/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-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 06:15:38,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 06:15:38,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 06:15:38,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 06:15:38,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 06:15:38,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 06:15:38,124 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 06:15:38,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 06:15:38,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 06:15:38,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 06:15:38,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 06:15:38,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 06:15:38,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 06:15:38,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 06:15:38,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 06:15:38,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 06:15:38,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 06:15:38,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 06:15:38,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 06:15:38,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 06:15:38,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 06:15:38,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 06:15:38,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 06:15:38,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 06:15:38,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 06:15:38,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 06:15:38,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 06:15:38,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 06:15:38,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 06:15:38,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 06:15:38,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 06:15:38,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 06:15:38,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 06:15:38,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 06:15:38,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 06:15:38,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 06:15:38,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 06:15:38,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 06:15:38,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 06:15:38,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 06:15:38,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 06:15:38,166 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 06:15:38,196 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 06:15:38,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 06:15:38,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 06:15:38,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 06:15:38,199 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 06:15:38,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 06:15:38,199 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 06:15:38,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 06:15:38,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 06:15:38,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 06:15:38,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 06:15:38,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 06:15:38,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 06:15:38,201 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 06:15:38,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 06:15:38,201 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 06:15:38,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 06:15:38,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 06:15:38,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 06:15:38,202 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 06:15:38,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 06:15:38,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:15:38,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 06:15:38,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 06:15:38,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 06:15:38,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 06:15:38,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 06:15:38,203 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 06:15:38,203 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 06:15:38,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 06:15:38,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 06:15:38,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 06:15:38,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 06:15:38,624 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 06:15:38,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2022-12-06 06:15:39,775 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 06:15:40,114 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 06:15:40,129 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2022-12-06 06:15:40,150 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/161f9b96c/0e3b435250da485c84244b0947fb9cc9/FLAG8219a4278 [2022-12-06 06:15:40,185 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/161f9b96c/0e3b435250da485c84244b0947fb9cc9 [2022-12-06 06:15:40,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 06:15:40,190 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 06:15:40,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 06:15:40,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 06:15:40,194 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 06:15:40,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@196fd035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40, skipping insertion in model container [2022-12-06 06:15:40,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 06:15:40,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 06:15:40,586 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2022-12-06 06:15:40,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:15:40,605 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 06:15:40,662 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i[30826,30839] [2022-12-06 06:15:40,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 06:15:40,706 INFO L208 MainTranslator]: Completed translation [2022-12-06 06:15:40,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40 WrapperNode [2022-12-06 06:15:40,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 06:15:40,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 06:15:40,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 06:15:40,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 06:15:40,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,769 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2022-12-06 06:15:40,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 06:15:40,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 06:15:40,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 06:15:40,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 06:15:40,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,794 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 06:15:40,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 06:15:40,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 06:15:40,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 06:15:40,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (1/1) ... [2022-12-06 06:15:40,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 06:15:40,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 06:15:40,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 06:15:40,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 06:15:40,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 06:15:40,886 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 06:15:40,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 06:15:40,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 06:15:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 06:15:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 06:15:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 06:15:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 06:15:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 06:15:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 06:15:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 06:15:40,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 06:15:40,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 06:15:40,890 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 06:15:41,080 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 06:15:41,083 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 06:15:41,282 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 06:15:41,288 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 06:15:41,289 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 06:15:41,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:15:41 BoogieIcfgContainer [2022-12-06 06:15:41,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 06:15:41,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 06:15:41,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 06:15:41,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 06:15:41,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 06:15:40" (1/3) ... [2022-12-06 06:15:41,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bd8f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:15:41, skipping insertion in model container [2022-12-06 06:15:41,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:15:40" (2/3) ... [2022-12-06 06:15:41,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bd8f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 06:15:41, skipping insertion in model container [2022-12-06 06:15:41,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:15:41" (3/3) ... [2022-12-06 06:15:41,299 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2022-12-06 06:15:41,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 06:15:41,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 06:15:41,317 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 06:15:41,387 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 06:15:41,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 89 transitions, 194 flow [2022-12-06 06:15:41,466 INFO L130 PetriNetUnfolder]: 1/87 cut-off events. [2022-12-06 06:15:41,467 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 06:15:41,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 87 events. 1/87 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-06 06:15:41,471 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 89 transitions, 194 flow [2022-12-06 06:15:41,476 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 77 transitions, 166 flow [2022-12-06 06:15:41,478 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 06:15:41,494 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 166 flow [2022-12-06 06:15:41,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 166 flow [2022-12-06 06:15:41,524 INFO L130 PetriNetUnfolder]: 0/77 cut-off events. [2022-12-06 06:15:41,525 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 06:15:41,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 77 events. 0/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-06 06:15:41,527 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 166 flow [2022-12-06 06:15:41,528 INFO L188 LiptonReduction]: Number of co-enabled transitions 732 [2022-12-06 06:15:45,585 INFO L203 LiptonReduction]: Total number of compositions: 54 [2022-12-06 06:15:45,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 06:15:45,617 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@738b7f79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 06:15:45,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 06:15:45,626 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2022-12-06 06:15:45,627 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 06:15:45,631 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 06:15:45,631 INFO L213 CegarLoopForPetriNet]: 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] [2022-12-06 06:15:45,632 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 06:15:45,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 06:15:45,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1235596550, now seen corresponding path program 1 times [2022-12-06 06:15:45,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 06:15:45,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964030067] [2022-12-06 06:15:45,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 06:15:45,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 06:15:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 06:15:45,843 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 06:15:45,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 06:15:45,944 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 06:15:45,945 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 06:15:45,946 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 06:15:45,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 06:15:45,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-12-06 06:15:45,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 06:15:45,949 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 06:15:45,953 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 06:15:45,953 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 06:15:46,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 06:15:46 BasicIcfg [2022-12-06 06:15:46,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 06:15:46,016 INFO L158 Benchmark]: Toolchain (without parser) took 5826.59ms. Allocated memory was 181.4MB in the beginning and 223.3MB in the end (delta: 41.9MB). Free memory was 156.2MB in the beginning and 171.8MB in the end (delta: -15.6MB). Peak memory consumption was 27.4MB. Max. memory is 8.0GB. [2022-12-06 06:15:46,017 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 06:15:46,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 515.61ms. Allocated memory is still 181.4MB. Free memory was 156.2MB in the beginning and 136.8MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-06 06:15:46,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.90ms. Allocated memory is still 181.4MB. Free memory was 136.3MB in the beginning and 134.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 06:15:46,018 INFO L158 Benchmark]: Boogie Preprocessor took 26.72ms. Allocated memory is still 181.4MB. Free memory was 134.7MB in the beginning and 133.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 06:15:46,019 INFO L158 Benchmark]: RCFGBuilder took 492.89ms. Allocated memory is still 181.4MB. Free memory was 133.1MB in the beginning and 118.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 06:15:46,019 INFO L158 Benchmark]: TraceAbstraction took 4722.66ms. Allocated memory was 181.4MB in the beginning and 223.3MB in the end (delta: 41.9MB). Free memory was 117.4MB in the beginning and 171.8MB in the end (delta: -54.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 06:15:46,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 515.61ms. Allocated memory is still 181.4MB. Free memory was 156.2MB in the beginning and 136.8MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.90ms. Allocated memory is still 181.4MB. Free memory was 136.3MB in the beginning and 134.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.72ms. Allocated memory is still 181.4MB. Free memory was 134.7MB in the beginning and 133.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 492.89ms. Allocated memory is still 181.4MB. Free memory was 133.1MB in the beginning and 118.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 4722.66ms. Allocated memory was 181.4MB in the beginning and 223.3MB in the end (delta: 41.9MB). Free memory was 117.4MB in the beginning and 171.8MB in the end (delta: -54.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.1s, 84 PlacesBefore, 30 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 35 TrivialYvCompositions, 19 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 546, independent unconditional: 0, dependent: 57, dependent conditional: 57, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 603, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 57, dependent conditional: 0, dependent unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 464, independent: 435, independent conditional: 0, independent unconditional: 435, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 464, independent: 415, independent conditional: 0, independent unconditional: 415, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 49, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 29, dependent conditional: 0, dependent unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 112, independent: 53, independent conditional: 0, independent unconditional: 53, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 603, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 464, unknown conditional: 0, unknown unconditional: 464] , Statistics on independence cache: Total cache size (in pairs): 595, Positive cache size: 566, Positive conditional cache size: 0, Positive unconditional cache size: 566, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 727]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t1, 0, thread1, 0)=-2, t1={6:0}, t2={5:0}] [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={4:0}, pthread_create(&t2, 0, thread2, 0)=-1, t1={6:0}, t2={5:0}] [L707] 2 data1+=5 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=10, ma={3:0}, mb={4:0}] [L710] 2 data2-=6 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=15, data2=4, ma={3:0}, mb={4:0}] [L712] 2 return 0; [L697] 1 data1++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=4, ma={3:0}, mb={4:0}] [L700] 1 data2++ [L702] 1 return 0; [L723] 0 \read(t1) VAL [\read(t1)=-2, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\read(t1)=-2, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] 0 \read(t2) VAL [\read(t2)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\read(t2)=-1, \result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] [L725] COND TRUE 0 data1==16 && data2==5 [L727] 0 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={4:0}, t1={6:0}, t2={5:0}] - UnprovableResult [Line: 722]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 119 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, InterpolantAutomatonStates: 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-12-06 06:15:46,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...