/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 05:23:42,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 05:23:42,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 05:23:42,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 05:23:42,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 05:23:42,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 05:23:42,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 05:23:42,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 05:23:42,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 05:23:42,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 05:23:42,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 05:23:42,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 05:23:42,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 05:23:42,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 05:23:42,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 05:23:42,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 05:23:42,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 05:23:42,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 05:23:42,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 05:23:42,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 05:23:42,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 05:23:42,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 05:23:42,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 05:23:42,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 05:23:42,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 05:23:42,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 05:23:42,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 05:23:42,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 05:23:42,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 05:23:42,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 05:23:42,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 05:23:42,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 05:23:42,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 05:23:42,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 05:23:42,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 05:23:42,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 05:23:42,439 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-PN-SemanticLbe-SemanticLooper.epf [2020-10-16 05:23:42,460 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 05:23:42,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 05:23:42,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 05:23:42,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 05:23:42,462 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 05:23:42,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 05:23:42,462 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 05:23:42,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 05:23:42,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 05:23:42,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 05:23:42,463 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 05:23:42,463 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 05:23:42,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 05:23:42,464 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 05:23:42,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 05:23:42,464 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 05:23:42,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 05:23:42,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 05:23:42,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 05:23:42,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 05:23:42,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 05:23:42,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 05:23:42,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 05:23:42,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 05:23:42,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 05:23:42,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 05:23:42,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 05:23:42,466 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 05:23:42,466 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 05:23:42,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 05:23:42,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 05:23:42,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 05:23:42,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 05:23:42,807 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 05:23:42,807 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-10-16 05:23:42,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba172a9bc/1202bd1e1787489b805c9408339761f8/FLAGd13b62722 [2020-10-16 05:23:43,461 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 05:23:43,462 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_1-join.i [2020-10-16 05:23:43,489 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba172a9bc/1202bd1e1787489b805c9408339761f8/FLAGd13b62722 [2020-10-16 05:23:43,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba172a9bc/1202bd1e1787489b805c9408339761f8 [2020-10-16 05:23:43,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 05:23:43,671 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 05:23:43,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 05:23:43,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 05:23:43,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 05:23:43,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:23:43" (1/1) ... [2020-10-16 05:23:43,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58b5ea03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:43, skipping insertion in model container [2020-10-16 05:23:43,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:23:43" (1/1) ... [2020-10-16 05:23:43,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 05:23:43,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 05:23:44,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:23:44,488 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 05:23:44,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 05:23:45,009 INFO L208 MainTranslator]: Completed translation [2020-10-16 05:23:45,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45 WrapperNode [2020-10-16 05:23:45,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 05:23:45,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 05:23:45,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 05:23:45,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 05:23:45,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45" (1/1) ... [2020-10-16 05:23:45,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45" (1/1) ... [2020-10-16 05:23:45,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 05:23:45,079 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 05:23:45,079 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 05:23:45,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 05:23:45,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45" (1/1) ... [2020-10-16 05:23:45,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45" (1/1) ... [2020-10-16 05:23:45,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45" (1/1) ... [2020-10-16 05:23:45,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45" (1/1) ... [2020-10-16 05:23:45,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45" (1/1) ... [2020-10-16 05:23:45,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45" (1/1) ... [2020-10-16 05:23:45,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45" (1/1) ... [2020-10-16 05:23:45,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 05:23:45,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 05:23:45,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 05:23:45,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 05:23:45,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45" (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 [2020-10-16 05:23:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 05:23:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 05:23:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 05:23:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-16 05:23:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 05:23:45,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 05:23:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 05:23:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-16 05:23:45,190 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-16 05:23:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 05:23:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 05:23:45,192 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 05:23:45,693 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 05:23:45,694 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-16 05:23:45,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:23:45 BoogieIcfgContainer [2020-10-16 05:23:45,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 05:23:45,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 05:23:45,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 05:23:45,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 05:23:45,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:23:43" (1/3) ... [2020-10-16 05:23:45,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62201546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:23:45, skipping insertion in model container [2020-10-16 05:23:45,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:23:45" (2/3) ... [2020-10-16 05:23:45,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62201546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:23:45, skipping insertion in model container [2020-10-16 05:23:45,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:23:45" (3/3) ... [2020-10-16 05:23:45,707 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2020-10-16 05:23:45,719 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 05:23:45,728 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-16 05:23:45,729 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 05:23:45,765 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,766 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,766 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,766 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,767 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,767 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,768 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,768 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,768 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,769 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,772 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,772 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,773 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 05:23:45,797 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 05:23:45,818 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 05:23:45,818 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 05:23:45,818 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 05:23:45,818 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 05:23:45,819 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 05:23:45,819 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 05:23:45,819 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 05:23:45,819 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 05:23:45,833 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 84 transitions, 176 flow [2020-10-16 05:23:45,880 INFO L129 PetriNetUnfolder]: 5/95 cut-off events. [2020-10-16 05:23:45,880 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 05:23:45,884 INFO L80 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 5/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 160 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2020-10-16 05:23:45,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 84 transitions, 176 flow [2020-10-16 05:23:45,891 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 76 transitions, 158 flow [2020-10-16 05:23:45,894 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 05:23:45,896 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 76 transitions, 158 flow [2020-10-16 05:23:45,899 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 76 transitions, 158 flow [2020-10-16 05:23:45,899 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 76 transitions, 158 flow [2020-10-16 05:23:45,927 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-16 05:23:45,927 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 05:23:45,928 INFO L80 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 76 events. 2/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2020-10-16 05:23:45,930 INFO L117 LiptonReduction]: Number of co-enabled transitions 392 [2020-10-16 05:23:47,176 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-10-16 05:23:47,535 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-16 05:23:47,647 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-16 05:23:47,655 INFO L132 LiptonReduction]: Checked pairs total: 355 [2020-10-16 05:23:47,655 INFO L134 LiptonReduction]: Total number of compositions: 82 [2020-10-16 05:23:47,660 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1769 [2020-10-16 05:23:47,665 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2020-10-16 05:23:47,665 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 05:23:47,666 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 05:23:47,667 INFO L255 CegarLoopForPetriNet]: trace histogram [1] [2020-10-16 05:23:47,667 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 05:23:47,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 05:23:47,693 INFO L82 PathProgramCache]: Analyzing trace with hash 328, now seen corresponding path program 1 times [2020-10-16 05:23:47,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 05:23:47,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510829509] [2020-10-16 05:23:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 05:23:47,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 05:23:48,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 05:23:48,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510829509] [2020-10-16 05:23:48,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 05:23:48,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-10-16 05:23:48,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724193104] [2020-10-16 05:23:48,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-16 05:23:48,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 05:23:48,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-16 05:23:48,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-16 05:23:48,047 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 166 [2020-10-16 05:23:48,049 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states. [2020-10-16 05:23:48,049 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 05:23:48,050 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 166 [2020-10-16 05:23:48,051 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 05:23:48,056 INFO L129 PetriNetUnfolder]: 0/5 cut-off events. [2020-10-16 05:23:48,056 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-16 05:23:48,057 INFO L80 FinitePrefix]: Finished finitePrefix Result has 11 conditions, 5 events. 0/5 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 4/9 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-16 05:23:48,058 INFO L132 encePairwiseOnDemand]: 161/166 looper letters, 0 selfloop transitions, 0 changer transitions 5/5 dead transitions. [2020-10-16 05:23:48,058 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 5 transitions, 16 flow [2020-10-16 05:23:48,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-16 05:23:48,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-16 05:23:48,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 293 transitions. [2020-10-16 05:23:48,073 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8825301204819277 [2020-10-16 05:23:48,074 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 293 transitions. [2020-10-16 05:23:48,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 293 transitions. [2020-10-16 05:23:48,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 05:23:48,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 293 transitions. [2020-10-16 05:23:48,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-10-16 05:23:48,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 3 states. [2020-10-16 05:23:48,088 INFO L81 ComplementDD]: Finished complementDD. Result 3 states. [2020-10-16 05:23:48,091 INFO L185 Difference]: Start difference. First operand has 14 places, 10 transitions, 26 flow. Second operand 2 states and 293 transitions. [2020-10-16 05:23:48,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 5 transitions, 16 flow [2020-10-16 05:23:48,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 8 places, 5 transitions, 12 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 05:23:48,095 INFO L241 Difference]: Finished difference. Result has 8 places, 0 transitions, 0 flow [2020-10-16 05:23:48,098 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=166, PETRI_DIFFERENCE_MINUEND_FLOW=12, PETRI_DIFFERENCE_MINUEND_PLACES=7, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=5, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=8, PETRI_TRANSITIONS=0} [2020-10-16 05:23:48,099 INFO L342 CegarLoopForPetriNet]: 14 programPoint places, -6 predicate places. [2020-10-16 05:23:48,099 INFO L481 AbstractCegarLoop]: Abstraction has has 8 places, 0 transitions, 0 flow [2020-10-16 05:23:48,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-16 05:23:48,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 05:23:48,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:23:48 BasicIcfg [2020-10-16 05:23:48,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 05:23:48,105 INFO L168 Benchmark]: Toolchain (without parser) took 4434.64 ms. Allocated memory was 248.0 MB in the beginning and 364.9 MB in the end (delta: 116.9 MB). Free memory was 201.5 MB in the beginning and 192.4 MB in the end (delta: 9.0 MB). Peak memory consumption was 125.9 MB. Max. memory is 14.2 GB. [2020-10-16 05:23:48,106 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 248.0 MB. Free memory is still 224.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:23:48,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1338.79 ms. Allocated memory was 248.0 MB in the beginning and 350.7 MB in the end (delta: 102.8 MB). Free memory was 201.5 MB in the beginning and 317.0 MB in the end (delta: -115.6 MB). Peak memory consumption was 110.1 MB. Max. memory is 14.2 GB. [2020-10-16 05:23:48,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.70 ms. Allocated memory is still 350.7 MB. Free memory was 317.0 MB in the beginning and 313.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.2 GB. [2020-10-16 05:23:48,109 INFO L168 Benchmark]: Boogie Preprocessor took 45.66 ms. Allocated memory is still 350.7 MB. Free memory is still 313.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 05:23:48,109 INFO L168 Benchmark]: RCFGBuilder took 571.85 ms. Allocated memory is still 350.7 MB. Free memory was 313.6 MB in the beginning and 272.9 MB in the end (delta: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 14.2 GB. [2020-10-16 05:23:48,110 INFO L168 Benchmark]: TraceAbstraction took 2406.04 ms. Allocated memory was 350.7 MB in the beginning and 364.9 MB in the end (delta: 14.2 MB). Free memory was 272.9 MB in the beginning and 192.4 MB in the end (delta: 80.5 MB). Peak memory consumption was 94.6 MB. Max. memory is 14.2 GB. [2020-10-16 05:23:48,114 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 248.0 MB. Free memory is still 224.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 1338.79 ms. Allocated memory was 248.0 MB in the beginning and 350.7 MB in the end (delta: 102.8 MB). Free memory was 201.5 MB in the beginning and 317.0 MB in the end (delta: -115.6 MB). Peak memory consumption was 110.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 67.70 ms. Allocated memory is still 350.7 MB. Free memory was 317.0 MB in the beginning and 313.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 45.66 ms. Allocated memory is still 350.7 MB. Free memory is still 313.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 571.85 ms. Allocated memory is still 350.7 MB. Free memory was 313.6 MB in the beginning and 272.9 MB in the end (delta: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2406.04 ms. Allocated memory was 350.7 MB in the beginning and 364.9 MB in the end (delta: 14.2 MB). Free memory was 272.9 MB in the beginning and 192.4 MB in the end (delta: 80.5 MB). Peak memory consumption was 94.6 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 282 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 78 PlacesBefore, 14 PlacesAfterwards, 76 TransitionsBefore, 10 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 6 FixpointIterations, 49 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 2 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 355 MoverChecksTotal - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 correct! Received shutdown request...