/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 20:47:24,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 20:47:24,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 20:47:24,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 20:47:24,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 20:47:24,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 20:47:24,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 20:47:24,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 20:47:24,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 20:47:24,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 20:47:24,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 20:47:24,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 20:47:24,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 20:47:24,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 20:47:24,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 20:47:24,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 20:47:24,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 20:47:24,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 20:47:24,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 20:47:24,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 20:47:24,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 20:47:24,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 20:47:24,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 20:47:24,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 20:47:24,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 20:47:24,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 20:47:24,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 20:47:24,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 20:47:24,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 20:47:24,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-05 20:47:24,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 20:47:24,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 20:47:24,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 20:47:24,517 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-SemanticLbe.epf [2022-12-05 20:47:24,546 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 20:47:24,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 20:47:24,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 20:47:24,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 20:47:24,549 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 20:47:24,549 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 20:47:24,550 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 20:47:24,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 20:47:24,550 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 20:47:24,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 20:47:24,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 20:47:24,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 20:47:24,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 20:47:24,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 20:47:24,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 20:47:24,551 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 20:47:24,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 20:47:24,552 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 20:47:24,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 20:47:24,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 20:47:24,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 20:47:24,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 20:47:24,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 20:47:24,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:47:24,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 20:47:24,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 20:47:24,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 20:47:24,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 20:47:24,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 20:47:24,553 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 20:47:24,553 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 20:47:24,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 20:47:24,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 20:47:24,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 20:47:24,882 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 20:47:24,883 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 20:47:24,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-12-05 20:47:26,018 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 20:47:26,271 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 20:47:26,272 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-12-05 20:47:26,292 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5839c380d/8b592af0e6f14484b736553402f509a0/FLAG5bda10f5b [2022-12-05 20:47:26,308 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5839c380d/8b592af0e6f14484b736553402f509a0 [2022-12-05 20:47:26,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 20:47:26,311 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 20:47:26,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 20:47:26,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 20:47:26,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 20:47:26,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:26,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@792a1975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26, skipping insertion in model container [2022-12-05 20:47:26,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:26,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 20:47:26,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 20:47:26,534 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_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-12-05 20:47:26,812 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-05 20:47:26,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:47:26,824 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 20:47:26,833 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_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-12-05 20:47:26,862 WARN L623 FunctionHandler]: Unknown extern function sleep [2022-12-05 20:47:26,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 20:47:26,928 INFO L208 MainTranslator]: Completed translation [2022-12-05 20:47:26,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26 WrapperNode [2022-12-05 20:47:26,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 20:47:26,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 20:47:26,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 20:47:26,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 20:47:26,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:26,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:26,980 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-12-05 20:47:26,981 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 20:47:26,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 20:47:26,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 20:47:26,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 20:47:26,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:26,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:26,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:26,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:27,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:27,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:27,007 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:27,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:27,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 20:47:27,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 20:47:27,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 20:47:27,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 20:47:27,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (1/1) ... [2022-12-05 20:47:27,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 20:47:27,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 20:47:27,057 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) [2022-12-05 20:47:27,082 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 [2022-12-05 20:47:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-12-05 20:47:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-12-05 20:47:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-12-05 20:47:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-12-05 20:47:27,099 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-12-05 20:47:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 20:47:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 20:47:27,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 20:47:27,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 20:47:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 20:47:27,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 20:47:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 20:47:27,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 20:47:27,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 20:47:27,105 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 20:47:27,428 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 20:47:27,429 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 20:47:27,609 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 20:47:27,619 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 20:47:27,619 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 20:47:27,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:47:27 BoogieIcfgContainer [2022-12-05 20:47:27,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 20:47:27,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 20:47:27,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 20:47:27,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 20:47:27,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 08:47:26" (1/3) ... [2022-12-05 20:47:27,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6ff1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:47:27, skipping insertion in model container [2022-12-05 20:47:27,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 08:47:26" (2/3) ... [2022-12-05 20:47:27,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6ff1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 08:47:27, skipping insertion in model container [2022-12-05 20:47:27,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 08:47:27" (3/3) ... [2022-12-05 20:47:27,628 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-12-05 20:47:27,644 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 20:47:27,644 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 20:47:27,644 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 20:47:27,701 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-05 20:47:27,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2022-12-05 20:47:27,794 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2022-12-05 20:47:27,794 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 20:47:27,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 1/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2022-12-05 20:47:27,798 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2022-12-05 20:47:27,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 70 transitions, 149 flow [2022-12-05 20:47:27,808 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 20:47:27,826 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 70 transitions, 149 flow [2022-12-05 20:47:27,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 70 transitions, 149 flow [2022-12-05 20:47:27,891 INFO L130 PetriNetUnfolder]: 0/70 cut-off events. [2022-12-05 20:47:27,891 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:47:27,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 70 events. 0/70 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 40 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-05 20:47:27,893 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 70 transitions, 149 flow [2022-12-05 20:47:27,893 INFO L188 LiptonReduction]: Number of co-enabled transitions 552 [2022-12-05 20:47:31,846 INFO L203 LiptonReduction]: Total number of compositions: 59 [2022-12-05 20:47:31,865 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 20:47:31,871 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;@ee32f03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 20:47:31,871 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-05 20:47:31,881 INFO L130 PetriNetUnfolder]: 0/10 cut-off events. [2022-12-05 20:47:31,881 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 20:47:31,881 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:31,882 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-05 20:47:31,883 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:47:31,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:31,887 INFO L85 PathProgramCache]: Analyzing trace with hash 197933511, now seen corresponding path program 1 times [2022-12-05 20:47:31,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:31,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473514094] [2022-12-05 20:47:31,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:31,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:32,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:32,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:32,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473514094] [2022-12-05 20:47:32,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473514094] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:32,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:32,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 20:47:32,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727578936] [2022-12-05 20:47:32,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:32,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:47:32,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:32,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:47:32,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:47:32,311 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 13 [2022-12-05 20:47:32,312 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 35 flow. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:32,312 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:32,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 13 [2022-12-05 20:47:32,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:32,362 INFO L130 PetriNetUnfolder]: 17/53 cut-off events. [2022-12-05 20:47:32,362 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-05 20:47:32,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 53 events. 17/53 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 134 event pairs, 10 based on Foata normal form. 6/59 useless extension candidates. Maximal degree in co-relation 85. Up to 31 conditions per place. [2022-12-05 20:47:32,364 INFO L137 encePairwiseOnDemand]: 9/13 looper letters, 12 selfloop transitions, 3 changer transitions 0/17 dead transitions. [2022-12-05 20:47:32,364 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 17 transitions, 76 flow [2022-12-05 20:47:32,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:47:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:47:32,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2022-12-05 20:47:32,374 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2022-12-05 20:47:32,375 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 35 flow. Second operand 3 states and 22 transitions. [2022-12-05 20:47:32,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 17 transitions, 76 flow [2022-12-05 20:47:32,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 17 transitions, 70 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-05 20:47:32,378 INFO L231 Difference]: Finished difference. Result has 20 places, 13 transitions, 41 flow [2022-12-05 20:47:32,380 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=17, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=41, PETRI_PLACES=20, PETRI_TRANSITIONS=13} [2022-12-05 20:47:32,383 INFO L294 CegarLoopForPetriNet]: 20 programPoint places, 0 predicate places. [2022-12-05 20:47:32,383 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 13 transitions, 41 flow [2022-12-05 20:47:32,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:32,383 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:32,384 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:32,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 20:47:32,384 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:47:32,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:32,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1840971304, now seen corresponding path program 1 times [2022-12-05 20:47:32,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:32,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466868533] [2022-12-05 20:47:32,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:32,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 20:47:32,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 20:47:32,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 20:47:32,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466868533] [2022-12-05 20:47:32,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466868533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 20:47:32,551 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 20:47:32,551 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 20:47:32,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950514843] [2022-12-05 20:47:32,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 20:47:32,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 20:47:32,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 20:47:32,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 20:47:32,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 20:47:32,553 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 13 [2022-12-05 20:47:32,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 41 flow. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:32,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 20:47:32,555 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 13 [2022-12-05 20:47:32,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 20:47:32,600 INFO L130 PetriNetUnfolder]: 15/45 cut-off events. [2022-12-05 20:47:32,600 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-05 20:47:32,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 45 events. 15/45 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 119 event pairs, 6 based on Foata normal form. 4/49 useless extension candidates. Maximal degree in co-relation 29. Up to 23 conditions per place. [2022-12-05 20:47:32,601 INFO L137 encePairwiseOnDemand]: 9/13 looper letters, 9 selfloop transitions, 3 changer transitions 6/18 dead transitions. [2022-12-05 20:47:32,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 88 flow [2022-12-05 20:47:32,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 20:47:32,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 20:47:32,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2022-12-05 20:47:32,603 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2022-12-05 20:47:32,603 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 41 flow. Second operand 3 states and 22 transitions. [2022-12-05 20:47:32,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 88 flow [2022-12-05 20:47:32,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 18 transitions, 82 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 20:47:32,606 INFO L231 Difference]: Finished difference. Result has 20 places, 9 transitions, 31 flow [2022-12-05 20:47:32,606 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=13, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=31, PETRI_PLACES=20, PETRI_TRANSITIONS=9} [2022-12-05 20:47:32,607 INFO L294 CegarLoopForPetriNet]: 20 programPoint places, 0 predicate places. [2022-12-05 20:47:32,607 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 9 transitions, 31 flow [2022-12-05 20:47:32,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-05 20:47:32,607 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 20:47:32,608 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 20:47:32,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 20:47:32,608 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 20:47:32,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 20:47:32,608 INFO L85 PathProgramCache]: Analyzing trace with hash 611116719, now seen corresponding path program 1 times [2022-12-05 20:47:32,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 20:47:32,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513450231] [2022-12-05 20:47:32,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 20:47:32,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 20:47:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:47:32,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 20:47:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 20:47:32,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 20:47:32,688 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 20:47:32,689 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-12-05 20:47:32,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-12-05 20:47:32,690 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-05 20:47:32,691 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-12-05 20:47:32,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 20:47:32,691 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-05 20:47:32,695 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 20:47:32,695 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 20:47:32,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 08:47:32 BasicIcfg [2022-12-05 20:47:32,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 20:47:32,722 INFO L158 Benchmark]: Toolchain (without parser) took 6411.15ms. Allocated memory was 227.5MB in the beginning and 288.4MB in the end (delta: 60.8MB). Free memory was 201.2MB in the beginning and 150.3MB in the end (delta: 50.9MB). Peak memory consumption was 113.3MB. Max. memory is 8.0GB. [2022-12-05 20:47:32,722 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 227.5MB. Free memory is still 204.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 20:47:32,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 615.24ms. Allocated memory is still 227.5MB. Free memory was 200.7MB in the beginning and 163.5MB in the end (delta: 37.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2022-12-05 20:47:32,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.43ms. Allocated memory is still 227.5MB. Free memory was 163.5MB in the beginning and 160.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 20:47:32,723 INFO L158 Benchmark]: Boogie Preprocessor took 31.88ms. Allocated memory is still 227.5MB. Free memory was 160.9MB in the beginning and 158.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 20:47:32,723 INFO L158 Benchmark]: RCFGBuilder took 607.57ms. Allocated memory is still 227.5MB. Free memory was 158.2MB in the beginning and 138.8MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-05 20:47:32,724 INFO L158 Benchmark]: TraceAbstraction took 5098.18ms. Allocated memory was 227.5MB in the beginning and 288.4MB in the end (delta: 60.8MB). Free memory was 138.3MB in the beginning and 150.3MB in the end (delta: -12.0MB). Peak memory consumption was 50.4MB. Max. memory is 8.0GB. [2022-12-05 20:47:32,725 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 227.5MB. Free memory is still 204.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 615.24ms. Allocated memory is still 227.5MB. Free memory was 200.7MB in the beginning and 163.5MB in the end (delta: 37.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.43ms. Allocated memory is still 227.5MB. Free memory was 163.5MB in the beginning and 160.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.88ms. Allocated memory is still 227.5MB. Free memory was 160.9MB in the beginning and 158.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 607.57ms. Allocated memory is still 227.5MB. Free memory was 158.2MB in the beginning and 138.8MB in the end (delta: 19.4MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * TraceAbstraction took 5098.18ms. Allocated memory was 227.5MB in the beginning and 288.4MB in the end (delta: 60.8MB). Free memory was 138.3MB in the beginning and 150.3MB in the end (delta: -12.0MB). Peak memory consumption was 50.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 77 PlacesBefore, 20 PlacesAfterwards, 70 TransitionsBefore, 13 TransitionsAfterwards, 552 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 34 TrivialYvCompositions, 25 ConcurrentYvCompositions, 0 ChoiceCompositions, 59 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 366, independent: 343, independent conditional: 343, independent unconditional: 0, dependent: 23, dependent conditional: 23, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 366, independent: 343, independent conditional: 0, independent unconditional: 343, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 366, independent: 343, independent conditional: 0, independent unconditional: 343, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 366, independent: 343, independent conditional: 0, independent unconditional: 343, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 320, independent: 309, independent conditional: 0, independent unconditional: 309, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 320, independent: 301, independent conditional: 0, independent unconditional: 301, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 19, independent: 8, independent conditional: 0, independent unconditional: 8, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 19, dependent conditional: 0, dependent unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 366, independent: 34, independent conditional: 0, independent unconditional: 34, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 320, unknown conditional: 0, unknown unconditional: 320] , Statistics on independence cache: Total cache size (in pairs): 519, Positive cache size: 508, Positive conditional cache size: 0, Positive unconditional cache size: 508, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, 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: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-1, ptr={0:0}, t1={6:0}, t2={5:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1151:1152}, argv={1151:1152}, cond={4:0}, g=1, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=0, ptr={0:0}, ptr={0:0}, t1={6:0}, t2={5:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: 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. - UnprovableResult [Line: 1377]: 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 5 procedures, 118 locations, 4 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: 5.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-12-05 20:47:32,741 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...