./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.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_25-struct_nr_true.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_25-struct_nr_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_25-struct_nr_true.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 09:17:35,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:17:35,825 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:17:35,830 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:17:35,831 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:17:35,855 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:17:35,855 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:17:35,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:17:35,856 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:17:35,859 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:17:35,859 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:17:35,859 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:17:35,860 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:17:35,861 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:17:35,861 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:17:35,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:17:35,862 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:17:35,862 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:17:35,862 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:17:35,862 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:17:35,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:17:35,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:17:35,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:17:35,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:17:35,863 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:17:35,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:17:35,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:17:35,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:17:35,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:17:35,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:17:35,866 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:17:35,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:17:35,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:35,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:17:35,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:17:35,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:17:35,867 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:17:35,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:17:35,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:17:35,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:17:35,867 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:17:35,868 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:17:35,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:17:35,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:17:36,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:17:36,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:17:36,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:17:36,103 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:17:36,103 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:17:36,113 INFO L431 ainManager$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_25-struct_nr_true.yml/witness.yml [2024-02-02 09:17:36,232 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:17:36,232 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:17:36,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2024-02-02 09:17:37,186 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:17:37,432 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:17:37,437 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2024-02-02 09:17:37,453 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99ee8f442/1c7e5ee031474abaac24d1e9a6bf7bf5/FLAG8b1aa6f9a [2024-02-02 09:17:37,493 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99ee8f442/1c7e5ee031474abaac24d1e9a6bf7bf5 [2024-02-02 09:17:37,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:17:37,495 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:17:37,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:37,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:17:37,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:17:37,501 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:36" (1/2) ... [2024-02-02 09:17:37,502 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ac0986 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:37, skipping insertion in model container [2024-02-02 09:17:37,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:36" (1/2) ... [2024-02-02 09:17:37,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2bda86d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:37, skipping insertion in model container [2024-02-02 09:17:37,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:37" (2/2) ... [2024-02-02 09:17:37,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ac0986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:37, skipping insertion in model container [2024-02-02 09:17:37,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:37" (2/2) ... [2024-02-02 09:17:37,505 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:17:37,541 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:17:37,542 INFO L101 nessWitnessExtractor]: Location invariant before [L693-L693] ((glob1 == -10) && (t == 5)) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:37,542 INFO L101 nessWitnessExtractor]: Location invariant before [L690-L690] ((glob1 == 5) && (t == 5)) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:37,542 INFO L101 nessWitnessExtractor]: Location invariant before [L704-L704] glob1 == 6 [2024-02-02 09:17:37,542 INFO L101 nessWitnessExtractor]: Location invariant before [L702-L702] glob1 == 5 [2024-02-02 09:17:37,542 INFO L101 nessWitnessExtractor]: Location invariant before [L699-L699] glob1 == 5 [2024-02-02 09:17:37,543 INFO L101 nessWitnessExtractor]: Location invariant before [L705-L705] glob1 == 5 [2024-02-02 09:17:37,543 INFO L101 nessWitnessExtractor]: Location invariant before [L691-L691] ((glob1 == 5) && (t == 5)) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:37,543 INFO L101 nessWitnessExtractor]: Location invariant before [L694-L694] (((((0LL - (long long )glob1) + (long long )t >= 0LL) && ((long long )glob1 - (long long )t >= 0LL)) && (glob1 == 5)) && (t == 5)) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:37,543 INFO L101 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-02-02 09:17:37,543 INFO L101 nessWitnessExtractor]: Location invariant before [L689-L689] (glob1 == 5) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:37,543 INFO L101 nessWitnessExtractor]: Location invariant before [L692-L692] ((glob1 == -10) && (t == 5)) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:37,543 INFO L101 nessWitnessExtractor]: Location invariant before [L703-L703] glob1 == 6 [2024-02-02 09:17:37,544 INFO L101 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 5 [2024-02-02 09:17:37,544 INFO L101 nessWitnessExtractor]: Location invariant before [L695-L695] (t == 5) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:37,544 INFO L101 nessWitnessExtractor]: Location invariant before [L19-L19] ((glob1 == 5 || glob1 == 6) || ((((((-128 <= glob1 && -10 <= glob1) && glob1 <= 5) && glob1 <= 127) && glob1 % 15 == 5) && glob1 != 0) && (glob1 == -10 || glob1 == 5))) && ((glob1 == 5 || glob1 == 6) || ((((((-128 <= glob1 && -10 <= glob1) && glob1 <= 5) && glob1 <= 127) && glob1 % 15 == 5) && glob1 != 0) && (glob1 == -10 || glob1 == 5))) [2024-02-02 09:17:37,580 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:17:37,729 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_25-struct_nr_true.i[1086,1099] [2024-02-02 09:17:37,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:37,890 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:17:37,903 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_25-struct_nr_true.i[1086,1099] [2024-02-02 09:17:37,904 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 Start Parsing Local Start Parsing Local [2024-02-02 09:17:37,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:38,021 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:17:38,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38 WrapperNode [2024-02-02 09:17:38,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:38,023 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:38,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:17:38,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:17:38,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,087 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 95 [2024-02-02 09:17:38,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:38,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:17:38,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:17:38,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:17:38,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,109 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,133 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 2, 5]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5]. The 1 writes are split as follows [0, 1, 0]. [2024-02-02 09:17:38,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,134 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,150 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:17:38,160 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:17:38,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:17:38,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:17:38,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (1/1) ... [2024-02-02 09:17:38,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:38,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:17:38,214 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 09:17:38,229 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 09:17:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:17:38,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:17:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:17:38,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:17:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:17:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:17:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-02 09:17:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:17:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:17:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-02 09:17:38,259 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-02 09:17:38,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:17:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:17:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:17:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:17:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-02 09:17:38,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:17:38,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:17:38,262 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 09:17:38,387 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:17:38,390 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:17:38,560 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:17:38,560 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:17:38,666 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:17:38,666 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-02 09:17:38,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:38 BoogieIcfgContainer [2024-02-02 09:17:38,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:17:38,669 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:17:38,669 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:17:38,672 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:17:38,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:36" (1/4) ... [2024-02-02 09:17:38,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7e763e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:17:38, skipping insertion in model container [2024-02-02 09:17:38,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:17:37" (2/4) ... [2024-02-02 09:17:38,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7e763e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:17:38, skipping insertion in model container [2024-02-02 09:17:38,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:38" (3/4) ... [2024-02-02 09:17:38,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7e763e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:17:38, skipping insertion in model container [2024-02-02 09:17:38,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:38" (4/4) ... [2024-02-02 09:17:38,674 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2024-02-02 09:17:38,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:17:38,687 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-02-02 09:17:38,687 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:17:38,783 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-02-02 09:17:38,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 63 transitions, 133 flow [2024-02-02 09:17:38,879 INFO L124 PetriNetUnfolderBase]: 4/62 cut-off events. [2024-02-02 09:17:38,879 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-02 09:17:38,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 62 events. 4/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-02-02 09:17:38,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 63 transitions, 133 flow [2024-02-02 09:17:38,889 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 60 transitions, 123 flow [2024-02-02 09:17:38,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:17:38,905 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;@52107eb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:17:38,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-02-02 09:17:38,912 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:17:38,912 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:17:38,913 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:17:38,913 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:38,913 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:17:38,914 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-02-02 09:17:38,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:38,919 INFO L85 PathProgramCache]: Analyzing trace with hash 8923, now seen corresponding path program 1 times [2024-02-02 09:17:38,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:38,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126411488] [2024-02-02 09:17:38,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:38,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:39,104 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 09:17:39,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:39,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126411488] [2024-02-02 09:17:39,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126411488] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:39,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:39,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:17:39,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655612664] [2024-02-02 09:17:39,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:39,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:17:39,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:39,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:17:39,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:17:39,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 63 [2024-02-02 09:17:39,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 60 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 09:17:39,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:39,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 63 [2024-02-02 09:17:39,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:39,324 INFO L124 PetriNetUnfolderBase]: 117/480 cut-off events. [2024-02-02 09:17:39,324 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:17:39,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 480 events. 117/480 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2803 event pairs, 64 based on Foata normal form. 72/514 useless extension candidates. Maximal degree in co-relation 765. Up to 189 conditions per place. [2024-02-02 09:17:39,329 INFO L140 encePairwiseOnDemand]: 44/63 looper letters, 36 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2024-02-02 09:17:39,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 71 transitions, 235 flow [2024-02-02 09:17:39,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:17:39,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:17:39,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-02-02 09:17:39,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.746031746031746 [2024-02-02 09:17:39,342 INFO L175 Difference]: Start difference. First operand has 60 places, 60 transitions, 123 flow. Second operand 3 states and 141 transitions. [2024-02-02 09:17:39,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 71 transitions, 235 flow [2024-02-02 09:17:39,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:17:39,351 INFO L231 Difference]: Finished difference. Result has 61 places, 60 transitions, 178 flow [2024-02-02 09:17:39,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=178, PETRI_PLACES=61, PETRI_TRANSITIONS=60} [2024-02-02 09:17:39,356 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 1 predicate places. [2024-02-02 09:17:39,357 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 60 transitions, 178 flow [2024-02-02 09:17:39,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 09:17:39,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:39,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:17:39,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:17:39,358 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-02-02 09:17:39,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:39,359 INFO L85 PathProgramCache]: Analyzing trace with hash 8583594, now seen corresponding path program 1 times [2024-02-02 09:17:39,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:39,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416884467] [2024-02-02 09:17:39,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:39,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:39,439 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 09:17:39,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:39,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416884467] [2024-02-02 09:17:39,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416884467] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:39,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:39,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:39,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850405443] [2024-02-02 09:17:39,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:39,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:39,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:39,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:39,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:39,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 63 [2024-02-02 09:17:39,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 178 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 09:17:39,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:39,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 63 [2024-02-02 09:17:39,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:39,612 INFO L124 PetriNetUnfolderBase]: 135/489 cut-off events. [2024-02-02 09:17:39,612 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2024-02-02 09:17:39,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1041 conditions, 489 events. 135/489 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2788 event pairs, 61 based on Foata normal form. 0/465 useless extension candidates. Maximal degree in co-relation 1021. Up to 179 conditions per place. [2024-02-02 09:17:39,616 INFO L140 encePairwiseOnDemand]: 48/63 looper letters, 47 selfloop transitions, 19 changer transitions 0/86 dead transitions. [2024-02-02 09:17:39,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 86 transitions, 390 flow [2024-02-02 09:17:39,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:39,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 184 transitions. [2024-02-02 09:17:39,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5841269841269842 [2024-02-02 09:17:39,618 INFO L175 Difference]: Start difference. First operand has 61 places, 60 transitions, 178 flow. Second operand 5 states and 184 transitions. [2024-02-02 09:17:39,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 86 transitions, 390 flow [2024-02-02 09:17:39,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 86 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:39,621 INFO L231 Difference]: Finished difference. Result has 59 places, 62 transitions, 212 flow [2024-02-02 09:17:39,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=59, PETRI_TRANSITIONS=62} [2024-02-02 09:17:39,622 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -1 predicate places. [2024-02-02 09:17:39,622 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 62 transitions, 212 flow [2024-02-02 09:17:39,622 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 09:17:39,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:39,622 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:39,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:17:39,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-02-02 09:17:39,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:39,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1321972281, now seen corresponding path program 1 times [2024-02-02 09:17:39,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:39,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352102330] [2024-02-02 09:17:39,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:39,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:39,718 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 09:17:39,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:39,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352102330] [2024-02-02 09:17:39,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352102330] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:39,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:39,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:39,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572908423] [2024-02-02 09:17:39,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:39,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:39,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:39,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:39,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:39,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 63 [2024-02-02 09:17:39,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 62 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 09:17:39,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:39,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 63 [2024-02-02 09:17:39,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:39,811 INFO L124 PetriNetUnfolderBase]: 104/465 cut-off events. [2024-02-02 09:17:39,811 INFO L125 PetriNetUnfolderBase]: For 118/119 co-relation queries the response was YES. [2024-02-02 09:17:39,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 942 conditions, 465 events. 104/465 cut-off events. For 118/119 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2788 event pairs, 18 based on Foata normal form. 9/450 useless extension candidates. Maximal degree in co-relation 921. Up to 238 conditions per place. [2024-02-02 09:17:39,814 INFO L140 encePairwiseOnDemand]: 60/63 looper letters, 39 selfloop transitions, 2 changer transitions 0/69 dead transitions. [2024-02-02 09:17:39,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 69 transitions, 322 flow [2024-02-02 09:17:39,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:39,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:39,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions. [2024-02-02 09:17:39,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-02-02 09:17:39,816 INFO L175 Difference]: Start difference. First operand has 59 places, 62 transitions, 212 flow. Second operand 4 states and 161 transitions. [2024-02-02 09:17:39,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 69 transitions, 322 flow [2024-02-02 09:17:39,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 69 transitions, 322 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-02 09:17:39,818 INFO L231 Difference]: Finished difference. Result has 61 places, 61 transitions, 214 flow [2024-02-02 09:17:39,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=61, PETRI_TRANSITIONS=61} [2024-02-02 09:17:39,818 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 1 predicate places. [2024-02-02 09:17:39,819 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 61 transitions, 214 flow [2024-02-02 09:17:39,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 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 09:17:39,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:39,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:39,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:17:39,819 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-02-02 09:17:39,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:39,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1918357365, now seen corresponding path program 1 times [2024-02-02 09:17:39,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:39,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516647254] [2024-02-02 09:17:39,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:39,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:39,882 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 09:17:39,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:39,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516647254] [2024-02-02 09:17:39,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516647254] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:39,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:39,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:17:39,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863052433] [2024-02-02 09:17:39,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:39,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:39,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:39,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:39,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:39,907 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 63 [2024-02-02 09:17:39,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 61 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 09:17:39,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:39,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 63 [2024-02-02 09:17:39,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:39,981 INFO L124 PetriNetUnfolderBase]: 95/357 cut-off events. [2024-02-02 09:17:39,981 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-02-02 09:17:39,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 811 conditions, 357 events. 95/357 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1778 event pairs, 58 based on Foata normal form. 44/385 useless extension candidates. Maximal degree in co-relation 788. Up to 155 conditions per place. [2024-02-02 09:17:39,983 INFO L140 encePairwiseOnDemand]: 51/63 looper letters, 33 selfloop transitions, 7 changer transitions 1/60 dead transitions. [2024-02-02 09:17:39,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 60 transitions, 260 flow [2024-02-02 09:17:39,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:39,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:39,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 149 transitions. [2024-02-02 09:17:39,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5912698412698413 [2024-02-02 09:17:39,985 INFO L175 Difference]: Start difference. First operand has 61 places, 61 transitions, 214 flow. Second operand 4 states and 149 transitions. [2024-02-02 09:17:39,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 60 transitions, 260 flow [2024-02-02 09:17:39,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 60 transitions, 250 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-02-02 09:17:39,991 INFO L231 Difference]: Finished difference. Result has 59 places, 49 transitions, 164 flow [2024-02-02 09:17:39,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=164, PETRI_PLACES=59, PETRI_TRANSITIONS=49} [2024-02-02 09:17:39,992 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -1 predicate places. [2024-02-02 09:17:39,992 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 49 transitions, 164 flow [2024-02-02 09:17:39,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 09:17:39,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:39,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:39,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:17:39,993 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-02-02 09:17:39,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:39,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1974191892, now seen corresponding path program 1 times [2024-02-02 09:17:39,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:39,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53070026] [2024-02-02 09:17:39,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:39,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:40,050 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 09:17:40,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:40,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53070026] [2024-02-02 09:17:40,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53070026] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:40,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:40,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:17:40,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597821914] [2024-02-02 09:17:40,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:40,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:40,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:40,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:40,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:40,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 63 [2024-02-02 09:17:40,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 49 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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 09:17:40,076 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:40,076 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 63 [2024-02-02 09:17:40,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:40,154 INFO L124 PetriNetUnfolderBase]: 133/467 cut-off events. [2024-02-02 09:17:40,155 INFO L125 PetriNetUnfolderBase]: For 212/212 co-relation queries the response was YES. [2024-02-02 09:17:40,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 467 events. 133/467 cut-off events. For 212/212 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2571 event pairs, 15 based on Foata normal form. 7/460 useless extension candidates. Maximal degree in co-relation 1078. Up to 132 conditions per place. [2024-02-02 09:17:40,157 INFO L140 encePairwiseOnDemand]: 51/63 looper letters, 44 selfloop transitions, 12 changer transitions 2/75 dead transitions. [2024-02-02 09:17:40,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 75 transitions, 354 flow [2024-02-02 09:17:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:40,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:40,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 155 transitions. [2024-02-02 09:17:40,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6150793650793651 [2024-02-02 09:17:40,158 INFO L175 Difference]: Start difference. First operand has 59 places, 49 transitions, 164 flow. Second operand 4 states and 155 transitions. [2024-02-02 09:17:40,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 75 transitions, 354 flow [2024-02-02 09:17:40,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 75 transitions, 332 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:17:40,161 INFO L231 Difference]: Finished difference. Result has 61 places, 55 transitions, 225 flow [2024-02-02 09:17:40,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2024-02-02 09:17:40,163 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 1 predicate places. [2024-02-02 09:17:40,163 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 225 flow [2024-02-02 09:17:40,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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 09:17:40,164 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:40,164 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:40,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:17:40,164 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-02-02 09:17:40,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:40,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1070406826, now seen corresponding path program 1 times [2024-02-02 09:17:40,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:40,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510296808] [2024-02-02 09:17:40,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:40,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:40,266 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 09:17:40,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:40,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510296808] [2024-02-02 09:17:40,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510296808] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:40,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:40,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:40,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890267175] [2024-02-02 09:17:40,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:40,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:40,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:40,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:40,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:40,300 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 63 [2024-02-02 09:17:40,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 09:17:40,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:40,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 63 [2024-02-02 09:17:40,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:40,393 INFO L124 PetriNetUnfolderBase]: 153/483 cut-off events. [2024-02-02 09:17:40,394 INFO L125 PetriNetUnfolderBase]: For 395/397 co-relation queries the response was YES. [2024-02-02 09:17:40,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1263 conditions, 483 events. 153/483 cut-off events. For 395/397 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2596 event pairs, 23 based on Foata normal form. 34/503 useless extension candidates. Maximal degree in co-relation 1238. Up to 136 conditions per place. [2024-02-02 09:17:40,396 INFO L140 encePairwiseOnDemand]: 49/63 looper letters, 56 selfloop transitions, 13 changer transitions 2/84 dead transitions. [2024-02-02 09:17:40,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 84 transitions, 441 flow [2024-02-02 09:17:40,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:40,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:40,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2024-02-02 09:17:40,397 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-02-02 09:17:40,398 INFO L175 Difference]: Start difference. First operand has 61 places, 55 transitions, 225 flow. Second operand 5 states and 175 transitions. [2024-02-02 09:17:40,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 84 transitions, 441 flow [2024-02-02 09:17:40,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 84 transitions, 432 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:17:40,400 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 257 flow [2024-02-02 09:17:40,400 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=257, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-02-02 09:17:40,401 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 5 predicate places. [2024-02-02 09:17:40,401 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 257 flow [2024-02-02 09:17:40,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 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 09:17:40,401 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:40,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:40,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 09:17:40,402 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-02-02 09:17:40,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:40,402 INFO L85 PathProgramCache]: Analyzing trace with hash -2131181043, now seen corresponding path program 1 times [2024-02-02 09:17:40,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:40,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506407900] [2024-02-02 09:17:40,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:40,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:40,433 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 09:17:40,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:40,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506407900] [2024-02-02 09:17:40,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506407900] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:40,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:40,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:40,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154266468] [2024-02-02 09:17:40,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:40,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:17:40,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:40,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:17:40,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:17:40,443 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 63 [2024-02-02 09:17:40,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 09:17:40,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:40,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 63 [2024-02-02 09:17:40,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:40,505 INFO L124 PetriNetUnfolderBase]: 118/396 cut-off events. [2024-02-02 09:17:40,505 INFO L125 PetriNetUnfolderBase]: For 621/630 co-relation queries the response was YES. [2024-02-02 09:17:40,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1102 conditions, 396 events. 118/396 cut-off events. For 621/630 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1897 event pairs, 73 based on Foata normal form. 0/386 useless extension candidates. Maximal degree in co-relation 1075. Up to 219 conditions per place. [2024-02-02 09:17:40,507 INFO L140 encePairwiseOnDemand]: 57/63 looper letters, 36 selfloop transitions, 5 changer transitions 0/60 dead transitions. [2024-02-02 09:17:40,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 60 transitions, 370 flow [2024-02-02 09:17:40,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:17:40,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:17:40,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2024-02-02 09:17:40,509 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6507936507936508 [2024-02-02 09:17:40,509 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 257 flow. Second operand 3 states and 123 transitions. [2024-02-02 09:17:40,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 60 transitions, 370 flow [2024-02-02 09:17:40,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 60 transitions, 340 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-02-02 09:17:40,511 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 233 flow [2024-02-02 09:17:40,512 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2024-02-02 09:17:40,512 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 0 predicate places. [2024-02-02 09:17:40,512 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 233 flow [2024-02-02 09:17:40,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 09:17:40,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:40,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:40,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-02 09:17:40,513 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-02-02 09:17:40,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:40,514 INFO L85 PathProgramCache]: Analyzing trace with hash -692771067, now seen corresponding path program 1 times [2024-02-02 09:17:40,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:40,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906428211] [2024-02-02 09:17:40,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:40,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:40,550 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 09:17:40,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:40,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906428211] [2024-02-02 09:17:40,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906428211] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:40,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:40,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:40,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70511683] [2024-02-02 09:17:40,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:40,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:17:40,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:40,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:17:40,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:17:40,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 63 [2024-02-02 09:17:40,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 09:17:40,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:40,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 63 [2024-02-02 09:17:40,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:40,593 INFO L124 PetriNetUnfolderBase]: 36/170 cut-off events. [2024-02-02 09:17:40,593 INFO L125 PetriNetUnfolderBase]: For 162/162 co-relation queries the response was YES. [2024-02-02 09:17:40,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 450 conditions, 170 events. 36/170 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 540 event pairs, 7 based on Foata normal form. 14/183 useless extension candidates. Maximal degree in co-relation 424. Up to 86 conditions per place. [2024-02-02 09:17:40,594 INFO L140 encePairwiseOnDemand]: 59/63 looper letters, 25 selfloop transitions, 4 changer transitions 2/46 dead transitions. [2024-02-02 09:17:40,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 46 transitions, 253 flow [2024-02-02 09:17:40,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:17:40,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:17:40,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2024-02-02 09:17:40,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6825396825396826 [2024-02-02 09:17:40,596 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 233 flow. Second operand 3 states and 129 transitions. [2024-02-02 09:17:40,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 46 transitions, 253 flow [2024-02-02 09:17:40,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 197 flow, removed 9 selfloop flow, removed 7 redundant places. [2024-02-02 09:17:40,597 INFO L231 Difference]: Finished difference. Result has 50 places, 41 transitions, 128 flow [2024-02-02 09:17:40,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=50, PETRI_TRANSITIONS=41} [2024-02-02 09:17:40,598 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -10 predicate places. [2024-02-02 09:17:40,598 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 41 transitions, 128 flow [2024-02-02 09:17:40,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 09:17:40,599 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:40,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:40,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-02 09:17:40,599 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-02-02 09:17:40,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:40,599 INFO L85 PathProgramCache]: Analyzing trace with hash 634459023, now seen corresponding path program 1 times [2024-02-02 09:17:40,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:40,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542948323] [2024-02-02 09:17:40,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:40,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:40,653 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 09:17:40,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:40,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542948323] [2024-02-02 09:17:40,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542948323] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:40,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:40,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:17:40,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805992752] [2024-02-02 09:17:40,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:40,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:40,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:40,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:40,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:40,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 63 [2024-02-02 09:17:40,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 41 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 09:17:40,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:40,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 63 [2024-02-02 09:17:40,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:40,777 INFO L124 PetriNetUnfolderBase]: 40/154 cut-off events. [2024-02-02 09:17:40,777 INFO L125 PetriNetUnfolderBase]: For 59/61 co-relation queries the response was YES. [2024-02-02 09:17:40,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 154 events. 40/154 cut-off events. For 59/61 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 416 event pairs, 10 based on Foata normal form. 13/167 useless extension candidates. Maximal degree in co-relation 347. Up to 46 conditions per place. [2024-02-02 09:17:40,778 INFO L140 encePairwiseOnDemand]: 56/63 looper letters, 21 selfloop transitions, 2 changer transitions 28/56 dead transitions. [2024-02-02 09:17:40,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 56 transitions, 264 flow [2024-02-02 09:17:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:40,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:40,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 179 transitions. [2024-02-02 09:17:40,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5682539682539682 [2024-02-02 09:17:40,779 INFO L175 Difference]: Start difference. First operand has 50 places, 41 transitions, 128 flow. Second operand 5 states and 179 transitions. [2024-02-02 09:17:40,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 56 transitions, 264 flow [2024-02-02 09:17:40,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 56 transitions, 251 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:40,781 INFO L231 Difference]: Finished difference. Result has 48 places, 24 transitions, 74 flow [2024-02-02 09:17:40,781 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=74, PETRI_PLACES=48, PETRI_TRANSITIONS=24} [2024-02-02 09:17:40,781 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -12 predicate places. [2024-02-02 09:17:40,781 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 24 transitions, 74 flow [2024-02-02 09:17:40,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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 09:17:40,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:40,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:40,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-02 09:17:40,782 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 26 more)] === [2024-02-02 09:17:40,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:40,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1276532177, now seen corresponding path program 1 times [2024-02-02 09:17:40,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:40,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885643821] [2024-02-02 09:17:40,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:40,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:40,818 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 09:17:40,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:40,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885643821] [2024-02-02 09:17:40,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885643821] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:40,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:40,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:40,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735085427] [2024-02-02 09:17:40,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:40,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:40,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:40,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:40,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:40,845 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 63 [2024-02-02 09:17:40,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 24 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 09:17:40,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:40,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 63 [2024-02-02 09:17:40,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:40,882 INFO L124 PetriNetUnfolderBase]: 20/83 cut-off events. [2024-02-02 09:17:40,882 INFO L125 PetriNetUnfolderBase]: For 49/51 co-relation queries the response was YES. [2024-02-02 09:17:40,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 83 events. 20/83 cut-off events. For 49/51 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 202 event pairs, 11 based on Foata normal form. 4/87 useless extension candidates. Maximal degree in co-relation 189. Up to 34 conditions per place. [2024-02-02 09:17:40,883 INFO L140 encePairwiseOnDemand]: 59/63 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2024-02-02 09:17:40,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 162 flow [2024-02-02 09:17:40,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:40,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 127 transitions. [2024-02-02 09:17:40,884 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.503968253968254 [2024-02-02 09:17:40,884 INFO L175 Difference]: Start difference. First operand has 48 places, 24 transitions, 74 flow. Second operand 4 states and 127 transitions. [2024-02-02 09:17:40,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 162 flow [2024-02-02 09:17:40,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 35 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:40,885 INFO L231 Difference]: Finished difference. Result has 33 places, 0 transitions, 0 flow [2024-02-02 09:17:40,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=33, PETRI_TRANSITIONS=0} [2024-02-02 09:17:40,885 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -27 predicate places. [2024-02-02 09:17:40,885 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 0 transitions, 0 flow [2024-02-02 09:17:40,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 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 09:17:40,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 29 remaining) [2024-02-02 09:17:40,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (27 of 29 remaining) [2024-02-02 09:17:40,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 29 remaining) [2024-02-02 09:17:40,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 29 remaining) [2024-02-02 09:17:40,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 29 remaining) [2024-02-02 09:17:40,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (23 of 29 remaining) [2024-02-02 09:17:40,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 29 remaining) [2024-02-02 09:17:40,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 29 remaining) [2024-02-02 09:17:40,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 29 remaining) [2024-02-02 09:17:40,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 29 remaining) [2024-02-02 09:17:40,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 29 remaining) [2024-02-02 09:17:40,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 29 remaining) [2024-02-02 09:17:40,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONERROR_FUNCTION (16 of 29 remaining) [2024-02-02 09:17:40,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 29 remaining) [2024-02-02 09:17:40,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 29 remaining) [2024-02-02 09:17:40,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (13 of 29 remaining) [2024-02-02 09:17:40,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 29 remaining) [2024-02-02 09:17:40,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 29 remaining) [2024-02-02 09:17:40,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 29 remaining) [2024-02-02 09:17:40,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 29 remaining) [2024-02-02 09:17:40,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 29 remaining) [2024-02-02 09:17:40,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 29 remaining) [2024-02-02 09:17:40,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONERROR_FUNCTION (6 of 29 remaining) [2024-02-02 09:17:40,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 29 remaining) [2024-02-02 09:17:40,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 29 remaining) [2024-02-02 09:17:40,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (3 of 29 remaining) [2024-02-02 09:17:40,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 29 remaining) [2024-02-02 09:17:40,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 29 remaining) [2024-02-02 09:17:40,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 29 remaining) [2024-02-02 09:17:40,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-02-02 09:17:40,892 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:40,896 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:17:40,896 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:17:40,899 INFO L503 ceAbstractionStarter]: Automizer considered 14 witness invariants [2024-02-02 09:17:40,900 INFO L504 ceAbstractionStarter]: WitnessConsidered=14 [2024-02-02 09:17:40,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:17:40 BasicIcfg [2024-02-02 09:17:40,901 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:17:40,901 INFO L158 Benchmark]: Toolchain (without parser) took 3406.60ms. Allocated memory was 167.8MB in the beginning and 239.1MB in the end (delta: 71.3MB). Free memory was 139.8MB in the beginning and 108.3MB in the end (delta: 31.4MB). Peak memory consumption was 101.3MB. Max. memory is 16.1GB. [2024-02-02 09:17:40,901 INFO L158 Benchmark]: Witness Parser took 15.26ms. Allocated memory is still 121.6MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:17:40,901 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:17:40,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 525.50ms. Allocated memory is still 167.8MB. Free memory was 139.8MB in the beginning and 116.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:40,902 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.84ms. Allocated memory is still 167.8MB. Free memory was 116.1MB in the beginning and 113.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:40,902 INFO L158 Benchmark]: Boogie Preprocessor took 71.34ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 111.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:40,902 INFO L158 Benchmark]: RCFGBuilder took 507.64ms. Allocated memory is still 167.8MB. Free memory was 111.9MB in the beginning and 86.1MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-02-02 09:17:40,903 INFO L158 Benchmark]: TraceAbstraction took 2231.38ms. Allocated memory was 167.8MB in the beginning and 239.1MB in the end (delta: 71.3MB). Free memory was 85.9MB in the beginning and 108.3MB in the end (delta: -22.4MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2024-02-02 09:17:40,904 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 15.26ms. Allocated memory is still 121.6MB. Free memory is still 71.7MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 525.50ms. Allocated memory is still 167.8MB. Free memory was 139.8MB in the beginning and 116.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.84ms. Allocated memory is still 167.8MB. Free memory was 116.1MB in the beginning and 113.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.34ms. Allocated memory is still 167.8MB. Free memory was 113.9MB in the beginning and 111.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.64ms. Allocated memory is still 167.8MB. Free memory was 111.9MB in the beginning and 86.1MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2231.38ms. Allocated memory was 167.8MB in the beginning and 239.1MB in the end (delta: 71.3MB). Free memory was 85.9MB in the beginning and 108.3MB in the end (delta: -22.4MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 703]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 704]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 91 locations, 29 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 588 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 409 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 95 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 957 IncrementalHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 95 mSolverCounterUnsat, 65 mSDtfsCounter, 957 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=6, InterpolantAutomatonStates: 40, 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, 0.5s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 508 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-02 09:17:40,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE