/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:17:11,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:17:11,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:17:12,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:17:12,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:17:12,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:17:12,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:17:12,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:17:12,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:17:12,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:17:12,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:17:12,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:17:12,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:17:12,021 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:17:12,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:17:12,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:17:12,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:17:12,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:17:12,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:17:12,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:17:12,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:17:12,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:17:12,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:17:12,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:17:12,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:17:12,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:17:12,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:17:12,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:17:12,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:17:12,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:17:12,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:17:12,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:17:12,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:17:12,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:17:12,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:17:12,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:17:12,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:17:12,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:17:12,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:17:12,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:17:12,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:17:12,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:17:12,124 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:17:12,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:17:12,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:17:12,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:17:12,128 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:17:12,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:17:12,129 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:17:12,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:17:12,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:17:12,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:17:12,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:17:12,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:17:12,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:17:12,131 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:17:12,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:17:12,131 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:17:12,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:17:12,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:17:12,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:17:12,132 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:17:12,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:17:12,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:17:12,133 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:17:12,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:17:12,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:17:12,133 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:17:12,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:17:12,133 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:17:12,134 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:17:12,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:17:12,134 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:17:12,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:17:12,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:17:12,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:17:12,548 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:17:12,551 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:17:12,552 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-11-09 17:17:12,645 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84b3689c1/14450cf2481841a59821aa83119eae98/FLAGa8195dd30 [2020-11-09 17:17:13,456 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:17:13,456 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2-join.i [2020-11-09 17:17:13,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84b3689c1/14450cf2481841a59821aa83119eae98/FLAGa8195dd30 [2020-11-09 17:17:13,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84b3689c1/14450cf2481841a59821aa83119eae98 [2020-11-09 17:17:13,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:17:13,658 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:17:13,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:17:13,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:17:13,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:17:13,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:17:13" (1/1) ... [2020-11-09 17:17:13,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa90b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:13, skipping insertion in model container [2020-11-09 17:17:13,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:17:13" (1/1) ... [2020-11-09 17:17:13,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:17:13,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:17:14,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:17:14,656 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:17:14,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:17:15,217 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:17:15,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15 WrapperNode [2020-11-09 17:17:15,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:17:15,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:17:15,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:17:15,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:17:15,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15" (1/1) ... [2020-11-09 17:17:15,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15" (1/1) ... [2020-11-09 17:17:15,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:17:15,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:17:15,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:17:15,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:17:15,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15" (1/1) ... [2020-11-09 17:17:15,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15" (1/1) ... [2020-11-09 17:17:15,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15" (1/1) ... [2020-11-09 17:17:15,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15" (1/1) ... [2020-11-09 17:17:15,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15" (1/1) ... [2020-11-09 17:17:15,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15" (1/1) ... [2020-11-09 17:17:15,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15" (1/1) ... [2020-11-09 17:17:15,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:17:15,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:17:15,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:17:15,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:17:15,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15" (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 [2020-11-09 17:17:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:17:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:17:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:17:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 17:17:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-09 17:17:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-09 17:17:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:17:15,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:17:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:17:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-11-09 17:17:15,449 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-11-09 17:17:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:17:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:17:15,451 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:17:16,101 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:17:16,101 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-09 17:17:16,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:17:16 BoogieIcfgContainer [2020-11-09 17:17:16,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:17:16,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:17:16,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:17:16,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:17:16,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:17:13" (1/3) ... [2020-11-09 17:17:16,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c84090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:17:16, skipping insertion in model container [2020-11-09 17:17:16,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:17:15" (2/3) ... [2020-11-09 17:17:16,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c84090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:17:16, skipping insertion in model container [2020-11-09 17:17:16,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:17:16" (3/3) ... [2020-11-09 17:17:16,112 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_2-join.i [2020-11-09 17:17:16,128 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:17:16,128 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:17:16,132 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-09 17:17:16,133 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:17:16,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,161 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,161 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,161 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,163 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,163 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,163 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,163 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,163 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,164 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,164 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,164 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,165 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,165 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,165 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,165 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,167 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,168 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,168 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:17:16,177 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-09 17:17:16,189 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 17:17:16,213 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:17:16,213 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:17:16,213 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:17:16,213 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:17:16,213 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:17:16,213 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:17:16,214 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:17:16,214 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:17:16,227 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:17:16,228 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 99 transitions, 206 flow [2020-11-09 17:17:16,231 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 99 transitions, 206 flow [2020-11-09 17:17:16,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 99 transitions, 206 flow [2020-11-09 17:17:16,278 INFO L129 PetriNetUnfolder]: 7/110 cut-off events. [2020-11-09 17:17:16,278 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-11-09 17:17:16,281 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 7/110 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 190 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 66. Up to 3 conditions per place. [2020-11-09 17:17:16,283 INFO L116 LiptonReduction]: Number of co-enabled transitions 238 [2020-11-09 17:17:19,895 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-11-09 17:17:20,014 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-11-09 17:17:20,241 WARN L194 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-11-09 17:17:20,651 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-09 17:17:20,780 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-09 17:17:20,914 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-09 17:17:21,049 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-09 17:17:21,225 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-11-09 17:17:21,900 WARN L194 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2020-11-09 17:17:22,192 WARN L194 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-11-09 17:17:22,366 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-11-09 17:17:22,616 WARN L194 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-11-09 17:17:22,841 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2020-11-09 17:17:23,069 WARN L194 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-11-09 17:17:23,335 WARN L194 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-11-09 17:17:23,688 WARN L194 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-11-09 17:17:24,004 WARN L194 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2020-11-09 17:17:24,008 INFO L131 LiptonReduction]: Checked pairs total: 287 [2020-11-09 17:17:24,008 INFO L133 LiptonReduction]: Total number of compositions: 124 [2020-11-09 17:17:24,017 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2020-11-09 17:17:24,028 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 21 states. [2020-11-09 17:17:24,030 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-11-09 17:17:24,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-11-09 17:17:24,035 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:24,036 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-11-09 17:17:24,037 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:17:24,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:24,046 INFO L82 PathProgramCache]: Analyzing trace with hash 432, now seen corresponding path program 1 times [2020-11-09 17:17:24,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:24,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460297993] [2020-11-09 17:17:24,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:24,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:24,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460297993] [2020-11-09 17:17:24,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:17:24,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-11-09 17:17:24,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [597210106] [2020-11-09 17:17:24,429 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:24,431 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:24,438 INFO L252 McrAutomatonBuilder]: Finished intersection with 2 states and 1 transitions. [2020-11-09 17:17:24,438 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:24,442 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:24,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 17:17:24,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:24,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 17:17:24,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:17:24,461 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-11-09 17:17:24,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:24,469 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2020-11-09 17:17:24,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 17:17:24,470 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-11-09 17:17:24,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:24,477 INFO L225 Difference]: With dead ends: 18 [2020-11-09 17:17:24,477 INFO L226 Difference]: Without dead ends: 8 [2020-11-09 17:17:24,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 17:17:24,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-09 17:17:24,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-09 17:17:24,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-09 17:17:24,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2020-11-09 17:17:24,507 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 1 [2020-11-09 17:17:24,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:24,508 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2020-11-09 17:17:24,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 17:17:24,508 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-09 17:17:24,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-09 17:17:24,508 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:24,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-09 17:17:24,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:17:24,509 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:17:24,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:24,510 INFO L82 PathProgramCache]: Analyzing trace with hash 13206062, now seen corresponding path program 1 times [2020-11-09 17:17:24,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:24,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174025960] [2020-11-09 17:17:24,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:17:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:17:24,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174025960] [2020-11-09 17:17:24,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:17:24,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:17:24,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1873857537] [2020-11-09 17:17:24,722 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:17:24,722 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:17:24,724 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-11-09 17:17:24,724 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:17:24,724 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:17:24,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:17:24,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:17:24,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:17:24,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:17:24,727 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2020-11-09 17:17:24,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:17:24,741 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-11-09 17:17:24,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:17:24,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-09 17:17:24,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:17:24,743 INFO L225 Difference]: With dead ends: 8 [2020-11-09 17:17:24,743 INFO L226 Difference]: Without dead ends: 6 [2020-11-09 17:17:24,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:17:24,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-11-09 17:17:24,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-11-09 17:17:24,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-09 17:17:24,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2020-11-09 17:17:24,746 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2020-11-09 17:17:24,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:17:24,746 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2020-11-09 17:17:24,746 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:17:24,746 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-11-09 17:17:24,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-09 17:17:24,747 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:17:24,747 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-09 17:17:24,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:17:24,747 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:17:24,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:17:24,748 INFO L82 PathProgramCache]: Analyzing trace with hash 409393719, now seen corresponding path program 1 times [2020-11-09 17:17:24,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:17:24,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986473136] [2020-11-09 17:17:24,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:17:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:17:24,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:17:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-09 17:17:24,829 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-09 17:17:24,871 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-09 17:17:24,871 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-09 17:17:24,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:17:24,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:17:24 BasicIcfg [2020-11-09 17:17:24,907 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:17:24,909 INFO L168 Benchmark]: Toolchain (without parser) took 11254.59 ms. Allocated memory was 165.7 MB in the beginning and 267.4 MB in the end (delta: 101.7 MB). Free memory was 138.3 MB in the beginning and 218.1 MB in the end (delta: -79.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 8.0 GB. [2020-11-09 17:17:24,911 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 165.7 MB. Free memory is still 139.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:17:24,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1557.95 ms. Allocated memory was 165.7 MB in the beginning and 221.2 MB in the end (delta: 55.6 MB). Free memory was 137.6 MB in the beginning and 181.2 MB in the end (delta: -43.5 MB). Peak memory consumption was 87.3 MB. Max. memory is 8.0 GB. [2020-11-09 17:17:24,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.96 ms. Allocated memory is still 221.2 MB. Free memory was 181.2 MB in the beginning and 178.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:17:24,917 INFO L168 Benchmark]: Boogie Preprocessor took 78.69 ms. Allocated memory is still 221.2 MB. Free memory was 178.0 MB in the beginning and 175.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:17:24,924 INFO L168 Benchmark]: RCFGBuilder took 725.89 ms. Allocated memory is still 221.2 MB. Free memory was 175.4 MB in the beginning and 131.9 MB in the end (delta: 43.5 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:17:24,925 INFO L168 Benchmark]: TraceAbstraction took 8801.84 ms. Allocated memory was 221.2 MB in the beginning and 267.4 MB in the end (delta: 46.1 MB). Free memory was 131.3 MB in the beginning and 218.1 MB in the end (delta: -86.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:17:24,936 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 165.7 MB. Free memory is still 139.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 1557.95 ms. Allocated memory was 165.7 MB in the beginning and 221.2 MB in the end (delta: 55.6 MB). Free memory was 137.6 MB in the beginning and 181.2 MB in the end (delta: -43.5 MB). Peak memory consumption was 87.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 71.96 ms. Allocated memory is still 221.2 MB. Free memory was 181.2 MB in the beginning and 178.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 78.69 ms. Allocated memory is still 221.2 MB. Free memory was 178.0 MB in the beginning and 175.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 725.89 ms. Allocated memory is still 221.2 MB. Free memory was 175.4 MB in the beginning and 131.9 MB in the end (delta: 43.5 MB). Peak memory consumption was 44.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8801.84 ms. Allocated memory was 221.2 MB in the beginning and 267.4 MB in the end (delta: 46.1 MB). Free memory was 131.3 MB in the beginning and 218.1 MB in the end (delta: -86.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 126 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 7.7s, 95 PlacesBefore, 17 PlacesAfterwards, 99 TransitionsBefore, 15 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 7 FixpointIterations, 83 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 5 ConcurrentYvCompositions, 6 ChoiceCompositions, 124 TotalNumberOfCompositions, 287 MoverChecksTotal - CounterExampleResult [Line: 1693]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1709] 0 pdev = 1 [L1695] COND FALSE 0 !(!expression) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={7:0}, pdev=1, t1={5:0}] [L1714] 0 pdev = 2 VAL [arg={0:0}, mutex={7:0}, pdev=2, t1={5:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1695] COND TRUE 0 !expression [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_2-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={7:0}, pdev=6, t1={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.8s, HoareTripleCheckerStatistics: 17 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...