:30:27,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:27,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:27,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:27,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:27,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741606913] [2021-10-13 22:30:27,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741606913] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:27,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:27,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 22:30:27,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179756086] [2021-10-13 22:30:27,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:30:27,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:27,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:30:27,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:30:27,115 INFO L87 Difference]: Start difference. First operand 187 states and 305 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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) [2021-10-13 22:30:27,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:27,156 INFO L93 Difference]: Finished difference Result 288 states and 467 transitions. [2021-10-13 22:30:27,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 22:30:27,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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) Word has length 41 [2021-10-13 22:30:27,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:27,158 INFO L225 Difference]: With dead ends: 288 [2021-10-13 22:30:27,158 INFO L226 Difference]: Without dead ends: 288 [2021-10-13 22:30:27,158 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 23.9ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 22:30:27,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-10-13 22:30:27,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 195. [2021-10-13 22:30:27,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 193 states have (on average 1.6424870466321244) internal successors, (317), 194 states have internal predecessors, (317), 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) [2021-10-13 22:30:27,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 317 transitions. [2021-10-13 22:30:27,166 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 317 transitions. Word has length 41 [2021-10-13 22:30:27,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:27,166 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 317 transitions. [2021-10-13 22:30:27,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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) [2021-10-13 22:30:27,166 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 317 transitions. [2021-10-13 22:30:27,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-13 22:30:27,167 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:27,167 INFO L512 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] [2021-10-13 22:30:27,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 22:30:27,167 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-10-13 22:30:27,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:27,171 INFO L82 PathProgramCache]: Analyzing trace with hash -560900385, now seen corresponding path program 1 times [2021-10-13 22:30:27,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:27,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994432955] [2021-10-13 22:30:27,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:27,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:27,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 22:30:27,202 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 22:30:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 22:30:27,259 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 22:30:27,259 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 22:30:27,260 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:30:27,262 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:30:27,264 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:30:27,264 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:30:27,264 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 22:30:27,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 22:30:27,269 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 22:30:27,269 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 22:30:27,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:30:27 BasicIcfg [2021-10-13 22:30:27,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 22:30:27,315 INFO L168 Benchmark]: Toolchain (without parser) took 2029.96 ms. Allocated memory was 194.0 MB in the beginning and 235.9 MB in the end (delta: 41.9 MB). Free memory was 140.5 MB in the beginning and 178.0 MB in the end (delta: -37.5 MB). Peak memory consumption was 4.6 MB. Max. memory is 8.0 GB. [2021-10-13 22:30:27,315 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 194.0 MB. Free memory is still 160.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 22:30:27,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.21 ms. Allocated memory was 194.0 MB in the beginning and 235.9 MB in the end (delta: 41.9 MB). Free memory was 140.2 MB in the beginning and 171.5 MB in the end (delta: -31.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2021-10-13 22:30:27,315 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.54 ms. Allocated memory is still 235.9 MB. Free memory was 171.5 MB in the beginning and 168.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:30:27,316 INFO L168 Benchmark]: Boogie Preprocessor took 21.34 ms. Allocated memory is still 235.9 MB. Free memory was 168.4 MB in the beginning and 166.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:30:27,316 INFO L168 Benchmark]: RCFGBuilder took 389.76 ms. Allocated memory is still 235.9 MB. Free memory was 166.4 MB in the beginning and 149.1 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-10-13 22:30:27,316 INFO L168 Benchmark]: TraceAbstraction took 977.07 ms. Allocated memory is still 235.9 MB. Free memory was 148.5 MB in the beginning and 178.0 MB in the end (delta: -29.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 22:30:27,318 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 194.0 MB. Free memory is still 160.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 599.21 ms. Allocated memory was 194.0 MB in the beginning and 235.9 MB in the end (delta: 41.9 MB). Free memory was 140.2 MB in the beginning and 171.5 MB in the end (delta: -31.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 38.54 ms. Allocated memory is still 235.9 MB. Free memory was 171.5 MB in the beginning and 168.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.34 ms. Allocated memory is still 235.9 MB. Free memory was 168.4 MB in the beginning and 166.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 389.76 ms. Allocated memory is still 235.9 MB. Free memory was 166.4 MB in the beginning and 149.1 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 977.07 ms. Allocated memory is still 235.9 MB. Free memory was 148.5 MB in the beginning and 178.0 MB in the end (delta: -29.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1693]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1694] 0 pthread_t t1; VAL [t1={7:0}] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={3:0}, t1={7:0}] [L1696] 0 int pdev; VAL [mutex={3:0}, pdev=0, t1={7:0}] [L1705] 0 pdev = 1 VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1693] COND FALSE 0 !(!expression) VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1707] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, t1={7:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=2, t1={7:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={7:0}] [L1693] COND TRUE 0 !expression VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={7:0}] [L1693] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={7:0}] - UnprovableResult [Line: 1693]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1693]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1708]: 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, 100 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 857.1ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 7.6ms, AutomataDifference: 180.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 228 SDtfs, 270 SDslu, 483 SDs, 0 SdLazy, 81 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 72.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 39.4ms AutomataMinimizationTime, 3 MinimizatonAttempts, 93 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.7ms SsaConstructionTime, 77.3ms SatisfiabilityAnalysisTime, 252.2ms InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 133 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2021-10-13 22:30:27,349 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...