/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/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:34:47,698 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:34:47,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:34:47,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:34:47,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:34:47,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:34:47,769 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:34:47,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:34:47,772 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:34:47,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:34:47,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:34:47,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:34:47,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:34:47,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:34:47,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:34:47,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:34:47,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:34:47,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:34:47,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:34:47,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:34:47,787 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:34:47,788 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:34:47,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:34:47,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:34:47,812 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:34:47,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:34:47,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:34:47,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:34:47,819 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 19:34:47,840 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:34:47,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:34:47,841 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:34:47,842 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:34:47,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:34:47,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:34:47,842 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:34:47,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:34:47,843 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:34:47,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:34:47,843 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:34:47,843 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:34:47,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:34:47,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:34:47,844 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:34:47,844 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:34:47,844 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:34:47,844 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:34:47,844 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:34:47,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:34:47,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:34:47,845 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:34:47,845 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:34:47,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:34:47,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:34:47,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:34:47,846 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:34:47,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:34:47,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:34:47,846 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:34:47,846 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:34:47,846 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:34:48,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:34:48,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:34:48,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:34:48,124 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:34:48,124 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:34:48,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-01-27 19:34:49,589 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:34:49,804 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:34:49,805 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-01-27 19:34:49,816 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8458e7ae/ed03a37216464487b25083bc78bcc732/FLAG8c3488ef5 [2023-01-27 19:34:49,829 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8458e7ae/ed03a37216464487b25083bc78bcc732 [2023-01-27 19:34:49,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:34:49,831 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:34:49,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:34:49,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:34:49,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:34:49,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:34:49" (1/1) ... [2023-01-27 19:34:49,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc3dc32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:49, skipping insertion in model container [2023-01-27 19:34:49,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:34:49" (1/1) ... [2023-01-27 19:34:49,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:34:49,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:34:50,008 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-01-27 19:34:50,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:34:50,213 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:34:50,233 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-01-27 19:34:50,300 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:34:50,356 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:34:50,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50 WrapperNode [2023-01-27 19:34:50,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:34:50,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:34:50,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:34:50,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:34:50,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (1/1) ... [2023-01-27 19:34:50,400 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (1/1) ... [2023-01-27 19:34:50,433 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-01-27 19:34:50,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:34:50,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:34:50,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:34:50,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:34:50,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (1/1) ... [2023-01-27 19:34:50,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (1/1) ... [2023-01-27 19:34:50,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (1/1) ... [2023-01-27 19:34:50,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (1/1) ... [2023-01-27 19:34:50,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (1/1) ... [2023-01-27 19:34:50,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (1/1) ... [2023-01-27 19:34:50,476 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (1/1) ... [2023-01-27 19:34:50,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (1/1) ... [2023-01-27 19:34:50,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:34:50,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:34:50,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:34:50,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:34:50,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (1/1) ... [2023-01-27 19:34:50,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:34:50,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:34:50,546 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 19:34:50,595 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 19:34:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:34:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:34:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:34:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:34:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:34:50,632 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:34:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:34:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:34:50,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:34:50,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:34:50,634 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 19:34:50,769 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:34:50,771 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:34:51,026 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:34:51,048 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:34:51,048 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 19:34:51,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:34:51 BoogieIcfgContainer [2023-01-27 19:34:51,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:34:51,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:34:51,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:34:51,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:34:51,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:34:49" (1/3) ... [2023-01-27 19:34:51,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e28d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:34:51, skipping insertion in model container [2023-01-27 19:34:51,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:34:50" (2/3) ... [2023-01-27 19:34:51,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e28d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:34:51, skipping insertion in model container [2023-01-27 19:34:51,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:34:51" (3/3) ... [2023-01-27 19:34:51,055 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-01-27 19:34:51,125 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:34:51,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:34:51,125 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:34:51,233 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 19:34:51,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 151 flow [2023-01-27 19:34:51,388 INFO L130 PetriNetUnfolder]: 2/72 cut-off events. [2023-01-27 19:34:51,389 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:34:51,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-01-27 19:34:51,392 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 73 transitions, 151 flow [2023-01-27 19:34:51,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 62 transitions, 127 flow [2023-01-27 19:34:51,396 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:34:51,413 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 62 transitions, 127 flow [2023-01-27 19:34:51,417 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 62 transitions, 127 flow [2023-01-27 19:34:51,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 127 flow [2023-01-27 19:34:51,473 INFO L130 PetriNetUnfolder]: 1/62 cut-off events. [2023-01-27 19:34:51,474 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:34:51,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 1/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-01-27 19:34:51,475 INFO L119 LiptonReduction]: Number of co-enabled transitions 360 [2023-01-27 19:34:54,072 INFO L134 LiptonReduction]: Checked pairs total: 1016 [2023-01-27 19:34:54,073 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-01-27 19:34:54,086 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:34:54,091 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;@41a38a3c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:34:54,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-27 19:34:54,094 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-01-27 19:34:54,094 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:34:54,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:34:54,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-27 19:34:54,095 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 19:34:54,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:34:54,100 INFO L85 PathProgramCache]: Analyzing trace with hash 235099129, now seen corresponding path program 1 times [2023-01-27 19:34:54,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:34:54,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674736497] [2023-01-27 19:34:54,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:34:54,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:34:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:34:54,216 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:34:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:34:54,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:34:54,298 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:34:54,299 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-27 19:34:54,300 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-27 19:34:54,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:34:54,301 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 19:34:54,306 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:34:54,307 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:34:54,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:34:54 BasicIcfg [2023-01-27 19:34:54,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:34:54,343 INFO L158 Benchmark]: Toolchain (without parser) took 4511.32ms. Allocated memory is still 436.2MB. Free memory was 383.7MB in the beginning and 340.2MB in the end (delta: 43.5MB). Peak memory consumption was 46.6MB. Max. memory is 16.0GB. [2023-01-27 19:34:54,343 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 308.3MB. Free memory is still 255.0MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:34:54,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.58ms. Allocated memory is still 436.2MB. Free memory was 383.7MB in the beginning and 364.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 19:34:54,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.52ms. Allocated memory is still 436.2MB. Free memory was 364.8MB in the beginning and 362.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:34:54,350 INFO L158 Benchmark]: Boogie Preprocessor took 44.23ms. Allocated memory is still 436.2MB. Free memory was 362.7MB in the beginning and 361.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:34:54,351 INFO L158 Benchmark]: RCFGBuilder took 570.40ms. Allocated memory is still 436.2MB. Free memory was 361.3MB in the beginning and 348.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 19:34:54,351 INFO L158 Benchmark]: TraceAbstraction took 3291.02ms. Allocated memory is still 436.2MB. Free memory was 347.7MB in the beginning and 340.2MB in the end (delta: 7.5MB). Peak memory consumption was 8.9MB. Max. memory is 16.0GB. [2023-01-27 19:34:54,352 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 308.3MB. Free memory is still 255.0MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 524.58ms. Allocated memory is still 436.2MB. Free memory was 383.7MB in the beginning and 364.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 75.52ms. Allocated memory is still 436.2MB. Free memory was 364.8MB in the beginning and 362.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 44.23ms. Allocated memory is still 436.2MB. Free memory was 362.7MB in the beginning and 361.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 570.40ms. Allocated memory is still 436.2MB. Free memory was 361.3MB in the beginning and 348.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 3291.02ms. Allocated memory is still 436.2MB. Free memory was 347.7MB in the beginning and 340.2MB in the end (delta: 7.5MB). Peak memory consumption was 8.9MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 65 PlacesBefore, 17 PlacesAfterwards, 62 TransitionsBefore, 14 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 1016 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 449, independent: 327, independent conditional: 0, independent unconditional: 327, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 195, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 449, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 195, unknown conditional: 0, unknown unconditional: 195] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=42] - UnprovableResult [Line: 697]: 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, 84 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: 3.0s, 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=31occurred 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! [2023-01-27 19:34:54,378 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...