/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 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 01:27:02,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 01:27:02,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 01:27:02,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 01:27:02,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 01:27:02,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 01:27:02,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 01:27:02,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 01:27:02,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 01:27:02,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 01:27:02,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 01:27:02,587 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 01:27:02,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 01:27:02,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 01:27:02,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 01:27:02,592 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 01:27:02,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 01:27:02,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 01:27:02,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 01:27:02,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 01:27:02,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 01:27:02,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 01:27:02,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 01:27:02,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 01:27:02,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 01:27:02,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 01:27:02,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 01:27:02,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 01:27:02,622 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 [2023-01-28 01:27:02,650 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 01:27:02,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 01:27:02,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 01:27:02,652 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 01:27:02,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 01:27:02,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 01:27:02,653 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 01:27:02,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 01:27:02,653 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 01:27:02,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 01:27:02,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 01:27:02,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 01:27:02,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 01:27:02,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 01:27:02,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 01:27:02,655 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 01:27:02,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 01:27:02,655 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 01:27:02,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 01:27:02,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 01:27:02,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 01:27:02,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 01:27:02,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 01:27:02,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:27:02,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 01:27:02,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 01:27:02,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 01:27:02,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 01:27:02,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 01:27:02,657 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 01:27:02,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 01:27:02,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 01:27:02,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 01:27:02,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 01:27:02,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 01:27:02,914 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 01:27:02,915 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 01:27:02,916 INFO L432 ainManager$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_neg.i [2023-01-28 01:27:03,979 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 01:27:04,205 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 01:27:04,207 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2023-01-28 01:27:04,217 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60916f63e/1b90c26ce4ac4bebad00c574fee9a3c0/FLAG875330575 [2023-01-28 01:27:04,229 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60916f63e/1b90c26ce4ac4bebad00c574fee9a3c0 [2023-01-28 01:27:04,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 01:27:04,232 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 01:27:04,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 01:27:04,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 01:27:04,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 01:27:04,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ae7851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04, skipping insertion in model container [2023-01-28 01:27:04,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 01:27:04,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 01:27:04,443 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_neg.i[1097,1110] [2023-01-28 01:27:04,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:27:04,623 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 01:27:04,636 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_neg.i[1097,1110] [2023-01-28 01:27:04,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:27:04,704 INFO L208 MainTranslator]: Completed translation [2023-01-28 01:27:04,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04 WrapperNode [2023-01-28 01:27:04,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 01:27:04,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 01:27:04,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 01:27:04,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 01:27:04,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,755 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-01-28 01:27:04,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 01:27:04,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 01:27:04,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 01:27:04,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 01:27:04,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,789 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 01:27:04,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 01:27:04,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 01:27:04,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 01:27:04,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (1/1) ... [2023-01-28 01:27:04,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:27:04,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 01:27:04,835 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) [2023-01-28 01:27:04,862 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 [2023-01-28 01:27:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 01:27:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 01:27:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 01:27:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 01:27:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 01:27:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 01:27:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 01:27:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 01:27:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 01:27:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 01:27:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 01:27:04,880 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 01:27:05,049 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 01:27:05,051 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 01:27:05,155 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 01:27:05,161 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 01:27:05,161 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 01:27:05,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:27:05 BoogieIcfgContainer [2023-01-28 01:27:05,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 01:27:05,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 01:27:05,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 01:27:05,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 01:27:05,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:27:04" (1/3) ... [2023-01-28 01:27:05,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f456803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:27:05, skipping insertion in model container [2023-01-28 01:27:05,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:27:04" (2/3) ... [2023-01-28 01:27:05,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f456803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:27:05, skipping insertion in model container [2023-01-28 01:27:05,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:27:05" (3/3) ... [2023-01-28 01:27:05,169 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2023-01-28 01:27:05,184 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 01:27:05,184 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 01:27:05,184 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 01:27:05,228 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 01:27:05,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 01:27:05,294 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-01-28 01:27:05,294 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 01:27:05,297 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. [2023-01-28 01:27:05,297 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 01:27:05,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-01-28 01:27:05,302 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:27:05,310 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 01:27:05,311 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 01:27:05,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-01-28 01:27:05,322 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-01-28 01:27:05,323 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:27:05,323 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. [2023-01-28 01:27:05,324 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-01-28 01:27:07,231 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-01-28 01:27:07,231 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-01-28 01:27:07,243 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 01:27:07,251 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;@74ca83ea, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:27:07,252 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 01:27:07,255 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-28 01:27:07,255 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:27:07,255 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:27:07,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 01:27:07,256 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-28 01:27:07,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:27:07,263 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-01-28 01:27:07,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:27:07,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877589054] [2023-01-28 01:27:07,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:27:07,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:27:07,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:27:07,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:27:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:27:07,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:27:07,459 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:27:07,460 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 01:27:07,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 01:27:07,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-28 01:27:07,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 01:27:07,467 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:27:07,480 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 01:27:07,481 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 01:27:07,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 01:27:07 BasicIcfg [2023-01-28 01:27:07,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 01:27:07,501 INFO L158 Benchmark]: Toolchain (without parser) took 3268.49ms. Allocated memory is still 325.1MB. Free memory was 271.7MB in the beginning and 226.2MB in the end (delta: 45.5MB). Peak memory consumption was 45.8MB. Max. memory is 16.0GB. [2023-01-28 01:27:07,502 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 255.9MB. Free memory is still 214.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 01:27:07,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.01ms. Allocated memory is still 325.1MB. Free memory was 271.7MB in the beginning and 252.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 01:27:07,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.49ms. Allocated memory is still 325.1MB. Free memory was 252.8MB in the beginning and 251.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 01:27:07,508 INFO L158 Benchmark]: Boogie Preprocessor took 35.73ms. Allocated memory is still 325.1MB. Free memory was 251.0MB in the beginning and 249.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 01:27:07,508 INFO L158 Benchmark]: RCFGBuilder took 370.29ms. Allocated memory is still 325.1MB. Free memory was 249.5MB in the beginning and 290.3MB in the end (delta: -40.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.0GB. [2023-01-28 01:27:07,509 INFO L158 Benchmark]: TraceAbstraction took 2335.57ms. Allocated memory is still 325.1MB. Free memory was 289.6MB in the beginning and 226.2MB in the end (delta: 63.4MB). Peak memory consumption was 62.0MB. Max. memory is 16.0GB. [2023-01-28 01:27:07,516 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 255.9MB. Free memory is still 214.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 469.01ms. Allocated memory is still 325.1MB. Free memory was 271.7MB in the beginning and 252.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.49ms. Allocated memory is still 325.1MB. Free memory was 252.8MB in the beginning and 251.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. * Boogie Preprocessor took 35.73ms. Allocated memory is still 325.1MB. Free memory was 251.0MB in the beginning and 249.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 370.29ms. Allocated memory is still 325.1MB. Free memory was 249.5MB in the beginning and 290.3MB in the end (delta: -40.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.0GB. * TraceAbstraction took 2335.57ms. Allocated memory is still 325.1MB. Free memory was 289.6MB in the beginning and 226.2MB in the end (delta: 63.4MB). Peak memory consumption was 62.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 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 FALSE 1 !(t == 42) [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=0, 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: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, 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! [2023-01-28 01:27:07,537 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...