/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/stateful01-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 17:43:38,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 17:43:38,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 17:43:38,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 17:43:38,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 17:43:38,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 17:43:38,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 17:43:38,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 17:43:38,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 17:43:38,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 17:43:38,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 17:43:38,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 17:43:38,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 17:43:38,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 17:43:38,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 17:43:38,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 17:43:38,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 17:43:38,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 17:43:38,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 17:43:38,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 17:43:38,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 17:43:38,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 17:43:38,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 17:43:38,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 17:43:38,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 17:43:38,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 17:43:38,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 17:43:38,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 17:43:38,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 17:43:38,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 17:43:38,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 17:43:38,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 17:43:38,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 17:43:38,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 17:43:38,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 17:43:38,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 17:43:38,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 17:43:38,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 17:43:38,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 17:43:38,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 17:43:38,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 17:43:38,209 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-VariableLbe.epf [2023-01-27 17:43:38,246 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 17:43:38,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 17:43:38,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 17:43:38,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 17:43:38,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 17:43:38,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 17:43:38,249 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 17:43:38,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 17:43:38,250 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 17:43:38,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 17:43:38,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 17:43:38,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 17:43:38,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 17:43:38,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 17:43:38,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 17:43:38,251 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 17:43:38,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 17:43:38,251 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 17:43:38,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 17:43:38,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 17:43:38,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 17:43:38,252 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 17:43:38,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 17:43:38,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 17:43:38,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 17:43:38,252 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 17:43:38,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 17:43:38,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 17:43:38,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 17:43:38,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 17:43:38,253 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 17:43:38,253 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 17:43:38,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 17:43:38,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 17:43:38,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 17:43:38,509 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 17:43:38,509 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 17:43:38,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/stateful01-1.i [2023-01-27 17:43:39,645 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 17:43:39,857 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 17:43:39,858 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/stateful01-1.i [2023-01-27 17:43:39,868 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c2bd0704/6cbabd7e785a44b1b7c9c134e14c5f89/FLAG888779f2a [2023-01-27 17:43:39,880 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c2bd0704/6cbabd7e785a44b1b7c9c134e14c5f89 [2023-01-27 17:43:39,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 17:43:39,885 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 17:43:39,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 17:43:39,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 17:43:39,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 17:43:39,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 05:43:39" (1/1) ... [2023-01-27 17:43:39,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e6400c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:39, skipping insertion in model container [2023-01-27 17:43:39,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 05:43:39" (1/1) ... [2023-01-27 17:43:39,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 17:43:39,940 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 17:43:40,172 WARN L247 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] [2023-01-27 17:43:40,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 17:43:40,188 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 17:43:40,238 WARN L247 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] [2023-01-27 17:43:40,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 17:43:40,286 INFO L208 MainTranslator]: Completed translation [2023-01-27 17:43:40,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40 WrapperNode [2023-01-27 17:43:40,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 17:43:40,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 17:43:40,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 17:43:40,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 17:43:40,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (1/1) ... [2023-01-27 17:43:40,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (1/1) ... [2023-01-27 17:43:40,324 INFO L138 Inliner]: procedures = 168, calls = 34, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63 [2023-01-27 17:43:40,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 17:43:40,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 17:43:40,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 17:43:40,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 17:43:40,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (1/1) ... [2023-01-27 17:43:40,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (1/1) ... [2023-01-27 17:43:40,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (1/1) ... [2023-01-27 17:43:40,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (1/1) ... [2023-01-27 17:43:40,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (1/1) ... [2023-01-27 17:43:40,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (1/1) ... [2023-01-27 17:43:40,343 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (1/1) ... [2023-01-27 17:43:40,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (1/1) ... [2023-01-27 17:43:40,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 17:43:40,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 17:43:40,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 17:43:40,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 17:43:40,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (1/1) ... [2023-01-27 17:43:40,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 17:43:40,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 17:43:40,378 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) [2023-01-27 17:43:40,386 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 [2023-01-27 17:43:40,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 17:43:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-27 17:43:40,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-27 17:43:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-27 17:43:40,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-27 17:43:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 17:43:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 17:43:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 17:43:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 17:43:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 17:43:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 17:43:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 17:43:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 17:43:40,422 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 17:43:40,589 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 17:43:40,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 17:43:40,764 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 17:43:40,770 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 17:43:40,770 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 17:43:40,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 05:43:40 BoogieIcfgContainer [2023-01-27 17:43:40,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 17:43:40,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 17:43:40,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 17:43:40,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 17:43:40,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 05:43:39" (1/3) ... [2023-01-27 17:43:40,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc2967c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 05:43:40, skipping insertion in model container [2023-01-27 17:43:40,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 05:43:40" (2/3) ... [2023-01-27 17:43:40,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc2967c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 05:43:40, skipping insertion in model container [2023-01-27 17:43:40,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 05:43:40" (3/3) ... [2023-01-27 17:43:40,780 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2023-01-27 17:43:40,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 17:43:40,798 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 17:43:40,798 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 17:43:40,880 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-27 17:43:40,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 89 transitions, 194 flow [2023-01-27 17:43:40,975 INFO L130 PetriNetUnfolder]: 1/87 cut-off events. [2023-01-27 17:43:40,975 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 17:43:40,985 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. [2023-01-27 17:43:40,985 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 89 transitions, 194 flow [2023-01-27 17:43:40,991 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 77 transitions, 166 flow [2023-01-27 17:43:40,996 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 17:43:41,015 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 166 flow [2023-01-27 17:43:41,017 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 166 flow [2023-01-27 17:43:41,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 166 flow [2023-01-27 17:43:41,054 INFO L130 PetriNetUnfolder]: 0/77 cut-off events. [2023-01-27 17:43:41,054 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 17:43:41,054 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. [2023-01-27 17:43:41,055 INFO L119 LiptonReduction]: Number of co-enabled transitions 732 [2023-01-27 17:43:43,671 INFO L134 LiptonReduction]: Checked pairs total: 2433 [2023-01-27 17:43:43,672 INFO L136 LiptonReduction]: Total number of compositions: 54 [2023-01-27 17:43:43,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 17:43:43,690 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=PETRI_NET, 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;@510f1c3d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 17:43:43,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-27 17:43:43,696 INFO L130 PetriNetUnfolder]: 0/22 cut-off events. [2023-01-27 17:43:43,697 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-27 17:43:43,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 17:43:43,697 INFO L208 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] [2023-01-27 17:43:43,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 17:43:43,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 17:43:43,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1212926621, now seen corresponding path program 1 times [2023-01-27 17:43:43,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 17:43:43,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905008453] [2023-01-27 17:43:43,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 17:43:43,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 17:43:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 17:43:43,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 17:43:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 17:43:44,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 17:43:44,012 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 17:43:44,016 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-27 17:43:44,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-27 17:43:44,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-01-27 17:43:44,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 17:43:44,019 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 17:43:44,029 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 17:43:44,030 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 17:43:44,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 05:43:44 BasicIcfg [2023-01-27 17:43:44,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 17:43:44,081 INFO L158 Benchmark]: Toolchain (without parser) took 4195.01ms. Allocated memory is still 486.5MB. Free memory was 437.0MB in the beginning and 229.4MB in the end (delta: 207.6MB). Peak memory consumption was 209.1MB. Max. memory is 16.0GB. [2023-01-27 17:43:44,081 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 354.4MB. Free memory is still 303.6MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 17:43:44,081 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.35ms. Allocated memory is still 486.5MB. Free memory was 437.0MB in the beginning and 417.5MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 17:43:44,082 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.09ms. Allocated memory is still 486.5MB. Free memory was 417.5MB in the beginning and 415.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 17:43:44,082 INFO L158 Benchmark]: Boogie Preprocessor took 20.54ms. Allocated memory is still 486.5MB. Free memory was 415.5MB in the beginning and 413.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 17:43:44,082 INFO L158 Benchmark]: RCFGBuilder took 426.90ms. Allocated memory is still 486.5MB. Free memory was 413.9MB in the beginning and 399.9MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 17:43:44,083 INFO L158 Benchmark]: TraceAbstraction took 3304.08ms. Allocated memory is still 486.5MB. Free memory was 399.2MB in the beginning and 229.4MB in the end (delta: 169.8MB). Peak memory consumption was 171.3MB. Max. memory is 16.0GB. [2023-01-27 17:43:44,084 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 354.4MB. Free memory is still 303.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 400.35ms. Allocated memory is still 486.5MB. Free memory was 437.0MB in the beginning and 417.5MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 37.09ms. Allocated memory is still 486.5MB. Free memory was 417.5MB in the beginning and 415.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 20.54ms. Allocated memory is still 486.5MB. Free memory was 415.5MB in the beginning and 413.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 426.90ms. Allocated memory is still 486.5MB. Free memory was 413.9MB in the beginning and 399.9MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3304.08ms. Allocated memory is still 486.5MB. Free memory was 399.2MB in the beginning and 229.4MB in the end (delta: 169.8MB). Peak memory consumption was 171.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 84 PlacesBefore, 30 PlacesAfterwards, 77 TransitionsBefore, 23 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 54 TotalNumberOfCompositions, 2433 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1335, independent: 1170, independent conditional: 0, independent unconditional: 1170, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 373, independent: 348, independent conditional: 0, independent unconditional: 348, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1335, independent: 822, independent conditional: 0, independent unconditional: 822, dependent: 140, dependent conditional: 0, dependent unconditional: 140, unknown: 373, unknown conditional: 0, unknown unconditional: 373] , Statistics on independence cache: Total cache size (in pairs): 72, Positive cache size: 61, Positive conditional cache size: 0, Positive unconditional cache size: 61, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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++ VAL [\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}] [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: 3.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, 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! [2023-01-27 17:43:44,104 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...