/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/13-privatized_18-first-reads_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:01:37,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:01:37,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:01:37,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:01:37,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:01:37,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:01:37,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:01:37,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:01:37,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:01:37,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:01:37,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:01:37,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:01:37,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:01:37,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:01:37,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:01:37,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:01:37,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:01:37,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:01:37,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:01:37,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:01:37,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:01:37,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:01:37,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:01:37,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:01:37,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:01:37,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:01:37,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:01:38,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:01:38,001 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 19:01:38,025 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:01:38,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:01:38,025 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:01:38,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:01:38,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:01:38,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:01:38,026 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:01:38,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:01:38,026 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:01:38,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:01:38,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:01:38,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:01:38,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:01:38,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:01:38,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:01:38,027 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:01:38,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:01:38,027 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:01:38,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:01:38,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:01:38,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:01:38,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:01:38,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:01:38,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:01:38,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:01:38,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:01:38,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:01:38,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:01:38,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:01:38,028 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:01:38,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:01:38,028 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:01:38,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:01:38,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:01:38,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:01:38,387 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:01:38,401 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:01:38,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-01-27 19:01:39,940 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:01:40,308 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:01:40,308 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-01-27 19:01:40,335 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac64210d7/4d641a140d774f1d86f3f27956e98a19/FLAGaac051689 [2023-01-27 19:01:40,348 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac64210d7/4d641a140d774f1d86f3f27956e98a19 [2023-01-27 19:01:40,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:01:40,357 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:01:40,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:01:40,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:01:40,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:01:40,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:40,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783e50e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40, skipping insertion in model container [2023-01-27 19:01:40,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:40,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:01:40,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:01:40,622 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/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2023-01-27 19:01:40,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:01:40,847 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:01:40,872 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/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2023-01-27 19:01:40,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:01:40,949 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:01:40,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40 WrapperNode [2023-01-27 19:01:40,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:01:40,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:01:40,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:01:40,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:01:40,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:40,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:40,989 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-01-27 19:01:40,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:01:40,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:01:40,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:01:40,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:01:40,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:40,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:41,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:41,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:41,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:41,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:41,038 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:41,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:41,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:01:41,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:01:41,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:01:41,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:01:41,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (1/1) ... [2023-01-27 19:01:41,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:01:41,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:01:41,097 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 19:01:41,099 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 19:01:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 19:01:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:01:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:01:41,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:01:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:01:41,133 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:01:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:01:41,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:01:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:01:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:01:41,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:01:41,148 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 19:01:41,266 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:01:41,268 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:01:41,473 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:01:41,477 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:01:41,477 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 19:01:41,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:01:41 BoogieIcfgContainer [2023-01-27 19:01:41,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:01:41,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:01:41,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:01:41,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:01:41,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:01:40" (1/3) ... [2023-01-27 19:01:41,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea1a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:01:41, skipping insertion in model container [2023-01-27 19:01:41,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:01:40" (2/3) ... [2023-01-27 19:01:41,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea1a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:01:41, skipping insertion in model container [2023-01-27 19:01:41,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:01:41" (3/3) ... [2023-01-27 19:01:41,505 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2023-01-27 19:01:41,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:01:41,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:01:41,524 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:01:41,614 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-27 19:01:41,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-01-27 19:01:41,740 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-01-27 19:01:41,741 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 19:01:41,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 2/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-01-27 19:01:41,744 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-01-27 19:01:41,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:41,748 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:01:41,776 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:41,780 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:41,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-01-27 19:01:41,806 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-01-27 19:01:41,806 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:01:41,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-01-27 19:01:41,807 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-01-27 19:01:43,996 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-01-27 19:01:43,996 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-01-27 19:01:44,011 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:01:44,017 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;@3f9ad602, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:01:44,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-27 19:01:44,019 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-27 19:01:44,019 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:01:44,020 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:01:44,020 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-27 19:01:44,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-27 19:01:44,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:01:44,025 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-01-27 19:01:44,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:01:44,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675713206] [2023-01-27 19:01:44,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:01:44,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:01:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:01:44,204 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:01:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:01:44,270 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:01:44,272 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:01:44,273 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-27 19:01:44,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-27 19:01:44,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-27 19:01:44,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:01:44,275 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 19:01:44,281 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:01:44,281 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:01:44,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:01:44 BasicIcfg [2023-01-27 19:01:44,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:01:44,296 INFO L158 Benchmark]: Toolchain (without parser) took 3939.52ms. Allocated memory is still 465.6MB. Free memory was 414.8MB in the beginning and 419.4MB in the end (delta: -4.5MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:01:44,297 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 318.8MB. Free memory was 265.6MB in the beginning and 265.5MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:01:44,298 INFO L158 Benchmark]: CACSL2BoogieTranslator took 591.77ms. Allocated memory is still 465.6MB. Free memory was 414.8MB in the beginning and 396.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 19:01:44,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.54ms. Allocated memory is still 465.6MB. Free memory was 396.0MB in the beginning and 393.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:01:44,301 INFO L158 Benchmark]: Boogie Preprocessor took 49.27ms. Allocated memory is still 465.6MB. Free memory was 393.9MB in the beginning and 392.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:01:44,302 INFO L158 Benchmark]: RCFGBuilder took 438.57ms. Allocated memory is still 465.6MB. Free memory was 392.6MB in the beginning and 380.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-27 19:01:44,303 INFO L158 Benchmark]: TraceAbstraction took 2815.84ms. Allocated memory is still 465.6MB. Free memory was 379.6MB in the beginning and 420.4MB in the end (delta: -40.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:01:44,307 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 318.8MB. Free memory was 265.6MB in the beginning and 265.5MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 591.77ms. Allocated memory is still 465.6MB. Free memory was 414.8MB in the beginning and 396.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.54ms. Allocated memory is still 465.6MB. Free memory was 396.0MB in the beginning and 393.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 49.27ms. Allocated memory is still 465.6MB. Free memory was 393.9MB in the beginning and 392.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 438.57ms. Allocated memory is still 465.6MB. Free memory was 392.6MB in the beginning and 380.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2815.84ms. Allocated memory is still 465.6MB. Free memory was 379.6MB in the beginning and 420.4MB in the end (delta: -40.8MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 47 PlacesBefore, 9 PlacesAfterwards, 44 TransitionsBefore, 5 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 112, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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 glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 81 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: 2.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 3 NumberOfCodeBlocks, 3 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 19:01:44,327 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...