/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_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 18:55:32,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 18:55:32,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 18:55:32,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 18:55:32,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-13 18:55:32,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-13 18:55:32,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-13 18:55:32,553 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 [2021-07-13 18:55:32,600 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 18:55:32,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 18:55:32,601 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 18:55:32,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 18:55:32,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 18:55:32,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 18:55:32,604 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 18:55:32,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 18:55:32,604 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 18:55:32,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 18:55:32,605 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 18:55:32,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 18:55:32,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 18:55:32,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 18:55:32,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 18:55:32,605 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 18:55:32,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 18:55:32,605 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 18:55:32,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 18:55:32,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 18:55:32,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 18:55:32,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 18:55:32,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 18:55:32,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:55:32,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 18:55:32,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 18:55:32,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 18:55:32,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 18:55:32,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 18:55:32,607 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 18:55:32,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 18:55:32,607 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 18:55:32,868 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 18:55:32,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 18:55:32,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 18:55:32,890 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-13 18:55:32,890 INFO L275 PluginConnector]: CDTParser initialized [2021-07-13 18:55:32,891 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2021-07-13 18:55:32,944 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91a8907c/b272e0bb88e04dd092c52523fc41b80d/FLAGb3c033593 [2021-07-13 18:55:33,393 INFO L306 CDTParser]: Found 1 translation units. [2021-07-13 18:55:33,394 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2021-07-13 18:55:33,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91a8907c/b272e0bb88e04dd092c52523fc41b80d/FLAGb3c033593 [2021-07-13 18:55:33,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91a8907c/b272e0bb88e04dd092c52523fc41b80d [2021-07-13 18:55:33,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 18:55:33,421 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-13 18:55:33,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:33,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-13 18:55:33,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-13 18:55:33,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:33" (1/1) ... [2021-07-13 18:55:33,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2199c588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:33, skipping insertion in model container [2021-07-13 18:55:33,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 06:55:33" (1/1) ... [2021-07-13 18:55:33,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-13 18:55:33,460 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-13 18:55:33,866 WARN L224 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_2-join.i[76153,76166] [2021-07-13 18:55:33,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:33,885 INFO L203 MainTranslator]: Completed pre-run [2021-07-13 18:55:33,937 WARN L224 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_2-join.i[76153,76166] [2021-07-13 18:55:33,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-13 18:55:34,032 INFO L208 MainTranslator]: Completed translation [2021-07-13 18:55:34,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34 WrapperNode [2021-07-13 18:55:34,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-13 18:55:34,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:34,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 18:55:34,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 18:55:34,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34" (1/1) ... [2021-07-13 18:55:34,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34" (1/1) ... [2021-07-13 18:55:34,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 18:55:34,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 18:55:34,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 18:55:34,102 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 18:55:34,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34" (1/1) ... [2021-07-13 18:55:34,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34" (1/1) ... [2021-07-13 18:55:34,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34" (1/1) ... [2021-07-13 18:55:34,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34" (1/1) ... [2021-07-13 18:55:34,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34" (1/1) ... [2021-07-13 18:55:34,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34" (1/1) ... [2021-07-13 18:55:34,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34" (1/1) ... [2021-07-13 18:55:34,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 18:55:34,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 18:55:34,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 18:55:34,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 18:55:34,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 18:55:34,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-13 18:55:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-13 18:55:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-13 18:55:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-13 18:55:34,203 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-07-13 18:55:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-07-13 18:55:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 18:55:34,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 18:55:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-13 18:55:34,205 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-13 18:55:34,205 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-13 18:55:34,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-13 18:55:34,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-13 18:55:34,207 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 18:55:34,776 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 18:55:34,776 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-07-13 18:55:34,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:34 BoogieIcfgContainer [2021-07-13 18:55:34,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 18:55:34,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 18:55:34,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 18:55:34,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 18:55:34,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 06:55:33" (1/3) ... [2021-07-13 18:55:34,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db0fd09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:34, skipping insertion in model container [2021-07-13 18:55:34,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 06:55:34" (2/3) ... [2021-07-13 18:55:34,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db0fd09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 06:55:34, skipping insertion in model container [2021-07-13 18:55:34,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 06:55:34" (3/3) ... [2021-07-13 18:55:34,785 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2021-07-13 18:55:34,788 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 18:55:34,789 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 18:55:34,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-07-13 18:55:34,789 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 18:55:34,812 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,812 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,812 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,812 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,813 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,813 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,813 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,814 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,815 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,815 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,816 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,816 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,818 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,818 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,818 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,818 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,818 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-13 18:55:34,832 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-07-13 18:55:34,851 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-13 18:55:34,869 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 18:55:34,869 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 18:55:34,869 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 18:55:34,869 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 18:55:34,869 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 18:55:34,869 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 18:55:34,869 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 18:55:34,869 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 18:55:34,879 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 90 transitions, 188 flow [2021-07-13 18:55:34,905 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 216 states, 210 states have (on average 1.6333333333333333) internal successors, (343), 215 states have internal predecessors, (343), 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) [2021-07-13 18:55:34,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 210 states have (on average 1.6333333333333333) internal successors, (343), 215 states have internal predecessors, (343), 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) [2021-07-13 18:55:34,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-07-13 18:55:34,912 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:34,912 INFO L508 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] [2021-07-13 18:55:34,913 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:34,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:34,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1156883515, now seen corresponding path program 1 times [2021-07-13 18:55:34,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:34,922 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874607028] [2021-07-13 18:55:34,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:35,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:35,231 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:35,231 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874607028] [2021-07-13 18:55:35,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874607028] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:35,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:35,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 18:55:35,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526867397] [2021-07-13 18:55:35,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 18:55:35,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:35,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 18:55:35,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-13 18:55:35,246 INFO L87 Difference]: Start difference. First operand has 216 states, 210 states have (on average 1.6333333333333333) internal successors, (343), 215 states have internal predecessors, (343), 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) [2021-07-13 18:55:35,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:35,336 INFO L93 Difference]: Finished difference Result 212 states and 337 transitions. [2021-07-13 18:55:35,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 18:55:35,338 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 [2021-07-13 18:55:35,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:35,347 INFO L225 Difference]: With dead ends: 212 [2021-07-13 18:55:35,347 INFO L226 Difference]: Without dead ends: 163 [2021-07-13 18:55:35,348 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-07-13 18:55:35,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-07-13 18:55:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2021-07-13 18:55:35,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 160 states have (on average 1.58125) internal successors, (253), 162 states have internal predecessors, (253), 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) [2021-07-13 18:55:35,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 253 transitions. [2021-07-13 18:55:35,387 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 253 transitions. Word has length 27 [2021-07-13 18:55:35,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:35,387 INFO L482 AbstractCegarLoop]: Abstraction has 163 states and 253 transitions. [2021-07-13 18:55:35,387 INFO L483 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) [2021-07-13 18:55:35,387 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 253 transitions. [2021-07-13 18:55:35,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-07-13 18:55:35,388 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:35,388 INFO L508 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] [2021-07-13 18:55:35,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-13 18:55:35,388 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:35,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:35,389 INFO L82 PathProgramCache]: Analyzing trace with hash 145435750, now seen corresponding path program 1 times [2021-07-13 18:55:35,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:35,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407860638] [2021-07-13 18:55:35,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:35,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:35,481 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:35,482 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407860638] [2021-07-13 18:55:35,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407860638] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:35,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:35,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-13 18:55:35,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244622740] [2021-07-13 18:55:35,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-13 18:55:35,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:35,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-13 18:55:35,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-13 18:55:35,485 INFO L87 Difference]: Start difference. First operand 163 states and 253 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) [2021-07-13 18:55:35,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:35,541 INFO L93 Difference]: Finished difference Result 161 states and 251 transitions. [2021-07-13 18:55:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 18:55:35,544 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 [2021-07-13 18:55:35,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:35,545 INFO L225 Difference]: With dead ends: 161 [2021-07-13 18:55:35,545 INFO L226 Difference]: Without dead ends: 155 [2021-07-13 18:55:35,546 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 27.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-13 18:55:35,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-07-13 18:55:35,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-07-13 18:55:35,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.6013071895424837) internal successors, (245), 154 states have internal predecessors, (245), 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) [2021-07-13 18:55:35,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 245 transitions. [2021-07-13 18:55:35,552 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 245 transitions. Word has length 35 [2021-07-13 18:55:35,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:35,552 INFO L482 AbstractCegarLoop]: Abstraction has 155 states and 245 transitions. [2021-07-13 18:55:35,552 INFO L483 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) [2021-07-13 18:55:35,552 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 245 transitions. [2021-07-13 18:55:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-07-13 18:55:35,553 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:35,553 INFO L508 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] [2021-07-13 18:55:35,553 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-13 18:55:35,553 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:35,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:35,554 INFO L82 PathProgramCache]: Analyzing trace with hash -106359310, now seen corresponding path program 1 times [2021-07-13 18:55:35,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:35,554 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68517518] [2021-07-13 18:55:35,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 18:55:35,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 18:55:35,600 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 18:55:35,600 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68517518] [2021-07-13 18:55:35,600 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68517518] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-13 18:55:35,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-13 18:55:35,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-13 18:55:35,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332731394] [2021-07-13 18:55:35,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-13 18:55:35,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 18:55:35,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-13 18:55:35,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 18:55:35,619 INFO L87 Difference]: Start difference. First operand 155 states and 245 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:35,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-13 18:55:35,636 INFO L93 Difference]: Finished difference Result 195 states and 308 transitions. [2021-07-13 18:55:35,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-13 18:55:35,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-07-13 18:55:35,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-13 18:55:35,639 INFO L225 Difference]: With dead ends: 195 [2021-07-13 18:55:35,639 INFO L226 Difference]: Without dead ends: 195 [2021-07-13 18:55:35,639 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-13 18:55:35,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-07-13 18:55:35,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 155. [2021-07-13 18:55:35,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.5947712418300655) internal successors, (244), 154 states have internal predecessors, (244), 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) [2021-07-13 18:55:35,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 244 transitions. [2021-07-13 18:55:35,650 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 244 transitions. Word has length 37 [2021-07-13 18:55:35,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-13 18:55:35,651 INFO L482 AbstractCegarLoop]: Abstraction has 155 states and 244 transitions. [2021-07-13 18:55:35,651 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 18:55:35,651 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 244 transitions. [2021-07-13 18:55:35,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-13 18:55:35,652 INFO L500 BasicCegarLoop]: Found error trace [2021-07-13 18:55:35,652 INFO L508 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] [2021-07-13 18:55:35,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-13 18:55:35,652 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-13 18:55:35,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 18:55:35,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1131091410, now seen corresponding path program 1 times [2021-07-13 18:55:35,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 18:55:35,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349965915] [2021-07-13 18:55:35,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 18:55:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 18:55:35,673 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 18:55:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-13 18:55:35,686 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-13 18:55:35,719 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-13 18:55:35,719 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-13 18:55:35,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-13 18:55:35,722 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-13 18:55:35,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 06:55:35 BasicIcfg [2021-07-13 18:55:35,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-13 18:55:35,759 INFO L168 Benchmark]: Toolchain (without parser) took 2337.55 ms. Allocated memory was 219.2 MB in the beginning and 316.7 MB in the end (delta: 97.5 MB). Free memory was 181.4 MB in the beginning and 273.5 MB in the end (delta: -92.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:35,759 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 219.2 MB. Free memory is still 201.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:55:35,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.51 ms. Allocated memory is still 219.2 MB. Free memory was 181.2 MB in the beginning and 158.5 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:35,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.93 ms. Allocated memory is still 219.2 MB. Free memory was 158.5 MB in the beginning and 155.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:35,760 INFO L168 Benchmark]: Boogie Preprocessor took 43.52 ms. Allocated memory is still 219.2 MB. Free memory was 155.4 MB in the beginning and 152.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:35,761 INFO L168 Benchmark]: RCFGBuilder took 631.85 ms. Allocated memory is still 219.2 MB. Free memory was 152.8 MB in the beginning and 167.0 MB in the end (delta: -14.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. [2021-07-13 18:55:35,761 INFO L168 Benchmark]: TraceAbstraction took 977.46 ms. Allocated memory was 219.2 MB in the beginning and 316.7 MB in the end (delta: 97.5 MB). Free memory was 166.5 MB in the beginning and 273.5 MB in the end (delta: -107.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-13 18:55:35,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 219.2 MB. Free memory is still 201.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 611.51 ms. Allocated memory is still 219.2 MB. Free memory was 181.2 MB in the beginning and 158.5 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 66.93 ms. Allocated memory is still 219.2 MB. Free memory was 158.5 MB in the beginning and 155.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.52 ms. Allocated memory is still 219.2 MB. Free memory was 155.4 MB in the beginning and 152.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 631.85 ms. Allocated memory is still 219.2 MB. Free memory was 152.8 MB in the beginning and 167.0 MB in the end (delta: -14.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 977.46 ms. Allocated memory was 219.2 MB in the beginning and 316.7 MB in the end (delta: 97.5 MB). Free memory was 166.5 MB in the beginning and 273.5 MB in the end (delta: -107.1 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; VAL [t1={7:0}] [L1697] 0 pthread_mutex_t mutex; VAL [mutex={3:0}, t1={7:0}] [L1698] 0 int pdev; VAL [mutex={3:0}, pdev=0, t1={7:0}] [L1709] 0 pdev = 1 VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1695] COND FALSE 0 !(!expression) VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1711] COND TRUE 0 __VERIFIER_nondet_int() VAL [mutex={3:0}, pdev=1, t1={7:0}] [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={3:0}, pdev=1, t1={7:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=2, t1={7:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={7:0}] [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={3:0}, pdev=6, t1={7:0}] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 95 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 853.1ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 8.3ms, AutomataDifference: 195.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 36.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 225 SDtfs, 192 SDslu, 331 SDs, 0 SdLazy, 59 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 59.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 46.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 40 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.0ms SsaConstructionTime, 75.2ms SatisfiabilityAnalysisTime, 248.9ms InterpolantComputationTime, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 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! Received shutdown request...