./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 ab2e0ac4 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-ab2e0ac-m [2024-01-29 14:16:32,804 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:16:32,866 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:16:32,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:16:32,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:16:32,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:16:32,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:16:32,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:16:32,895 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:16:32,898 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:16:32,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:16:32,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:16:32,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:16:32,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:16:32,900 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:16:32,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:16:32,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:16:32,901 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:16:32,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:16:32,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:16:32,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:16:32,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:16:32,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:16:32,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:16:32,902 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:16:32,902 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:16:32,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:16:32,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:16:32,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:16:32,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:16:32,904 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:16:32,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:16:32,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:32,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:16:32,904 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:16:32,904 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:16:32,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:16:32,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:16:32,905 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:16:32,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:16:32,905 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:16:32,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:16:32,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:16:32,905 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:16:33,123 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:16:33,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:16:33,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:16:33,155 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:16:33,164 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:16:33,165 INFO L431 ainManager$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 [2024-01-29 14:16:33,304 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:16:33,305 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:16:33,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2024-01-29 14:16:34,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:16:34,561 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:16:34,562 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2024-01-29 14:16:34,576 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8c5e7312/e355c505b1754a20994e8e54914820a7/FLAG3ac9510a9 [2024-01-29 14:16:34,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8c5e7312/e355c505b1754a20994e8e54914820a7 [2024-01-29 14:16:34,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:16:34,590 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:16:34,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:34,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:16:34,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:16:34,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:33" (1/2) ... [2024-01-29 14:16:34,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633a77f0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:34, skipping insertion in model container [2024-01-29 14:16:34,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:33" (1/2) ... [2024-01-29 14:16:34,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@62e87f0a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:34, skipping insertion in model container [2024-01-29 14:16:34,600 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:34" (2/2) ... [2024-01-29 14:16:34,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633a77f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:34, skipping insertion in model container [2024-01-29 14:16:34,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:34" (2/2) ... [2024-01-29 14:16:34,601 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:16:34,633 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:16:34,634 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] glob1 == 5 [2024-01-29 14:16:34,635 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-29 14:16:34,635 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 == 5 [2024-01-29 14:16:34,635 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-29 14:16:34,635 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] t == 5 [2024-01-29 14:16:34,635 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-29 14:16:34,635 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t == 5 [2024-01-29 14:16:34,635 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] glob1 == -10 [2024-01-29 14:16:34,635 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 == -10 [2024-01-29 14:16:34,636 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-29 14:16:34,636 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t == 5 [2024-01-29 14:16:34,636 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 5 [2024-01-29 14:16:34,636 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-29 14:16:34,636 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (0LL - (long long )glob1) + (long long )t >= 0LL [2024-01-29 14:16:34,636 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] glob1 == 5 [2024-01-29 14:16:34,636 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] t == 5 [2024-01-29 14:16:34,636 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (long long )glob1 - (long long )t >= 0LL [2024-01-29 14:16:34,637 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] (unsigned long )arg == 0UL [2024-01-29 14:16:34,637 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] t == 5 [2024-01-29 14:16:34,637 INFO L98 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)) [2024-01-29 14:16:34,637 INFO L98 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)) [2024-01-29 14:16:34,637 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] glob1 == 6 [2024-01-29 14:16:34,638 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] glob1 == 5 [2024-01-29 14:16:34,638 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] glob1 == 6 [2024-01-29 14:16:34,638 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] glob1 == 5 [2024-01-29 14:16:34,638 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-29 14:16:34,638 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 == 5 [2024-01-29 14:16:34,638 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t == 5 [2024-01-29 14:16:34,638 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] glob1 == 5 [2024-01-29 14:16:34,638 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-29 14:16:34,674 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:16:34,822 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] [2024-01-29 14:16:34,957 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:34,964 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:16:34,981 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] [2024-01-29 14:16:34,982 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 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 [2024-01-29 14:16:35,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:35,065 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:16:35,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35 WrapperNode [2024-01-29 14:16:35,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:35,067 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:35,067 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:16:35,067 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:16:35,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,085 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,109 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 109 [2024-01-29 14:16:35,110 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:35,111 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:16:35,111 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:16:35,111 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:16:35,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,134 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,148 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 5, 2]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-01-29 14:16:35,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,148 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,152 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,156 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:16:35,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:16:35,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:16:35,167 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:16:35,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (1/1) ... [2024-01-29 14:16:35,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:35,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:16:35,194 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) [2024-01-29 14:16:35,195 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 [2024-01-29 14:16:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:16:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:16:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:16:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:16:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:16:35,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:16:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 14:16:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:16:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:16:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-29 14:16:35,220 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-29 14:16:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:16:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:16:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:16:35,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:16:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 14:16:35,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:16:35,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:16:35,222 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:16:35,316 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:16:35,318 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:16:35,513 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:16:35,513 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:16:35,587 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:16:35,587 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:16:35,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:35 BoogieIcfgContainer [2024-01-29 14:16:35,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:16:35,589 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:16:35,589 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:16:35,591 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:16:35,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:33" (1/4) ... [2024-01-29 14:16:35,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33143af0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:16:35, skipping insertion in model container [2024-01-29 14:16:35,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:16:34" (2/4) ... [2024-01-29 14:16:35,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33143af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:16:35, skipping insertion in model container [2024-01-29 14:16:35,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:35" (3/4) ... [2024-01-29 14:16:35,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33143af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:16:35, skipping insertion in model container [2024-01-29 14:16:35,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:35" (4/4) ... [2024-01-29 14:16:35,594 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2024-01-29 14:16:35,606 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:16:35,606 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-01-29 14:16:35,606 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:16:35,650 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-29 14:16:35,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 189 flow [2024-01-29 14:16:35,699 INFO L124 PetriNetUnfolderBase]: 4/90 cut-off events. [2024-01-29 14:16:35,699 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:16:35,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 4/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 101 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2024-01-29 14:16:35,703 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 189 flow [2024-01-29 14:16:35,706 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 88 transitions, 179 flow [2024-01-29 14:16:35,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:16:35,717 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;@4106f07c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:16:35,717 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-01-29 14:16:35,719 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:16:35,719 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:16:35,719 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:35,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:35,720 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:16:35,721 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:35,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:35,725 INFO L85 PathProgramCache]: Analyzing trace with hash 9947, now seen corresponding path program 1 times [2024-01-29 14:16:35,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:35,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332926904] [2024-01-29 14:16:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:35,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:35,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:35,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:35,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332926904] [2024-01-29 14:16:35,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332926904] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:35,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:35,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:16:35,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638765187] [2024-01-29 14:16:35,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:35,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:35,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:35,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:35,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:35,954 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 91 [2024-01-29 14:16:35,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 88 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-01-29 14:16:35,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:35,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 91 [2024-01-29 14:16:35,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:36,153 INFO L124 PetriNetUnfolderBase]: 161/792 cut-off events. [2024-01-29 14:16:36,154 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:36,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1206 conditions, 792 events. 161/792 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5154 event pairs, 82 based on Foata normal form. 76/692 useless extension candidates. Maximal degree in co-relation 1188. Up to 218 conditions per place. [2024-01-29 14:16:36,162 INFO L140 encePairwiseOnDemand]: 66/91 looper letters, 43 selfloop transitions, 10 changer transitions 0/101 dead transitions. [2024-01-29 14:16:36,162 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 101 transitions, 311 flow [2024-01-29 14:16:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:36,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:36,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2024-01-29 14:16:36,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8021978021978022 [2024-01-29 14:16:36,175 INFO L175 Difference]: Start difference. First operand has 88 places, 88 transitions, 179 flow. Second operand 3 states and 219 transitions. [2024-01-29 14:16:36,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 101 transitions, 311 flow [2024-01-29 14:16:36,179 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 101 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:16:36,184 INFO L231 Difference]: Finished difference. Result has 89 places, 90 transitions, 256 flow [2024-01-29 14:16:36,185 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=89, PETRI_TRANSITIONS=90} [2024-01-29 14:16:36,189 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2024-01-29 14:16:36,189 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 90 transitions, 256 flow [2024-01-29 14:16:36,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-01-29 14:16:36,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:36,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 14:16:36,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:16:36,190 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:36,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:36,191 INFO L85 PathProgramCache]: Analyzing trace with hash 9568624, now seen corresponding path program 1 times [2024-01-29 14:16:36,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:36,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825082523] [2024-01-29 14:16:36,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:36,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:36,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:36,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:36,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:36,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825082523] [2024-01-29 14:16:36,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825082523] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:36,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:36,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:36,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021391337] [2024-01-29 14:16:36,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:36,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:36,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:36,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:36,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:36,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 91 [2024-01-29 14:16:36,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 90 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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) [2024-01-29 14:16:36,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:36,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 91 [2024-01-29 14:16:36,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:36,504 INFO L124 PetriNetUnfolderBase]: 185/812 cut-off events. [2024-01-29 14:16:36,504 INFO L125 PetriNetUnfolderBase]: For 214/245 co-relation queries the response was YES. [2024-01-29 14:16:36,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1587 conditions, 812 events. 185/812 cut-off events. For 214/245 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5253 event pairs, 73 based on Foata normal form. 6/675 useless extension candidates. Maximal degree in co-relation 1567. Up to 208 conditions per place. [2024-01-29 14:16:36,510 INFO L140 encePairwiseOnDemand]: 75/91 looper letters, 60 selfloop transitions, 20 changer transitions 0/122 dead transitions. [2024-01-29 14:16:36,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 122 transitions, 520 flow [2024-01-29 14:16:36,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:36,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:36,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 308 transitions. [2024-01-29 14:16:36,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.676923076923077 [2024-01-29 14:16:36,513 INFO L175 Difference]: Start difference. First operand has 89 places, 90 transitions, 256 flow. Second operand 5 states and 308 transitions. [2024-01-29 14:16:36,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 122 transitions, 520 flow [2024-01-29 14:16:36,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 122 transitions, 490 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:36,518 INFO L231 Difference]: Finished difference. Result has 87 places, 92 transitions, 290 flow [2024-01-29 14:16:36,519 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=290, PETRI_PLACES=87, PETRI_TRANSITIONS=92} [2024-01-29 14:16:36,520 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -1 predicate places. [2024-01-29 14:16:36,520 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 92 transitions, 290 flow [2024-01-29 14:16:36,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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) [2024-01-29 14:16:36,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:36,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:36,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:16:36,521 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:36,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:36,522 INFO L85 PathProgramCache]: Analyzing trace with hash -2145600355, now seen corresponding path program 1 times [2024-01-29 14:16:36,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:36,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246728159] [2024-01-29 14:16:36,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:36,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:36,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:36,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246728159] [2024-01-29 14:16:36,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246728159] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:36,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:36,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:36,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118304726] [2024-01-29 14:16:36,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:36,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:36,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:36,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:36,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:36,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 91 [2024-01-29 14:16:36,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 92 transitions, 290 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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) [2024-01-29 14:16:36,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:36,678 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 91 [2024-01-29 14:16:36,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:36,826 INFO L124 PetriNetUnfolderBase]: 129/679 cut-off events. [2024-01-29 14:16:36,827 INFO L125 PetriNetUnfolderBase]: For 174/183 co-relation queries the response was YES. [2024-01-29 14:16:36,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1292 conditions, 679 events. 129/679 cut-off events. For 174/183 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4301 event pairs, 68 based on Foata normal form. 81/656 useless extension candidates. Maximal degree in co-relation 1271. Up to 274 conditions per place. [2024-01-29 14:16:36,830 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 39 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2024-01-29 14:16:36,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 92 transitions, 386 flow [2024-01-29 14:16:36,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:36,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:36,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 252 transitions. [2024-01-29 14:16:36,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2024-01-29 14:16:36,832 INFO L175 Difference]: Start difference. First operand has 87 places, 92 transitions, 290 flow. Second operand 4 states and 252 transitions. [2024-01-29 14:16:36,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 92 transitions, 386 flow [2024-01-29 14:16:36,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 92 transitions, 386 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 14:16:36,834 INFO L231 Difference]: Finished difference. Result has 82 places, 84 transitions, 278 flow [2024-01-29 14:16:36,834 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=82, PETRI_TRANSITIONS=84} [2024-01-29 14:16:36,835 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -6 predicate places. [2024-01-29 14:16:36,835 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 84 transitions, 278 flow [2024-01-29 14:16:36,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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) [2024-01-29 14:16:36,835 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:36,836 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:36,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:16:36,836 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:36,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:36,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1958554934, now seen corresponding path program 1 times [2024-01-29 14:16:36,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:36,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531839693] [2024-01-29 14:16:36,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:36,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:36,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:36,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:36,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531839693] [2024-01-29 14:16:36,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531839693] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:36,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:36,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:36,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607435444] [2024-01-29 14:16:36,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:36,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:36,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:36,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:36,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:36,923 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 91 [2024-01-29 14:16:36,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 278 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-01-29 14:16:36,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:36,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 91 [2024-01-29 14:16:36,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:37,021 INFO L124 PetriNetUnfolderBase]: 173/727 cut-off events. [2024-01-29 14:16:37,021 INFO L125 PetriNetUnfolderBase]: For 240/284 co-relation queries the response was YES. [2024-01-29 14:16:37,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1540 conditions, 727 events. 173/727 cut-off events. For 240/284 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4563 event pairs, 80 based on Foata normal form. 66/683 useless extension candidates. Maximal degree in co-relation 1517. Up to 214 conditions per place. [2024-01-29 14:16:37,024 INFO L140 encePairwiseOnDemand]: 76/91 looper letters, 47 selfloop transitions, 13 changer transitions 1/95 dead transitions. [2024-01-29 14:16:37,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 95 transitions, 410 flow [2024-01-29 14:16:37,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:37,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:37,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 256 transitions. [2024-01-29 14:16:37,026 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7032967032967034 [2024-01-29 14:16:37,026 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 278 flow. Second operand 4 states and 256 transitions. [2024-01-29 14:16:37,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 95 transitions, 410 flow [2024-01-29 14:16:37,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 95 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:37,028 INFO L231 Difference]: Finished difference. Result has 85 places, 80 transitions, 304 flow [2024-01-29 14:16:37,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=304, PETRI_PLACES=85, PETRI_TRANSITIONS=80} [2024-01-29 14:16:37,029 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -3 predicate places. [2024-01-29 14:16:37,029 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 80 transitions, 304 flow [2024-01-29 14:16:37,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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) [2024-01-29 14:16:37,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:37,029 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:37,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:16:37,030 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:37,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:37,030 INFO L85 PathProgramCache]: Analyzing trace with hash 559895288, now seen corresponding path program 1 times [2024-01-29 14:16:37,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:37,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819332922] [2024-01-29 14:16:37,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:37,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:37,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:37,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:37,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:37,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819332922] [2024-01-29 14:16:37,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819332922] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:37,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:37,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:37,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093643885] [2024-01-29 14:16:37,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:37,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:37,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:37,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:37,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:37,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 91 [2024-01-29 14:16:37,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 80 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-01-29 14:16:37,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:37,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 91 [2024-01-29 14:16:37,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:37,286 INFO L124 PetriNetUnfolderBase]: 223/755 cut-off events. [2024-01-29 14:16:37,286 INFO L125 PetriNetUnfolderBase]: For 541/545 co-relation queries the response was YES. [2024-01-29 14:16:37,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 755 events. 223/755 cut-off events. For 541/545 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 4265 event pairs, 55 based on Foata normal form. 20/727 useless extension candidates. Maximal degree in co-relation 1931. Up to 275 conditions per place. [2024-01-29 14:16:37,290 INFO L140 encePairwiseOnDemand]: 74/91 looper letters, 63 selfloop transitions, 12 changer transitions 3/102 dead transitions. [2024-01-29 14:16:37,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 102 transitions, 544 flow [2024-01-29 14:16:37,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:37,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:37,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 272 transitions. [2024-01-29 14:16:37,291 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5978021978021978 [2024-01-29 14:16:37,291 INFO L175 Difference]: Start difference. First operand has 85 places, 80 transitions, 304 flow. Second operand 5 states and 272 transitions. [2024-01-29 14:16:37,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 102 transitions, 544 flow [2024-01-29 14:16:37,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 102 transitions, 532 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:16:37,294 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 368 flow [2024-01-29 14:16:37,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=368, PETRI_PLACES=84, PETRI_TRANSITIONS=78} [2024-01-29 14:16:37,295 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -4 predicate places. [2024-01-29 14:16:37,295 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 368 flow [2024-01-29 14:16:37,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 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) [2024-01-29 14:16:37,295 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:37,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:37,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:16:37,295 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:37,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:37,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1577991050, now seen corresponding path program 1 times [2024-01-29 14:16:37,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:37,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248657776] [2024-01-29 14:16:37,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:37,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:37,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:37,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248657776] [2024-01-29 14:16:37,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248657776] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:37,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:37,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:37,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314827818] [2024-01-29 14:16:37,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:37,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:37,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:37,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:37,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 91 [2024-01-29 14:16:37,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 78 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-01-29 14:16:37,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:37,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 91 [2024-01-29 14:16:37,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:37,391 INFO L124 PetriNetUnfolderBase]: 35/228 cut-off events. [2024-01-29 14:16:37,391 INFO L125 PetriNetUnfolderBase]: For 209/209 co-relation queries the response was YES. [2024-01-29 14:16:37,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 228 events. 35/228 cut-off events. For 209/209 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 743 event pairs, 7 based on Foata normal form. 13/224 useless extension candidates. Maximal degree in co-relation 469. Up to 78 conditions per place. [2024-01-29 14:16:37,392 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 22 selfloop transitions, 3 changer transitions 7/62 dead transitions. [2024-01-29 14:16:37,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 62 transitions, 287 flow [2024-01-29 14:16:37,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:37,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:37,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2024-01-29 14:16:37,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7802197802197802 [2024-01-29 14:16:37,394 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 368 flow. Second operand 3 states and 213 transitions. [2024-01-29 14:16:37,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 62 transitions, 287 flow [2024-01-29 14:16:37,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 62 transitions, 204 flow, removed 12 selfloop flow, removed 12 redundant places. [2024-01-29 14:16:37,397 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 125 flow [2024-01-29 14:16:37,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2024-01-29 14:16:37,399 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -22 predicate places. [2024-01-29 14:16:37,399 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 125 flow [2024-01-29 14:16:37,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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) [2024-01-29 14:16:37,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:37,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:37,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:16:37,400 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:37,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:37,401 INFO L85 PathProgramCache]: Analyzing trace with hash -339825315, now seen corresponding path program 1 times [2024-01-29 14:16:37,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:37,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589545059] [2024-01-29 14:16:37,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:37,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:37,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:37,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:37,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:37,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589545059] [2024-01-29 14:16:37,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589545059] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:37,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:37,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:37,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240136833] [2024-01-29 14:16:37,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:37,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:37,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:37,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:37,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:37,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 91 [2024-01-29 14:16:37,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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) [2024-01-29 14:16:37,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:37,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 91 [2024-01-29 14:16:37,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:37,542 INFO L124 PetriNetUnfolderBase]: 38/183 cut-off events. [2024-01-29 14:16:37,543 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2024-01-29 14:16:37,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 183 events. 38/183 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 447 event pairs, 10 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 325. Up to 60 conditions per place. [2024-01-29 14:16:37,544 INFO L140 encePairwiseOnDemand]: 84/91 looper letters, 28 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2024-01-29 14:16:37,544 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 52 transitions, 191 flow [2024-01-29 14:16:37,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:37,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:37,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 215 transitions. [2024-01-29 14:16:37,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5906593406593407 [2024-01-29 14:16:37,545 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 125 flow. Second operand 4 states and 215 transitions. [2024-01-29 14:16:37,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 52 transitions, 191 flow [2024-01-29 14:16:37,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 52 transitions, 176 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-29 14:16:37,550 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 112 flow [2024-01-29 14:16:37,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2024-01-29 14:16:37,552 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -32 predicate places. [2024-01-29 14:16:37,552 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 112 flow [2024-01-29 14:16:37,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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) [2024-01-29 14:16:37,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:37,553 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, 1, 1] [2024-01-29 14:16:37,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:16:37,554 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:37,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:37,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1170686749, now seen corresponding path program 1 times [2024-01-29 14:16:37,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:37,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090480039] [2024-01-29 14:16:37,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:37,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:37,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:37,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:37,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090480039] [2024-01-29 14:16:37,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090480039] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:37,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:37,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:37,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870899271] [2024-01-29 14:16:37,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:37,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:37,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:37,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:37,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:37,611 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 91 [2024-01-29 14:16:37,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2024-01-29 14:16:37,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:37,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 91 [2024-01-29 14:16:37,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:37,641 INFO L124 PetriNetUnfolderBase]: 31/164 cut-off events. [2024-01-29 14:16:37,642 INFO L125 PetriNetUnfolderBase]: For 24/25 co-relation queries the response was YES. [2024-01-29 14:16:37,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 164 events. 31/164 cut-off events. For 24/25 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 380 event pairs, 23 based on Foata normal form. 4/157 useless extension candidates. Maximal degree in co-relation 284. Up to 76 conditions per place. [2024-01-29 14:16:37,642 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 26 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-01-29 14:16:37,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 48 transitions, 168 flow [2024-01-29 14:16:37,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:37,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:37,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 195 transitions. [2024-01-29 14:16:37,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-01-29 14:16:37,644 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 112 flow. Second operand 3 states and 195 transitions. [2024-01-29 14:16:37,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 48 transitions, 168 flow [2024-01-29 14:16:37,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 158 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 14:16:37,645 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 102 flow [2024-01-29 14:16:37,645 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2024-01-29 14:16:37,645 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -35 predicate places. [2024-01-29 14:16:37,645 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 102 flow [2024-01-29 14:16:37,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2024-01-29 14:16:37,646 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:37,646 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:37,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 14:16:37,646 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:37,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:37,647 INFO L85 PathProgramCache]: Analyzing trace with hash -341926902, now seen corresponding path program 1 times [2024-01-29 14:16:37,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:37,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231869540] [2024-01-29 14:16:37,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:37,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:37,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:37,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:37,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231869540] [2024-01-29 14:16:37,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231869540] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:37,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:37,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:37,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100506366] [2024-01-29 14:16:37,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:37,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:37,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:37,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:37,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:37,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 91 [2024-01-29 14:16:37,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-01-29 14:16:37,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:37,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 91 [2024-01-29 14:16:37,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:37,751 INFO L124 PetriNetUnfolderBase]: 28/156 cut-off events. [2024-01-29 14:16:37,752 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2024-01-29 14:16:37,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 156 events. 28/156 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 361 event pairs, 16 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 254. Up to 55 conditions per place. [2024-01-29 14:16:37,752 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 23 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2024-01-29 14:16:37,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 47 transitions, 156 flow [2024-01-29 14:16:37,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:37,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:37,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2024-01-29 14:16:37,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7362637362637363 [2024-01-29 14:16:37,754 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 102 flow. Second operand 3 states and 201 transitions. [2024-01-29 14:16:37,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 47 transitions, 156 flow [2024-01-29 14:16:37,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 47 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:37,755 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 102 flow [2024-01-29 14:16:37,755 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-01-29 14:16:37,756 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -36 predicate places. [2024-01-29 14:16:37,756 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 102 flow [2024-01-29 14:16:37,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-01-29 14:16:37,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:37,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:37,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 14:16:37,757 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:37,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:37,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1318497812, now seen corresponding path program 1 times [2024-01-29 14:16:37,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:37,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830970909] [2024-01-29 14:16:37,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:37,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:37,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:37,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830970909] [2024-01-29 14:16:37,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830970909] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:37,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:37,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:37,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353078259] [2024-01-29 14:16:37,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:37,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:37,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:37,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:37,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:37,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 91 [2024-01-29 14:16:37,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-01-29 14:16:37,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:37,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 91 [2024-01-29 14:16:37,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:37,847 INFO L124 PetriNetUnfolderBase]: 26/150 cut-off events. [2024-01-29 14:16:37,847 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2024-01-29 14:16:37,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 150 events. 26/150 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 339 event pairs, 16 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 246. Up to 55 conditions per place. [2024-01-29 14:16:37,848 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2024-01-29 14:16:37,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 154 flow [2024-01-29 14:16:37,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:37,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2024-01-29 14:16:37,849 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7326007326007326 [2024-01-29 14:16:37,849 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 102 flow. Second operand 3 states and 200 transitions. [2024-01-29 14:16:37,850 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 154 flow [2024-01-29 14:16:37,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:37,850 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2024-01-29 14:16:37,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2024-01-29 14:16:37,851 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -37 predicate places. [2024-01-29 14:16:37,851 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2024-01-29 14:16:37,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-01-29 14:16:37,853 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 57 remaining) [2024-01-29 14:16:37,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (55 of 57 remaining) [2024-01-29 14:16:37,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 57 remaining) [2024-01-29 14:16:37,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 57 remaining) [2024-01-29 14:16:37,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 57 remaining) [2024-01-29 14:16:37,854 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (51 of 57 remaining) [2024-01-29 14:16:37,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 57 remaining) [2024-01-29 14:16:37,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 57 remaining) [2024-01-29 14:16:37,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 57 remaining) [2024-01-29 14:16:37,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 57 remaining) [2024-01-29 14:16:37,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 57 remaining) [2024-01-29 14:16:37,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 57 remaining) [2024-01-29 14:16:37,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 57 remaining) [2024-01-29 14:16:37,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 57 remaining) [2024-01-29 14:16:37,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 57 remaining) [2024-01-29 14:16:37,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (41 of 57 remaining) [2024-01-29 14:16:37,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 57 remaining) [2024-01-29 14:16:37,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 57 remaining) [2024-01-29 14:16:37,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 57 remaining) [2024-01-29 14:16:37,856 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 57 remaining) [2024-01-29 14:16:37,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 57 remaining) [2024-01-29 14:16:37,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 57 remaining) [2024-01-29 14:16:37,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONERROR_FUNCTION (34 of 57 remaining) [2024-01-29 14:16:37,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 57 remaining) [2024-01-29 14:16:37,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 57 remaining) [2024-01-29 14:16:37,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 57 remaining) [2024-01-29 14:16:37,857 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 57 remaining) [2024-01-29 14:16:37,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 57 remaining) [2024-01-29 14:16:37,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 57 remaining) [2024-01-29 14:16:37,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 57 remaining) [2024-01-29 14:16:37,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 57 remaining) [2024-01-29 14:16:37,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 57 remaining) [2024-01-29 14:16:37,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 57 remaining) [2024-01-29 14:16:37,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 57 remaining) [2024-01-29 14:16:37,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 57 remaining) [2024-01-29 14:16:37,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 57 remaining) [2024-01-29 14:16:37,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 57 remaining) [2024-01-29 14:16:37,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 57 remaining) [2024-01-29 14:16:37,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 57 remaining) [2024-01-29 14:16:37,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (17 of 57 remaining) [2024-01-29 14:16:37,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 57 remaining) [2024-01-29 14:16:37,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 57 remaining) [2024-01-29 14:16:37,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 57 remaining) [2024-01-29 14:16:37,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 57 remaining) [2024-01-29 14:16:37,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 57 remaining) [2024-01-29 14:16:37,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 57 remaining) [2024-01-29 14:16:37,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONERROR_FUNCTION (10 of 57 remaining) [2024-01-29 14:16:37,860 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 57 remaining) [2024-01-29 14:16:37,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 57 remaining) [2024-01-29 14:16:37,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 57 remaining) [2024-01-29 14:16:37,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 57 remaining) [2024-01-29 14:16:37,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 57 remaining) [2024-01-29 14:16:37,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 57 remaining) [2024-01-29 14:16:37,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 57 remaining) [2024-01-29 14:16:37,861 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 57 remaining) [2024-01-29 14:16:37,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 57 remaining) [2024-01-29 14:16:37,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 57 remaining) [2024-01-29 14:16:37,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 14:16:37,862 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:37,866 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:16:37,867 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:16:37,870 INFO L503 ceAbstractionStarter]: Automizer considered 28 witness invariants [2024-01-29 14:16:37,870 INFO L504 ceAbstractionStarter]: WitnessConsidered=28 [2024-01-29 14:16:37,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:16:37 BasicIcfg [2024-01-29 14:16:37,871 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:16:37,872 INFO L158 Benchmark]: Toolchain (without parser) took 3281.70ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 77.1MB in the beginning and 57.5MB in the end (delta: 19.6MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2024-01-29 14:16:37,872 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 92.3MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:37,872 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:37,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 475.52ms. Allocated memory is still 119.5MB. Free memory was 76.8MB in the beginning and 52.9MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:37,872 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.61ms. Allocated memory is still 119.5MB. Free memory was 52.9MB in the beginning and 50.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:37,873 INFO L158 Benchmark]: Boogie Preprocessor took 47.64ms. Allocated memory is still 119.5MB. Free memory was 50.6MB in the beginning and 89.4MB in the end (delta: -38.8MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-01-29 14:16:37,873 INFO L158 Benchmark]: RCFGBuilder took 420.62ms. Allocated memory is still 119.5MB. Free memory was 89.4MB in the beginning and 64.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-29 14:16:37,873 INFO L158 Benchmark]: TraceAbstraction took 2282.40ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 63.2MB in the beginning and 57.5MB in the end (delta: 5.7MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2024-01-29 14:16:37,874 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 0.10ms. Allocated memory is still 92.3MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 475.52ms. Allocated memory is still 119.5MB. Free memory was 76.8MB in the beginning and 52.9MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.61ms. Allocated memory is still 119.5MB. Free memory was 52.9MB in the beginning and 50.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.64ms. Allocated memory is still 119.5MB. Free memory was 50.6MB in the beginning and 89.4MB in the end (delta: -38.8MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * RCFGBuilder took 420.62ms. Allocated memory is still 119.5MB. Free memory was 89.4MB in the beginning and 64.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2282.40ms. Allocated memory was 119.5MB in the beginning and 157.3MB in the end (delta: 37.7MB). Free memory was 63.2MB in the beginning and 57.5MB in the end (delta: 5.7MB). Peak memory consumption was 42.4MB. 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: 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: 690]: 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: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds 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: 692]: 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: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds 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: 694]: 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: 694]: 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 - 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, 147 locations, 57 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 724 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 443 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 128 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 962 IncrementalHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 128 mSolverCounterUnsat, 86 mSDtfsCounter, 962 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=368occurred in iteration=5, InterpolantAutomatonStates: 37, 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, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 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 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-29 14:16:37,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE