/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:47:01,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:47:01,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:47:01,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:47:01,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:47:01,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:47:01,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:47:01,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:47:01,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:47:01,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:47:01,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:47:01,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:47:01,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:47:01,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:47:01,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:47:01,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:47:01,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:47:01,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:47:01,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:47:01,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:47:01,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:47:01,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:47:01,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:47:01,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:47:01,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:47:01,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:47:01,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:47:01,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:47:01,433 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:47:01,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-05 20:47:01,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:47:01,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:47:01,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:47:01,443 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2022-12-05 20:47:01,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:47:01,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:47:01,469 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:47:01,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:47:01,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:47:01,471 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:47:01,471 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:47:01,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:47:01,471 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:47:01,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:47:01,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:47:01,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:47:01,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:47:01,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:47:01,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:47:01,472 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:47:01,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:47:01,472 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:47:01,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:47:01,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:47:01,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:47:01,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:47:01,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:47:01,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:47:01,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:47:01,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:47:01,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:47:01,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:47:01,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:47:01,474 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:47:01,474 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:47:01,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:47:01,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:47:01,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:47:01,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:47:01,726 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:47:01,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-05 20:47:02,693 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:47:02,951 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:47:02,951 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-05 20:47:02,961 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897763dba/78d50d843a6c4567aae8654d3e4983c4/FLAG7d20ad9e5 [2022-12-05 20:47:02,976 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/897763dba/78d50d843a6c4567aae8654d3e4983c4 [2022-12-05 20:47:02,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:47:02,981 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:47:02,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:47:02,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:47:02,984 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:47:02,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:47:02" (1/1) ... [2022-12-05 20:47:02,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aff4176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:02, skipping insertion in model container [2022-12-05 20:47:02,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:47:02" (1/1) ... [2022-12-05 20:47:02,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:47:03,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:47:03,131 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-05 20:47:03,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:47:03,271 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:47:03,281 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2022-12-05 20:47:03,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:47:03,339 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:47:03,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03 WrapperNode [2022-12-05 20:47:03,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:47:03,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:47:03,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:47:03,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:47:03,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (1/1) ... [2022-12-05 20:47:03,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (1/1) ... [2022-12-05 20:47:03,387 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-12-05 20:47:03,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:47:03,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:47:03,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:47:03,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:47:03,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (1/1) ... [2022-12-05 20:47:03,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (1/1) ... [2022-12-05 20:47:03,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (1/1) ... [2022-12-05 20:47:03,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (1/1) ... [2022-12-05 20:47:03,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (1/1) ... [2022-12-05 20:47:03,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (1/1) ... [2022-12-05 20:47:03,412 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (1/1) ... [2022-12-05 20:47:03,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (1/1) ... [2022-12-05 20:47:03,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:47:03,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:47:03,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:47:03,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:47:03,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (1/1) ... [2022-12-05 20:47:03,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:47:03,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:47:03,443 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) [2022-12-05 20:47:03,450 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 [2022-12-05 20:47:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:47:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:47:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:47:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:47:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-05 20:47:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-05 20:47:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:47:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:47:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:47:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:47:03,475 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:47:03,565 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:47:03,566 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:47:03,662 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:47:03,666 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:47:03,666 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:47:03,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:47:03 BoogieIcfgContainer [2022-12-05 20:47:03,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:47:03,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:47:03,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:47:03,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:47:03,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:47:02" (1/3) ... [2022-12-05 20:47:03,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe38b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:47:03, skipping insertion in model container [2022-12-05 20:47:03,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:03" (2/3) ... [2022-12-05 20:47:03,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe38b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:47:03, skipping insertion in model container [2022-12-05 20:47:03,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:47:03" (3/3) ... [2022-12-05 20:47:03,674 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2022-12-05 20:47:03,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:47:03,698 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:47:03,698 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:47:03,744 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-05 20:47:03,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 125 flow [2022-12-05 20:47:03,821 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2022-12-05 20:47:03,821 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:47:03,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-12-05 20:47:03,825 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 125 flow [2022-12-05 20:47:03,829 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2022-12-05 20:47:03,830 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:47:03,857 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 105 flow [2022-12-05 20:47:03,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 105 flow [2022-12-05 20:47:03,887 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2022-12-05 20:47:03,887 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:47:03,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-05 20:47:03,889 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 105 flow [2022-12-05 20:47:03,889 INFO L188 LiptonReduction]: Number of co-enabled transitions 240 [2022-12-05 20:47:06,137 INFO L203 LiptonReduction]: Total number of compositions: 43 [2022-12-05 20:47:06,155 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:47:06,160 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;@576136de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:47:06,160 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-05 20:47:06,163 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-05 20:47:06,163 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 20:47:06,163 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:06,164 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-05 20:47:06,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-05 20:47:06,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:06,169 INFO L85 PathProgramCache]: Analyzing trace with hash 196294938, now seen corresponding path program 1 times [2022-12-05 20:47:06,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:06,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843014792] [2022-12-05 20:47:06,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:06,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:06,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:47:06,288 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 20:47:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:47:06,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 20:47:06,340 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 20:47:06,341 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-05 20:47:06,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-05 20:47:06,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:47:06,343 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-05 20:47:06,347 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:47:06,347 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:47:06,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:47:06 BasicIcfg [2022-12-05 20:47:06,362 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:47:06,364 INFO L158 Benchmark]: Toolchain (without parser) took 3382.36ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 165.7MB in the beginning and 128.2MB in the end (delta: 37.5MB). Peak memory consumption was 77.3MB. Max. memory is 8.0GB. [2022-12-05 20:47:06,364 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 166.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:47:06,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.30ms. Allocated memory is still 190.8MB. Free memory was 165.1MB in the beginning and 146.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-05 20:47:06,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.62ms. Allocated memory is still 190.8MB. Free memory was 146.3MB in the beginning and 144.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:47:06,368 INFO L158 Benchmark]: Boogie Preprocessor took 30.84ms. Allocated memory is still 190.8MB. Free memory was 144.6MB in the beginning and 143.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-05 20:47:06,368 INFO L158 Benchmark]: RCFGBuilder took 248.79ms. Allocated memory is still 190.8MB. Free memory was 143.1MB in the beginning and 130.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-05 20:47:06,369 INFO L158 Benchmark]: TraceAbstraction took 2692.99ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 130.0MB in the beginning and 128.2MB in the end (delta: 1.8MB). Peak memory consumption was 41.7MB. Max. memory is 8.0GB. [2022-12-05 20:47:06,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 166.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 359.30ms. Allocated memory is still 190.8MB. Free memory was 165.1MB in the beginning and 146.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.62ms. Allocated memory is still 190.8MB. Free memory was 146.3MB in the beginning and 144.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.84ms. Allocated memory is still 190.8MB. Free memory was 144.6MB in the beginning and 143.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 248.79ms. Allocated memory is still 190.8MB. Free memory was 143.1MB in the beginning and 130.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2692.99ms. Allocated memory was 190.8MB in the beginning and 229.6MB in the end (delta: 38.8MB). Free memory was 130.0MB in the beginning and 128.2MB in the end (delta: 1.8MB). Peak memory consumption was 41.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 55 PlacesBefore, 15 PlacesAfterwards, 51 TransitionsBefore, 11 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 27 TrivialYvCompositions, 15 ConcurrentYvCompositions, 0 ChoiceCompositions, 43 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 217, independent: 178, independent conditional: 178, independent unconditional: 0, dependent: 39, dependent conditional: 39, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 217, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 217, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 217, independent: 178, independent conditional: 0, independent unconditional: 178, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 171, independent: 145, independent conditional: 0, independent unconditional: 145, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 171, independent: 132, independent conditional: 0, independent unconditional: 132, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 90, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 217, independent: 33, independent conditional: 0, independent unconditional: 33, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 171, unknown conditional: 0, unknown unconditional: 171] , Statistics on independence cache: Total cache size (in pairs): 252, Positive cache size: 226, Positive conditional cache size: 0, Positive unconditional cache size: 226, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, cond=0, D={4:0}, g=0] - UnprovableResult [Line: 694]: 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 3 procedures, 72 locations, 2 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: 2.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 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! [2022-12-05 20:47:06,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...