./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_19-publish-precision_unknown_1_pos.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 59af5db6 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_19-publish-precision_unknown_1_pos.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-59af5db-m [2024-02-02 09:36:14,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:36:14,728 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:36:14,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:36:14,735 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:36:14,753 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:36:14,753 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:36:14,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:36:14,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:36:14,754 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:36:14,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:36:14,755 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:36:14,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:36:14,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:36:14,756 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:36:14,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:36:14,756 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:36:14,757 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:36:14,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:36:14,757 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:36:14,757 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:36:14,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:36:14,758 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:36:14,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:36:14,759 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:36:14,759 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:36:14,759 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:36:14,759 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:36:14,759 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:36:14,760 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:36:14,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:36:14,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:36:14,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:36:14,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:36:14,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:36:14,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:36:14,761 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:36:14,761 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:36:14,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:36:14,762 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:36:14,762 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:36:14,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:36:14,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:36:14,763 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:36:15,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:36:15,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:36:15,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:36:15,025 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:36:15,025 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:36:15,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2024-02-02 09:36:16,120 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:36:16,327 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:36:16,327 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2024-02-02 09:36:16,347 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f6ff7ad1/4430ccb098a749bd819a5eff1717c002/FLAGcd158afb3 [2024-02-02 09:36:16,360 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f6ff7ad1/4430ccb098a749bd819a5eff1717c002 [2024-02-02 09:36:16,362 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:36:16,362 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:36:16,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_19-publish-precision_unknown_1_pos.yml/witness.yml [2024-02-02 09:36:16,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:36:16,445 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:36:16,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:36:16,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:36:16,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:36:16,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:36:16" (1/2) ... [2024-02-02 09:36:16,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5878d671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:16, skipping insertion in model container [2024-02-02 09:36:16,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:36:16" (1/2) ... [2024-02-02 09:36:16,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1d4c3334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:36:16, skipping insertion in model container [2024-02-02 09:36:16,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:36:16" (2/2) ... [2024-02-02 09:36:16,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5878d671 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16, skipping insertion in model container [2024-02-02 09:36:16,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:36:16" (2/2) ... [2024-02-02 09:36:16,454 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:36:16,506 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:36:16,508 INFO L101 nessWitnessExtractor]: Location invariant before [L700-L700] ((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && (glob1 == 0 || glob1 == 5) [2024-02-02 09:36:16,508 INFO L101 nessWitnessExtractor]: Location invariant before [L692-L692] (glob1 == 0) && ((unsigned long )arg == 0UL) [2024-02-02 09:36:16,508 INFO L101 nessWitnessExtractor]: Location invariant before [L687-L687] (((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && ((unsigned long )arg == 0UL)) && (glob1 == 0 || glob1 == 5) [2024-02-02 09:36:16,508 INFO L101 nessWitnessExtractor]: Location invariant before [L699-L699] ((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && (glob1 == 0 || glob1 == 5) [2024-02-02 09:36:16,508 INFO L101 nessWitnessExtractor]: Location invariant before [L690-L690] (glob1 == 5) && ((unsigned long )arg == 0UL) [2024-02-02 09:36:16,509 INFO L101 nessWitnessExtractor]: Location invariant before [L688-L688] (glob1 == 5) && ((unsigned long )arg == 0UL) [2024-02-02 09:36:16,509 INFO L101 nessWitnessExtractor]: Location invariant before [L689-L689] (glob1 == 5) && ((unsigned long )arg == 0UL) [2024-02-02 09:36:16,509 INFO L101 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-02-02 09:36:16,509 INFO L101 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-02-02 09:36:16,509 INFO L101 nessWitnessExtractor]: Location invariant before [L691-L691] (glob1 == 0) && ((unsigned long )arg == 0UL) [2024-02-02 09:36:16,510 INFO L101 nessWitnessExtractor]: Location invariant before [L19-L19] ((((((((((((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && (glob1 == 0 || glob1 == 5)) && (0 <= glob1)) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && (glob1 == 0 || glob1 == 5)) && (0 <= glob1)) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && (glob1 == 0 || glob1 == 5) [2024-02-02 09:36:16,510 INFO L101 nessWitnessExtractor]: Location invariant before [L697-L697] glob1 == 0 [2024-02-02 09:36:16,510 INFO L101 nessWitnessExtractor]: Location invariant before [L686-L686] (((((0 <= glob1) && (glob1 <= 5)) && (glob1 <= 127)) && (glob1 % 5 == 0)) && ((unsigned long )arg == 0UL)) && (glob1 == 0 || glob1 == 5) [2024-02-02 09:36:16,549 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:36:16,733 WARN L239 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_19-publish-precision_unknown_1_pos.i[1103,1116] [2024-02-02 09:36:16,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:36:16,849 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:36:16,859 WARN L239 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_19-publish-precision_unknown_1_pos.i[1103,1116] [2024-02-02 09:36:16,860 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:36:16,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:36:16,952 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:36:16,953 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16 WrapperNode [2024-02-02 09:36:16,953 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:36:16,954 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:36:16,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:36:16,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:36:16,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:16,980 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:17,002 INFO L138 Inliner]: procedures = 163, calls = 33, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2024-02-02 09:36:17,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:36:17,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:36:17,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:36:17,004 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:36:17,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:17,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:17,019 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:17,034 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-02-02 09:36:17,035 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:17,035 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:17,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:17,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:17,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:17,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:17,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:36:17,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:36:17,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:36:17,053 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:36:17,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (1/1) ... [2024-02-02 09:36:17,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:36:17,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:36:17,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-02 09:36:17,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-02 09:36:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:36:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:36:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:36:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:36:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:36:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:36:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:36:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:36:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-02 09:36:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:36:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:36:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-02 09:36:17,121 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-02 09:36:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:36:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:36:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:36:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:36:17,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:36:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-02 09:36:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:36:17,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:36:17,123 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:36:17,225 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:36:17,226 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:36:17,437 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:36:17,437 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:36:17,508 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:36:17,508 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-02 09:36:17,509 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:36:17 BoogieIcfgContainer [2024-02-02 09:36:17,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:36:17,510 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:36:17,510 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:36:17,513 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:36:17,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:36:16" (1/4) ... [2024-02-02 09:36:17,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fb2eeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:36:17, skipping insertion in model container [2024-02-02 09:36:17,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:36:16" (2/4) ... [2024-02-02 09:36:17,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fb2eeb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:36:17, skipping insertion in model container [2024-02-02 09:36:17,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:36:16" (3/4) ... [2024-02-02 09:36:17,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15fb2eeb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:36:17, skipping insertion in model container [2024-02-02 09:36:17,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:36:17" (4/4) ... [2024-02-02 09:36:17,516 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2024-02-02 09:36:17,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:36:17,529 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-02-02 09:36:17,529 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:36:17,570 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-02-02 09:36:17,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 52 transitions, 111 flow [2024-02-02 09:36:17,625 INFO L124 PetriNetUnfolderBase]: 1/51 cut-off events. [2024-02-02 09:36:17,625 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-02 09:36:17,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 51 events. 1/51 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-02-02 09:36:17,628 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 52 transitions, 111 flow [2024-02-02 09:36:17,630 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 49 transitions, 101 flow [2024-02-02 09:36:17,637 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:36:17,642 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=LoopHeads, 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;@9df9222, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:36:17,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-02-02 09:36:17,644 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:36:17,644 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:36:17,645 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:36:17,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:17,647 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:36:17,647 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-02-02 09:36:17,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:17,651 INFO L85 PathProgramCache]: Analyzing trace with hash 7461, now seen corresponding path program 1 times [2024-02-02 09:36:17,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:17,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413078092] [2024-02-02 09:36:17,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:17,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:36:17,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:36:17,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:36:17,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413078092] [2024-02-02 09:36:17,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413078092] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:36:17,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:36:17,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:36:17,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022479929] [2024-02-02 09:36:17,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:36:17,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:36:17,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:36:17,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:36:17,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:36:17,945 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 52 [2024-02-02 09:36:17,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 49 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-02-02 09:36:17,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:36:17,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 52 [2024-02-02 09:36:17,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:36:18,071 INFO L124 PetriNetUnfolderBase]: 86/312 cut-off events. [2024-02-02 09:36:18,072 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:36:18,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 525 conditions, 312 events. 86/312 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1480 event pairs, 56 based on Foata normal form. 23/319 useless extension candidates. Maximal degree in co-relation 514. Up to 125 conditions per place. [2024-02-02 09:36:18,077 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 27 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2024-02-02 09:36:18,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 169 flow [2024-02-02 09:36:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:36:18,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:36:18,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 107 transitions. [2024-02-02 09:36:18,088 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6858974358974359 [2024-02-02 09:36:18,089 INFO L175 Difference]: Start difference. First operand has 52 places, 49 transitions, 101 flow. Second operand 3 states and 107 transitions. [2024-02-02 09:36:18,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 169 flow [2024-02-02 09:36:18,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 53 transitions, 168 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:36:18,097 INFO L231 Difference]: Finished difference. Result has 53 places, 47 transitions, 109 flow [2024-02-02 09:36:18,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=53, PETRI_TRANSITIONS=47} [2024-02-02 09:36:18,102 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2024-02-02 09:36:18,102 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 47 transitions, 109 flow [2024-02-02 09:36:18,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2024-02-02 09:36:18,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:18,103 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:36:18,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:36:18,104 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-02-02 09:36:18,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:18,107 INFO L85 PathProgramCache]: Analyzing trace with hash 222556606, now seen corresponding path program 1 times [2024-02-02 09:36:18,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:18,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904165940] [2024-02-02 09:36:18,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:18,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:18,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:36:18,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:36:18,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:36:18,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904165940] [2024-02-02 09:36:18,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904165940] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:36:18,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:36:18,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:36:18,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31301249] [2024-02-02 09:36:18,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:36:18,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:36:18,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:36:18,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:36:18,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:36:18,294 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 52 [2024-02-02 09:36:18,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 47 transitions, 109 flow. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2024-02-02 09:36:18,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:36:18,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 52 [2024-02-02 09:36:18,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:36:18,382 INFO L124 PetriNetUnfolderBase]: 60/265 cut-off events. [2024-02-02 09:36:18,383 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-02-02 09:36:18,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 265 events. 60/265 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1220 event pairs, 36 based on Foata normal form. 7/238 useless extension candidates. Maximal degree in co-relation 433. Up to 138 conditions per place. [2024-02-02 09:36:18,387 INFO L140 encePairwiseOnDemand]: 48/52 looper letters, 23 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-02-02 09:36:18,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 51 transitions, 167 flow [2024-02-02 09:36:18,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:36:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:36:18,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2024-02-02 09:36:18,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6682692307692307 [2024-02-02 09:36:18,395 INFO L175 Difference]: Start difference. First operand has 53 places, 47 transitions, 109 flow. Second operand 4 states and 139 transitions. [2024-02-02 09:36:18,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 51 transitions, 167 flow [2024-02-02 09:36:18,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 51 transitions, 161 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:36:18,398 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 103 flow [2024-02-02 09:36:18,399 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=103, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-02-02 09:36:18,399 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 0 predicate places. [2024-02-02 09:36:18,399 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 103 flow [2024-02-02 09:36:18,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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) [2024-02-02 09:36:18,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:18,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:36:18,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:36:18,400 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-02-02 09:36:18,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:18,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1245397464, now seen corresponding path program 1 times [2024-02-02 09:36:18,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:18,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671676345] [2024-02-02 09:36:18,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:18,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:18,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:36:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:36:18,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:36:18,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671676345] [2024-02-02 09:36:18,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671676345] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:36:18,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:36:18,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:36:18,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142753785] [2024-02-02 09:36:18,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:36:18,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:36:18,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:36:18,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:36:18,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:36:18,658 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2024-02-02 09:36:18,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 103 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-02-02 09:36:18,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:36:18,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2024-02-02 09:36:18,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:36:18,731 INFO L124 PetriNetUnfolderBase]: 104/326 cut-off events. [2024-02-02 09:36:18,731 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-02-02 09:36:18,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 326 events. 104/326 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1444 event pairs, 14 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 591. Up to 142 conditions per place. [2024-02-02 09:36:18,735 INFO L140 encePairwiseOnDemand]: 44/52 looper letters, 35 selfloop transitions, 4 changer transitions 0/53 dead transitions. [2024-02-02 09:36:18,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 53 transitions, 197 flow [2024-02-02 09:36:18,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:36:18,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:36:18,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 103 transitions. [2024-02-02 09:36:18,738 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4951923076923077 [2024-02-02 09:36:18,738 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 103 flow. Second operand 4 states and 103 transitions. [2024-02-02 09:36:18,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 53 transitions, 197 flow [2024-02-02 09:36:18,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 53 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:36:18,741 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 100 flow [2024-02-02 09:36:18,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=100, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2024-02-02 09:36:18,742 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2024-02-02 09:36:18,742 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 100 flow [2024-02-02 09:36:18,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-02-02 09:36:18,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:18,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:36:18,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:36:18,743 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-02-02 09:36:18,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:18,744 INFO L85 PathProgramCache]: Analyzing trace with hash -808830339, now seen corresponding path program 1 times [2024-02-02 09:36:18,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:18,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72867356] [2024-02-02 09:36:18,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:18,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:18,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:36:18,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:36:18,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:36:18,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72867356] [2024-02-02 09:36:18,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72867356] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:36:18,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:36:18,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:36:18,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443386793] [2024-02-02 09:36:18,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:36:18,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:36:18,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:36:18,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:36:18,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:36:18,856 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 52 [2024-02-02 09:36:18,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 100 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-02-02 09:36:18,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:36:18,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 52 [2024-02-02 09:36:18,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:36:18,926 INFO L124 PetriNetUnfolderBase]: 119/360 cut-off events. [2024-02-02 09:36:18,926 INFO L125 PetriNetUnfolderBase]: For 50/50 co-relation queries the response was YES. [2024-02-02 09:36:18,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 684 conditions, 360 events. 119/360 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1667 event pairs, 56 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 671. Up to 126 conditions per place. [2024-02-02 09:36:18,929 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 34 selfloop transitions, 8 changer transitions 7/64 dead transitions. [2024-02-02 09:36:18,929 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 64 transitions, 250 flow [2024-02-02 09:36:18,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:36:18,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:36:18,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 161 transitions. [2024-02-02 09:36:18,930 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6192307692307693 [2024-02-02 09:36:18,931 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 100 flow. Second operand 5 states and 161 transitions. [2024-02-02 09:36:18,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 64 transitions, 250 flow [2024-02-02 09:36:18,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 64 transitions, 238 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:36:18,932 INFO L231 Difference]: Finished difference. Result has 54 places, 45 transitions, 143 flow [2024-02-02 09:36:18,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=143, PETRI_PLACES=54, PETRI_TRANSITIONS=45} [2024-02-02 09:36:18,934 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2024-02-02 09:36:18,934 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 45 transitions, 143 flow [2024-02-02 09:36:18,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-02-02 09:36:18,934 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:18,934 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:36:18,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:36:18,934 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-02-02 09:36:18,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:18,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1411026869, now seen corresponding path program 1 times [2024-02-02 09:36:18,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:18,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224729664] [2024-02-02 09:36:18,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:18,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:36:18,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:36:18,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:36:18,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224729664] [2024-02-02 09:36:18,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224729664] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:36:18,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:36:18,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:36:18,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332180699] [2024-02-02 09:36:18,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:36:18,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:36:18,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:36:18,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:36:18,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:36:19,021 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 52 [2024-02-02 09:36:19,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 45 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2024-02-02 09:36:19,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:36:19,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 52 [2024-02-02 09:36:19,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:36:19,110 INFO L124 PetriNetUnfolderBase]: 99/295 cut-off events. [2024-02-02 09:36:19,111 INFO L125 PetriNetUnfolderBase]: For 169/182 co-relation queries the response was YES. [2024-02-02 09:36:19,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 674 conditions, 295 events. 99/295 cut-off events. For 169/182 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1204 event pairs, 15 based on Foata normal form. 18/313 useless extension candidates. Maximal degree in co-relation 657. Up to 135 conditions per place. [2024-02-02 09:36:19,112 INFO L140 encePairwiseOnDemand]: 44/52 looper letters, 23 selfloop transitions, 3 changer transitions 14/50 dead transitions. [2024-02-02 09:36:19,112 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 50 transitions, 233 flow [2024-02-02 09:36:19,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:36:19,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:36:19,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2024-02-02 09:36:19,113 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49038461538461536 [2024-02-02 09:36:19,113 INFO L175 Difference]: Start difference. First operand has 54 places, 45 transitions, 143 flow. Second operand 4 states and 102 transitions. [2024-02-02 09:36:19,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 50 transitions, 233 flow [2024-02-02 09:36:19,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 50 transitions, 229 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:36:19,114 INFO L231 Difference]: Finished difference. Result has 51 places, 32 transitions, 95 flow [2024-02-02 09:36:19,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=95, PETRI_PLACES=51, PETRI_TRANSITIONS=32} [2024-02-02 09:36:19,115 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2024-02-02 09:36:19,115 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 32 transitions, 95 flow [2024-02-02 09:36:19,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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) [2024-02-02 09:36:19,115 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:19,115 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:36:19,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:36:19,115 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-02-02 09:36:19,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:19,116 INFO L85 PathProgramCache]: Analyzing trace with hash 633960501, now seen corresponding path program 1 times [2024-02-02 09:36:19,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:19,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19619624] [2024-02-02 09:36:19,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:19,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:36:19,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:36:19,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:36:19,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19619624] [2024-02-02 09:36:19,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19619624] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:36:19,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:36:19,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:36:19,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109886457] [2024-02-02 09:36:19,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:36:19,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:36:19,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:36:19,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:36:19,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:36:19,255 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 52 [2024-02-02 09:36:19,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 32 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2024-02-02 09:36:19,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:36:19,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 52 [2024-02-02 09:36:19,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:36:19,291 INFO L124 PetriNetUnfolderBase]: 12/67 cut-off events. [2024-02-02 09:36:19,292 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-02-02 09:36:19,292 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 67 events. 12/67 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 5 based on Foata normal form. 7/69 useless extension candidates. Maximal degree in co-relation 127. Up to 22 conditions per place. [2024-02-02 09:36:19,292 INFO L140 encePairwiseOnDemand]: 46/52 looper letters, 7 selfloop transitions, 4 changer transitions 14/36 dead transitions. [2024-02-02 09:36:19,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 36 transitions, 141 flow [2024-02-02 09:36:19,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:36:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:36:19,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-02-02 09:36:19,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7019230769230769 [2024-02-02 09:36:19,294 INFO L175 Difference]: Start difference. First operand has 51 places, 32 transitions, 95 flow. Second operand 4 states and 146 transitions. [2024-02-02 09:36:19,294 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 36 transitions, 141 flow [2024-02-02 09:36:19,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 36 transitions, 119 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-02-02 09:36:19,295 INFO L231 Difference]: Finished difference. Result has 41 places, 21 transitions, 57 flow [2024-02-02 09:36:19,296 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=57, PETRI_PLACES=41, PETRI_TRANSITIONS=21} [2024-02-02 09:36:19,296 INFO L281 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2024-02-02 09:36:19,297 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 21 transitions, 57 flow [2024-02-02 09:36:19,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 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) [2024-02-02 09:36:19,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:36:19,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:36:19,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 09:36:19,298 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2024-02-02 09:36:19,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:36:19,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1747438276, now seen corresponding path program 1 times [2024-02-02 09:36:19,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:36:19,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189050132] [2024-02-02 09:36:19,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:36:19,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:36:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:36:19,319 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-02-02 09:36:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-02-02 09:36:19,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-02-02 09:36:19,374 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-02-02 09:36:19,375 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (22 of 23 remaining) [2024-02-02 09:36:19,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 23 remaining) [2024-02-02 09:36:19,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 23 remaining) [2024-02-02 09:36:19,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 23 remaining) [2024-02-02 09:36:19,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 23 remaining) [2024-02-02 09:36:19,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 23 remaining) [2024-02-02 09:36:19,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 23 remaining) [2024-02-02 09:36:19,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 23 remaining) [2024-02-02 09:36:19,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 23 remaining) [2024-02-02 09:36:19,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 23 remaining) [2024-02-02 09:36:19,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 23 remaining) [2024-02-02 09:36:19,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 23 remaining) [2024-02-02 09:36:19,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 23 remaining) [2024-02-02 09:36:19,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 23 remaining) [2024-02-02 09:36:19,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 23 remaining) [2024-02-02 09:36:19,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 23 remaining) [2024-02-02 09:36:19,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 23 remaining) [2024-02-02 09:36:19,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 23 remaining) [2024-02-02 09:36:19,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 23 remaining) [2024-02-02 09:36:19,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 23 remaining) [2024-02-02 09:36:19,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 23 remaining) [2024-02-02 09:36:19,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 23 remaining) [2024-02-02 09:36:19,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 23 remaining) [2024-02-02 09:36:19,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-02 09:36:19,379 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:36:19,383 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:36:19,383 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:36:19,407 INFO L503 ceAbstractionStarter]: Automizer considered 12 witness invariants [2024-02-02 09:36:19,407 INFO L504 ceAbstractionStarter]: WitnessConsidered=12 [2024-02-02 09:36:19,408 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:36:19 BasicIcfg [2024-02-02 09:36:19,408 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:36:19,410 INFO L158 Benchmark]: Toolchain (without parser) took 2963.59ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 85.2MB in the beginning and 93.1MB in the end (delta: -7.9MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2024-02-02 09:36:19,410 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 100.7MB. Free memory was 65.7MB in the beginning and 65.6MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:36:19,410 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 138.4MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:36:19,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.15ms. Allocated memory is still 138.4MB. Free memory was 85.2MB in the beginning and 98.1MB in the end (delta: -12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-02-02 09:36:19,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.11ms. Allocated memory is still 138.4MB. Free memory was 98.1MB in the beginning and 96.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:36:19,411 INFO L158 Benchmark]: Boogie Preprocessor took 48.68ms. Allocated memory is still 138.4MB. Free memory was 96.0MB in the beginning and 93.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:36:19,411 INFO L158 Benchmark]: RCFGBuilder took 456.45ms. Allocated memory is still 138.4MB. Free memory was 93.9MB in the beginning and 64.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-02-02 09:36:19,411 INFO L158 Benchmark]: TraceAbstraction took 1897.70ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 63.6MB in the beginning and 93.1MB in the end (delta: -29.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-02-02 09:36:19,413 INFO L338 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 100.7MB. Free memory was 65.7MB in the beginning and 65.6MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 138.4MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.15ms. Allocated memory is still 138.4MB. Free memory was 85.2MB in the beginning and 98.1MB in the end (delta: -12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.11ms. Allocated memory is still 138.4MB. Free memory was 98.1MB in the beginning and 96.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.68ms. Allocated memory is still 138.4MB. Free memory was 96.0MB in the beginning and 93.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.45ms. Allocated memory is still 138.4MB. Free memory was 93.9MB in the beginning and 64.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1897.70ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 63.6MB in the beginning and 93.1MB in the end (delta: -29.5MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * 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: [L681] 0 int glob1 = 0; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L696] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L697] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]]]] [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob1=0, id={5:0}, mutex1={3:0}, mutex2={4:0}] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, mutex2={4:0}] [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[5]]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[glob1],IntegerLiteral[5]],IntegerLiteral[0]]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[5]]]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, mutex2={4:0}] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[5]]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[glob1],IntegerLiteral[5]],IntegerLiteral[0]]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[5]]]]]] [L687] 1 glob1 = 5 VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[5]],BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]]] VAL [arg={0:0}, arg={0:0}, glob1=5, mutex1={3:0}, mutex2={4:0}] [L699] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[5]]],BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[127]]],BinaryExpression[COMPEQ,BinaryExpression[ARITHMOD,IdentifierExpression[glob1],IntegerLiteral[5]],IntegerLiteral[0]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[5]]]]]] [L699] CALL 0 __VERIFIER_assert(glob1 == 0) [L19] COND TRUE 0 !(cond) VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] [L19] 0 reach_error() VAL [\old(cond)=0, arg={0:0}, arg={0:0}, cond=0, glob1=5, mutex1={3:0}, mutex2={4:0}] - UnprovableResult [Line: 697]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 23 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: 1.8s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 371 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 252 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 419 IncrementalHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 14 mSDtfsCounter, 419 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=143occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 0.6s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 255 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2024-02-02 09:36:19,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE