/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:39:52,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:39:52,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:39:52,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:39:52,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:39:52,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:39:52,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:39:52,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:39:52,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:39:52,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:39:52,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:39:52,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:39:52,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:39:52,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:39:52,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:39:52,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:39:52,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:39:52,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:39:52,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:39:52,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:39:52,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:39:52,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:39:52,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:39:52,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:39:52,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:39:52,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:39:52,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:39:52,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:39:52,585 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:39:52,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:39:52,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:39:52,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:39:52,589 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:39:52,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:39:52,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:39:52,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:39:52,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:39:52,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:39:52,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:39:52,592 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:39:52,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:39:52,607 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-RepeatedSemanticLbe.epf [2022-12-13 03:39:52,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:39:52,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:39:52,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:39:52,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:39:52,626 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:39:52,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:39:52,627 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:39:52,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:39:52,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:39:52,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:39:52,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:39:52,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:39:52,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:39:52,628 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:39:52,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:39:52,628 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:39:52,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:39:52,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:39:52,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:39:52,629 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:39:52,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:39:52,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:39:52,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:39:52,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:39:52,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:39:52,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:39:52,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:39:52,629 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:39:52,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:39:52,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:39:52,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:39:52,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:39:52,914 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:39:52,918 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:39:52,919 INFO L432 ainManager$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 [2022-12-13 03:39:53,898 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:39:54,157 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:39:54,157 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2022-12-13 03:39:54,172 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04f459ed6/2f5543234eb8481fa544c7e75086926b/FLAGd49d4806a [2022-12-13 03:39:54,184 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04f459ed6/2f5543234eb8481fa544c7e75086926b [2022-12-13 03:39:54,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:39:54,187 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:39:54,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:39:54,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:39:54,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:39:54,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68702408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54, skipping insertion in model container [2022-12-13 03:39:54,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:39:54,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:39:54,384 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2022-12-13 03:39:54,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:39:54,530 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:39:54,540 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2022-12-13 03:39:54,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:39:54,600 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:39:54,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54 WrapperNode [2022-12-13 03:39:54,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:39:54,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:39:54,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:39:54,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:39:54,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,651 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-13 03:39:54,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:39:54,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:39:54,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:39:54,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:39:54,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,678 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:39:54,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:39:54,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:39:54,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:39:54,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (1/1) ... [2022-12-13 03:39:54,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:39:54,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:39:54,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 03:39:54,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 03:39:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 03:39:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:39:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 03:39:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:39:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:39:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 03:39:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 03:39:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:39:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:39:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:39:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:39:54,737 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:39:54,839 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:39:54,840 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:39:54,949 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:39:54,953 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:39:54,953 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:39:54,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:39:54 BoogieIcfgContainer [2022-12-13 03:39:54,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:39:54,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:39:54,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:39:54,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:39:54,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:39:54" (1/3) ... [2022-12-13 03:39:54,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e02a3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:39:54, skipping insertion in model container [2022-12-13 03:39:54,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:54" (2/3) ... [2022-12-13 03:39:54,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e02a3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:39:54, skipping insertion in model container [2022-12-13 03:39:54,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:39:54" (3/3) ... [2022-12-13 03:39:54,961 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2022-12-13 03:39:54,977 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:39:54,977 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 03:39:54,977 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:39:55,040 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 03:39:55,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-13 03:39:55,157 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-13 03:39:55,157 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 03:39:55,171 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 2/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-13 03:39:55,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-13 03:39:55,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-13 03:39:55,177 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:39:55,202 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-13 03:39:55,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 89 flow [2022-12-13 03:39:55,225 INFO L130 PetriNetUnfolder]: 1/43 cut-off events. [2022-12-13 03:39:55,225 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:39:55,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-13 03:39:55,229 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-13 03:39:55,229 INFO L226 LiptonReduction]: Number of co-enabled transitions 180 [2022-12-13 03:39:57,053 INFO L241 LiptonReduction]: Total number of compositions: 39 [2022-12-13 03:39:57,067 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:39:57,076 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=REPEATED_LIPTON_PN, 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;@1d54ca31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:39:57,076 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 03:39:57,081 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-13 03:39:57,081 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:39:57,081 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:39:57,082 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 03:39:57,083 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 03:39:57,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:39:57,086 INFO L85 PathProgramCache]: Analyzing trace with hash 221970, now seen corresponding path program 1 times [2022-12-13 03:39:57,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:39:57,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824550064] [2022-12-13 03:39:57,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:39:57,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:39:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 03:39:57,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 03:39:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 03:39:57,245 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 03:39:57,246 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 03:39:57,247 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 03:39:57,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 03:39:57,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-13 03:39:57,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:39:57,250 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 03:39:57,258 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 03:39:57,258 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 03:39:57,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:39:57 BasicIcfg [2022-12-13 03:39:57,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 03:39:57,274 INFO L158 Benchmark]: Toolchain (without parser) took 3086.64ms. Allocated memory was 180.4MB in the beginning and 224.4MB in the end (delta: 44.0MB). Free memory was 155.2MB in the beginning and 137.8MB in the end (delta: 17.5MB). Peak memory consumption was 61.8MB. Max. memory is 8.0GB. [2022-12-13 03:39:57,277 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 180.4MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:39:57,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 413.33ms. Allocated memory is still 180.4MB. Free memory was 155.0MB in the beginning and 136.3MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-13 03:39:57,278 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.59ms. Allocated memory is still 180.4MB. Free memory was 136.3MB in the beginning and 134.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 03:39:57,278 INFO L158 Benchmark]: Boogie Preprocessor took 27.80ms. Allocated memory is still 180.4MB. Free memory was 134.3MB in the beginning and 132.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 03:39:57,279 INFO L158 Benchmark]: RCFGBuilder took 274.40ms. Allocated memory is still 180.4MB. Free memory was 132.9MB in the beginning and 121.1MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-13 03:39:57,280 INFO L158 Benchmark]: TraceAbstraction took 2315.98ms. Allocated memory was 180.4MB in the beginning and 224.4MB in the end (delta: 44.0MB). Free memory was 120.1MB in the beginning and 137.8MB in the end (delta: -17.7MB). Peak memory consumption was 27.2MB. Max. memory is 8.0GB. [2022-12-13 03:39:57,284 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 180.4MB. Free memory is still 156.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 413.33ms. Allocated memory is still 180.4MB. Free memory was 155.0MB in the beginning and 136.3MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.59ms. Allocated memory is still 180.4MB. Free memory was 136.3MB in the beginning and 134.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 27.80ms. Allocated memory is still 180.4MB. Free memory was 134.3MB in the beginning and 132.9MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 274.40ms. Allocated memory is still 180.4MB. Free memory was 132.9MB in the beginning and 121.1MB in the end (delta: 11.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2315.98ms. Allocated memory was 180.4MB in the beginning and 224.4MB in the end (delta: 44.0MB). Free memory was 120.1MB in the beginning and 137.8MB in the end (delta: -17.7MB). Peak memory consumption was 27.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 46 PlacesBefore, 13 PlacesAfterwards, 43 TransitionsBefore, 9 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 18 ConcurrentYvCompositions, 1 ChoiceCompositions, 39 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 198, independent: 197, independent conditional: 197, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 198, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 198, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 198, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 141, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 141, independent: 127, independent conditional: 0, independent unconditional: 127, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, independent: 44, independent conditional: 0, independent unconditional: 44, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 198, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 141, unknown conditional: 0, unknown unconditional: 141] , Statistics on independence cache: Total cache size (in pairs): 314, Positive cache size: 313, Positive conditional cache size: 0, Positive unconditional cache size: 313, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [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))=-1] [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, 79 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=21occurred 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! [2022-12-13 03:39:57,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...