/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-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 16:59:00,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 16:59:00,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 16:59:00,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 16:59:00,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 16:59:00,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 16:59:00,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 16:59:00,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 16:59:00,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 16:59:00,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 16:59:00,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 16:59:00,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 16:59:00,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 16:59:00,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 16:59:00,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 16:59:00,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 16:59:00,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 16:59:00,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 16:59:00,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 16:59:00,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 16:59:00,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 16:59:00,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 16:59:00,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 16:59:00,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 16:59:00,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 16:59:00,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 16:59:00,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 16:59:00,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 16:59:00,613 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 16:59:00,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 16:59:00,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 16:59:00,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 16:59:00,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 16:59:00,616 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 16:59:00,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 16:59:00,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 16:59:00,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 16:59:00,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 16:59:00,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 16:59:00,619 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 16:59:00,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 16:59:00,620 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-NoLbe.epf [2022-12-06 16:59:00,640 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 16:59:00,640 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 16:59:00,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-06 16:59:00,642 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-06 16:59:00,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 16:59:00,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 16:59:00,643 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 16:59:00,643 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 16:59:00,643 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 16:59:00,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 16:59:00,644 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 16:59:00,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 16:59:00,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 16:59:00,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 16:59:00,645 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 16:59:00,645 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 16:59:00,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 16:59:00,645 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 16:59:00,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 16:59:00,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 16:59:00,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 16:59:00,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 16:59:00,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 16:59:00,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:59:00,646 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 16:59:00,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 16:59:00,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 16:59:00,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 16:59:00,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 16:59:00,647 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-06 16:59:00,648 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-06 16:59:00,648 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-06 16:59:00,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 16:59:00,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 16:59:00,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 16:59:00,976 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 16:59:00,976 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 16:59:00,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-12-06 16:59:02,096 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 16:59:02,298 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 16:59:02,298 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-12-06 16:59:02,309 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09b7a1a11/747dbfc012034469abb6d02eed1e7956/FLAGe29a70f04 [2022-12-06 16:59:02,322 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09b7a1a11/747dbfc012034469abb6d02eed1e7956 [2022-12-06 16:59:02,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 16:59:02,325 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 16:59:02,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 16:59:02,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 16:59:02,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 16:59:02,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6683cd93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02, skipping insertion in model container [2022-12-06 16:59:02,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,336 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 16:59:02,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 16:59:02,496 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/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-12-06 16:59:02,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:59:02,634 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 16:59:02,648 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/36-apron_41-threadenter-no-locals_unknown_1_neg.i[1102,1115] [2022-12-06 16:59:02,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 16:59:02,720 INFO L208 MainTranslator]: Completed translation [2022-12-06 16:59:02,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02 WrapperNode [2022-12-06 16:59:02,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 16:59:02,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 16:59:02,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 16:59:02,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 16:59:02,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,775 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-06 16:59:02,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 16:59:02,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 16:59:02,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 16:59:02,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 16:59:02,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,795 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,806 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 16:59:02,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 16:59:02,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 16:59:02,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 16:59:02,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (1/1) ... [2022-12-06 16:59:02,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 16:59:02,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 16:59:02,849 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) [2022-12-06 16:59:02,866 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 [2022-12-06 16:59:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 16:59:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 16:59:02,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 16:59:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 16:59:02,894 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 16:59:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 16:59:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 16:59:02,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 16:59:02,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 16:59:02,896 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 16:59:03,028 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 16:59:03,030 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 16:59:03,180 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 16:59:03,187 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 16:59:03,187 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-06 16:59:03,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:03 BoogieIcfgContainer [2022-12-06 16:59:03,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 16:59:03,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 16:59:03,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 16:59:03,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 16:59:03,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 04:59:02" (1/3) ... [2022-12-06 16:59:03,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2477b38f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:03, skipping insertion in model container [2022-12-06 16:59:03,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:59:02" (2/3) ... [2022-12-06 16:59:03,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2477b38f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 04:59:03, skipping insertion in model container [2022-12-06 16:59:03,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:59:03" (3/3) ... [2022-12-06 16:59:03,198 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2022-12-06 16:59:03,215 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 16:59:03,215 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 16:59:03,215 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 16:59:03,289 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-06 16:59:03,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 79 flow [2022-12-06 16:59:03,361 INFO L130 PetriNetUnfolder]: 1/36 cut-off events. [2022-12-06 16:59:03,361 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:59:03,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-06 16:59:03,365 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 79 flow [2022-12-06 16:59:03,371 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2022-12-06 16:59:03,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 16:59:03,395 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;@119d9ca0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 16:59:03,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 16:59:03,418 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-12-06 16:59:03,418 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 16:59:03,419 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 16:59:03,419 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 16:59:03,420 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-06 16:59:03,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 16:59:03,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1900788141, now seen corresponding path program 1 times [2022-12-06 16:59:03,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 16:59:03,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300665126] [2022-12-06 16:59:03,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 16:59:03,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 16:59:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:59:03,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 16:59:03,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 16:59:03,634 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 16:59:03,636 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 16:59:03,637 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-06 16:59:03,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-06 16:59:03,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-06 16:59:03,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 16:59:03,640 INFO L458 BasicCegarLoop]: Path program histogram: [1] [2022-12-06 16:59:03,647 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 16:59:03,647 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 16:59:03,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 04:59:03 BasicIcfg [2022-12-06 16:59:03,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 16:59:03,692 INFO L158 Benchmark]: Toolchain (without parser) took 1366.29ms. Allocated memory is still 178.3MB. Free memory was 137.9MB in the beginning and 82.8MB in the end (delta: 55.0MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. [2022-12-06 16:59:03,692 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 16:59:03,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 395.04ms. Allocated memory is still 178.3MB. Free memory was 137.4MB in the beginning and 119.0MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-06 16:59:03,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.60ms. Allocated memory is still 178.3MB. Free memory was 119.0MB in the beginning and 117.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:59:03,693 INFO L158 Benchmark]: Boogie Preprocessor took 31.45ms. Allocated memory is still 178.3MB. Free memory was 117.4MB in the beginning and 116.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 16:59:03,694 INFO L158 Benchmark]: RCFGBuilder took 381.13ms. Allocated memory is still 178.3MB. Free memory was 115.9MB in the beginning and 105.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-12-06 16:59:03,694 INFO L158 Benchmark]: TraceAbstraction took 499.31ms. Allocated memory is still 178.3MB. Free memory was 104.9MB in the beginning and 83.4MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-06 16:59:03,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 154.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 395.04ms. Allocated memory is still 178.3MB. Free memory was 137.4MB in the beginning and 119.0MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 53.60ms. Allocated memory is still 178.3MB. Free memory was 119.0MB in the beginning and 117.4MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.45ms. Allocated memory is still 178.3MB. Free memory was 117.4MB in the beginning and 116.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 381.13ms. Allocated memory is still 178.3MB. Free memory was 115.9MB in the beginning and 105.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 499.31ms. Allocated memory is still 178.3MB. Free memory was 104.9MB in the beginning and 83.4MB in the end (delta: 21.5MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L688] 0 int x = 3; VAL [x=3] [L689] 0 pthread_t id; VAL [id={3:0}, x=3] [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=3, arg={0:0}, arg={0:0}, x=3] [L684] CALL 1 __VERIFIER_assert(!(x == 3)) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: 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, 52 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 24 NumberOfCodeBlocks, 24 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! [2022-12-06 16:59:03,729 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...