./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.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_18-first-reads_unknown_1_neg.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27552612 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_18-first-reads_unknown_1_neg.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_unknown_1_neg.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-2755261-m [2024-01-26 15:18:17,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:18:17,081 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:18:17,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:18:17,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:18:17,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:18:17,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:18:17,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:18:17,138 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:18:17,141 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:18:17,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:18:17,141 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:18:17,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:18:17,143 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:18:17,143 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:18:17,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:18:17,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:18:17,144 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:18:17,144 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:18:17,144 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:18:17,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:18:17,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:18:17,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:18:17,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:18:17,145 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:18:17,145 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:18:17,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:18:17,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:18:17,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:18:17,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:18:17,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:18:17,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:18:17,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:17,148 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:18:17,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:18:17,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:18:17,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:18:17,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:18:17,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:18:17,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:18:17,149 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:18:17,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:18:17,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:18:17,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:18:17,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:18:17,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:18:17,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:18:17,367 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:18:17,367 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:18:17,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2024-01-26 15:18:18,365 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:18:18,544 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:18:18,545 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_neg.i [2024-01-26 15:18:18,554 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85df8a2f/b19b977200c543b2b3e70febaf3a8deb/FLAG968286cdf [2024-01-26 15:18:18,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f85df8a2f/b19b977200c543b2b3e70febaf3a8deb [2024-01-26 15:18:18,566 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:18:18,567 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:18:18,567 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_unknown_1_neg.yml/witness.yml [2024-01-26 15:18:18,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:18:18,647 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:18:18,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:18,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:18:18,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:18:18,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:18" (1/2) ... [2024-01-26 15:18:18,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f01bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:18, skipping insertion in model container [2024-01-26 15:18:18,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:18" (1/2) ... [2024-01-26 15:18:18,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@44bc6e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:18, skipping insertion in model container [2024-01-26 15:18:18,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:18" (2/2) ... [2024-01-26 15:18:18,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f01bf0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:18, skipping insertion in model container [2024-01-26 15:18:18,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:18" (2/2) ... [2024-01-26 15:18:18,656 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:18:18,698 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:18:18,699 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] 0 <= t [2024-01-26 15:18:18,699 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-26 15:18:18,699 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] t <= 1 [2024-01-26 15:18:18,699 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] t == 0 || t == 1 [2024-01-26 15:18:18,700 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 <= 1 [2024-01-26 15:18:18,700 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:18,700 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] 0 <= glob1 [2024-01-26 15:18:18,700 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-26 15:18:18,701 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-26 15:18:18,701 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L689] (unsigned long )arg == 0UL [2024-01-26 15:18:18,701 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L689] glob1 == 0 [2024-01-26 15:18:18,701 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t <= 1 [2024-01-26 15:18:18,701 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t == 0 || t == 1 [2024-01-26 15:18:18,701 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-26 15:18:18,701 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] 0 <= t [2024-01-26 15:18:18,702 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] glob1 == 0 [2024-01-26 15:18:18,702 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] glob1 == 0 [2024-01-26 15:18:18,702 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] glob1 == 0 [2024-01-26 15:18:18,702 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] t == 42 [2024-01-26 15:18:18,702 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-26 15:18:18,702 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 0 [2024-01-26 15:18:18,703 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-26 15:18:18,703 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-26 15:18:18,703 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-26 15:18:18,703 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-26 15:18:18,703 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-26 15:18:18,703 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:18,704 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:18,704 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:18,704 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-26 15:18:18,704 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 <= 1 [2024-01-26 15:18:18,704 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= glob1 [2024-01-26 15:18:18,704 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:18,705 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t == 0 || t == 1 [2024-01-26 15:18:18,705 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-26 15:18:18,705 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t <= 1 [2024-01-26 15:18:18,705 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= t [2024-01-26 15:18:18,705 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 0 <= glob1 [2024-01-26 15:18:18,706 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-26 15:18:18,706 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 == 0 || glob1 == 1 [2024-01-26 15:18:18,707 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t <= 1 [2024-01-26 15:18:18,707 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 0 <= t [2024-01-26 15:18:18,707 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 <= 1 [2024-01-26 15:18:18,707 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t == 0 || t == 1 [2024-01-26 15:18:18,707 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-26 15:18:18,745 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:18:18,869 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_18-first-reads_unknown_1_neg.i[1097,1110] [2024-01-26 15:18:18,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:19,009 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 15:18:19,017 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_18-first-reads_unknown_1_neg.i[1097,1110] [2024-01-26 15:18:19,019 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-26 15:18:19,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:19,092 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:18:19,092 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19 WrapperNode [2024-01-26 15:18:19,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:19,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:19,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:18:19,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:18:19,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,107 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,123 INFO L138 Inliner]: procedures = 164, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2024-01-26 15:18:19,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:19,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:18:19,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:18:19,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:18:19,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,133 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,142 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]. [2024-01-26 15:18:19,143 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:18:19,156 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:18:19,156 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:18:19,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:18:19,157 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (1/1) ... [2024-01-26 15:18:19,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:19,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:18:19,179 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) [2024-01-26 15:18:19,196 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 [2024-01-26 15:18:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-26 15:18:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-26 15:18:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-26 15:18:19,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:18:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:18:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:18:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-26 15:18:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:18:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:18:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-26 15:18:19,215 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-26 15:18:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:18:19,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:18:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:18:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:18:19,216 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-26 15:18:19,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:18:19,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:18:19,218 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:18:19,318 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:18:19,320 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:18:19,540 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:18:19,541 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:18:19,608 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:18:19,608 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-26 15:18:19,609 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:19 BoogieIcfgContainer [2024-01-26 15:18:19,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:18:19,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:18:19,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:18:19,613 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:18:19,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:18:18" (1/4) ... [2024-01-26 15:18:19,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74fdd190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:18:19, skipping insertion in model container [2024-01-26 15:18:19,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:18" (2/4) ... [2024-01-26 15:18:19,614 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74fdd190 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:18:19, skipping insertion in model container [2024-01-26 15:18:19,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:19" (3/4) ... [2024-01-26 15:18:19,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74fdd190 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:18:19, skipping insertion in model container [2024-01-26 15:18:19,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:19" (4/4) ... [2024-01-26 15:18:19,617 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_neg.i [2024-01-26 15:18:19,631 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:18:19,631 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-01-26 15:18:19,631 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:18:19,739 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-26 15:18:19,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 94 transitions, 195 flow [2024-01-26 15:18:19,819 INFO L124 PetriNetUnfolderBase]: 2/93 cut-off events. [2024-01-26 15:18:19,820 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-26 15:18:19,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 2/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2024-01-26 15:18:19,822 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 94 transitions, 195 flow [2024-01-26 15:18:19,827 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 91 transitions, 185 flow [2024-01-26 15:18:19,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:18:19,848 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;@454583f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:18:19,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2024-01-26 15:18:19,850 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:18:19,850 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:18:19,850 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:19,850 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:19,851 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:18:19,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:19,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:19,855 INFO L85 PathProgramCache]: Analyzing trace with hash 8684, now seen corresponding path program 1 times [2024-01-26 15:18:19,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:19,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267210209] [2024-01-26 15:18:19,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:19,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:20,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:20,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:20,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267210209] [2024-01-26 15:18:20,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267210209] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:20,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:20,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:18:20,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013359319] [2024-01-26 15:18:20,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:20,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:20,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:20,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:20,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:20,067 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2024-01-26 15:18:20,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 91 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2024-01-26 15:18:20,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:20,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2024-01-26 15:18:20,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:20,189 INFO L124 PetriNetUnfolderBase]: 126/641 cut-off events. [2024-01-26 15:18:20,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:20,191 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 641 events. 126/641 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3827 event pairs, 62 based on Foata normal form. 38/493 useless extension candidates. Maximal degree in co-relation 954. Up to 164 conditions per place. [2024-01-26 15:18:20,194 INFO L140 encePairwiseOnDemand]: 75/94 looper letters, 34 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2024-01-26 15:18:20,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 95 transitions, 269 flow [2024-01-26 15:18:20,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:20,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:20,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2024-01-26 15:18:20,204 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8085106382978723 [2024-01-26 15:18:20,205 INFO L175 Difference]: Start difference. First operand has 93 places, 91 transitions, 185 flow. Second operand 3 states and 228 transitions. [2024-01-26 15:18:20,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 95 transitions, 269 flow [2024-01-26 15:18:20,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:20,210 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 218 flow [2024-01-26 15:18:20,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2024-01-26 15:18:20,214 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -1 predicate places. [2024-01-26 15:18:20,215 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 218 flow [2024-01-26 15:18:20,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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) [2024-01-26 15:18:20,215 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:20,215 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-26 15:18:20,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:18:20,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:20,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:20,216 INFO L85 PathProgramCache]: Analyzing trace with hash 259105612, now seen corresponding path program 1 times [2024-01-26 15:18:20,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:20,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978639796] [2024-01-26 15:18:20,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:20,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:20,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:20,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:20,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978639796] [2024-01-26 15:18:20,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978639796] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:20,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:20,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:20,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197186770] [2024-01-26 15:18:20,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:20,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:20,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:20,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:20,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:20,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 94 [2024-01-26 15:18:20,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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) [2024-01-26 15:18:20,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:20,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 94 [2024-01-26 15:18:20,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:20,458 INFO L124 PetriNetUnfolderBase]: 73/646 cut-off events. [2024-01-26 15:18:20,459 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-01-26 15:18:20,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 646 events. 73/646 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4141 event pairs, 10 based on Foata normal form. 60/577 useless extension candidates. Maximal degree in co-relation 929. Up to 154 conditions per place. [2024-01-26 15:18:20,462 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 20 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2024-01-26 15:18:20,462 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 83 transitions, 252 flow [2024-01-26 15:18:20,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:20,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:20,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 290 transitions. [2024-01-26 15:18:20,464 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7712765957446809 [2024-01-26 15:18:20,464 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 218 flow. Second operand 4 states and 290 transitions. [2024-01-26 15:18:20,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 83 transitions, 252 flow [2024-01-26 15:18:20,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 83 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:20,468 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 196 flow [2024-01-26 15:18:20,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-01-26 15:18:20,468 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -9 predicate places. [2024-01-26 15:18:20,469 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 196 flow [2024-01-26 15:18:20,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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) [2024-01-26 15:18:20,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:20,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:20,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:18:20,469 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:20,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:20,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1637831660, now seen corresponding path program 1 times [2024-01-26 15:18:20,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:20,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137370801] [2024-01-26 15:18:20,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:20,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:20,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:20,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:20,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137370801] [2024-01-26 15:18:20,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137370801] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:20,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:20,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:20,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858524216] [2024-01-26 15:18:20,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:20,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:20,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:20,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:20,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:20,569 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 94 [2024-01-26 15:18:20,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2024-01-26 15:18:20,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:20,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 94 [2024-01-26 15:18:20,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:20,653 INFO L124 PetriNetUnfolderBase]: 151/693 cut-off events. [2024-01-26 15:18:20,653 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-01-26 15:18:20,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1164 conditions, 693 events. 151/693 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 4154 event pairs, 130 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 1150. Up to 317 conditions per place. [2024-01-26 15:18:20,657 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 35 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2024-01-26 15:18:20,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 83 transitions, 278 flow [2024-01-26 15:18:20,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:20,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:20,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2024-01-26 15:18:20,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7588652482269503 [2024-01-26 15:18:20,660 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 196 flow. Second operand 3 states and 214 transitions. [2024-01-26 15:18:20,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 83 transitions, 278 flow [2024-01-26 15:18:20,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 83 transitions, 275 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:20,665 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 201 flow [2024-01-26 15:18:20,666 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-01-26 15:18:20,667 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -9 predicate places. [2024-01-26 15:18:20,667 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 201 flow [2024-01-26 15:18:20,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2024-01-26 15:18:20,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:20,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:20,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:18:20,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:20,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:20,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1814156117, now seen corresponding path program 1 times [2024-01-26 15:18:20,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:20,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775509056] [2024-01-26 15:18:20,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:20,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:20,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:20,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:20,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775509056] [2024-01-26 15:18:20,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775509056] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:20,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:20,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:20,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142643833] [2024-01-26 15:18:20,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:20,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:20,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:20,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:20,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:20,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2024-01-26 15:18:20,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 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) [2024-01-26 15:18:20,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:20,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2024-01-26 15:18:20,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:20,825 INFO L124 PetriNetUnfolderBase]: 72/451 cut-off events. [2024-01-26 15:18:20,826 INFO L125 PetriNetUnfolderBase]: For 102/116 co-relation queries the response was YES. [2024-01-26 15:18:20,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 451 events. 72/451 cut-off events. For 102/116 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2396 event pairs, 50 based on Foata normal form. 54/400 useless extension candidates. Maximal degree in co-relation 664. Up to 129 conditions per place. [2024-01-26 15:18:20,828 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 25 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2024-01-26 15:18:20,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 75 transitions, 227 flow [2024-01-26 15:18:20,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:20,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-01-26 15:18:20,830 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8014184397163121 [2024-01-26 15:18:20,832 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 201 flow. Second operand 3 states and 226 transitions. [2024-01-26 15:18:20,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 75 transitions, 227 flow [2024-01-26 15:18:20,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 75 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:20,836 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 163 flow [2024-01-26 15:18:20,839 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2024-01-26 15:18:20,840 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -17 predicate places. [2024-01-26 15:18:20,840 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 163 flow [2024-01-26 15:18:20,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 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) [2024-01-26 15:18:20,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:20,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:20,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 15:18:20,841 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:20,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:20,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1783618102, now seen corresponding path program 1 times [2024-01-26 15:18:20,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:20,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499902257] [2024-01-26 15:18:20,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:20,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:20,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:20,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:20,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499902257] [2024-01-26 15:18:20,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499902257] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:20,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:20,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:20,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941184045] [2024-01-26 15:18:20,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:20,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:20,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:20,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:20,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:20,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2024-01-26 15:18:20,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 163 flow. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2024-01-26 15:18:20,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:20,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2024-01-26 15:18:20,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:21,038 INFO L124 PetriNetUnfolderBase]: 159/696 cut-off events. [2024-01-26 15:18:21,038 INFO L125 PetriNetUnfolderBase]: For 90/92 co-relation queries the response was YES. [2024-01-26 15:18:21,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 696 events. 159/696 cut-off events. For 90/92 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3881 event pairs, 84 based on Foata normal form. 66/729 useless extension candidates. Maximal degree in co-relation 1154. Up to 183 conditions per place. [2024-01-26 15:18:21,041 INFO L140 encePairwiseOnDemand]: 78/94 looper letters, 41 selfloop transitions, 4 changer transitions 5/83 dead transitions. [2024-01-26 15:18:21,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 83 transitions, 293 flow [2024-01-26 15:18:21,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:21,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:21,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-01-26 15:18:21,042 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6329787234042553 [2024-01-26 15:18:21,042 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 163 flow. Second operand 4 states and 238 transitions. [2024-01-26 15:18:21,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 83 transitions, 293 flow [2024-01-26 15:18:21,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 83 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:21,044 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 190 flow [2024-01-26 15:18:21,044 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=79, PETRI_TRANSITIONS=68} [2024-01-26 15:18:21,046 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2024-01-26 15:18:21,046 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 190 flow [2024-01-26 15:18:21,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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) [2024-01-26 15:18:21,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:21,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:21,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-26 15:18:21,047 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:21,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:21,047 INFO L85 PathProgramCache]: Analyzing trace with hash 280848107, now seen corresponding path program 1 times [2024-01-26 15:18:21,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:21,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048165996] [2024-01-26 15:18:21,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:21,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:21,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:21,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:21,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048165996] [2024-01-26 15:18:21,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048165996] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:21,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:21,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-26 15:18:21,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093090378] [2024-01-26 15:18:21,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:21,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:21,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:21,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:21,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:21,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2024-01-26 15:18:21,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 68 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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) [2024-01-26 15:18:21,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:21,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2024-01-26 15:18:21,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:21,181 INFO L124 PetriNetUnfolderBase]: 35/337 cut-off events. [2024-01-26 15:18:21,181 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-01-26 15:18:21,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 337 events. 35/337 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1546 event pairs, 8 based on Foata normal form. 13/339 useless extension candidates. Maximal degree in co-relation 516. Up to 54 conditions per place. [2024-01-26 15:18:21,182 INFO L140 encePairwiseOnDemand]: 87/94 looper letters, 18 selfloop transitions, 7 changer transitions 3/75 dead transitions. [2024-01-26 15:18:21,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 75 transitions, 258 flow [2024-01-26 15:18:21,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:18:21,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:18:21,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 321 transitions. [2024-01-26 15:18:21,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6829787234042554 [2024-01-26 15:18:21,184 INFO L175 Difference]: Start difference. First operand has 79 places, 68 transitions, 190 flow. Second operand 5 states and 321 transitions. [2024-01-26 15:18:21,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 75 transitions, 258 flow [2024-01-26 15:18:21,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 235 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-01-26 15:18:21,186 INFO L231 Difference]: Finished difference. Result has 79 places, 66 transitions, 175 flow [2024-01-26 15:18:21,186 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=175, PETRI_PLACES=79, PETRI_TRANSITIONS=66} [2024-01-26 15:18:21,186 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2024-01-26 15:18:21,186 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 66 transitions, 175 flow [2024-01-26 15:18:21,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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) [2024-01-26 15:18:21,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:21,187 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:21,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-26 15:18:21,187 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:21,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:21,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1951049356, now seen corresponding path program 1 times [2024-01-26 15:18:21,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:21,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647784106] [2024-01-26 15:18:21,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:21,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:21,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:21,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:21,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647784106] [2024-01-26 15:18:21,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647784106] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:21,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:21,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:21,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221105188] [2024-01-26 15:18:21,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:21,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:21,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:21,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:21,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:21,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 94 [2024-01-26 15:18:21,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 66 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-01-26 15:18:21,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:21,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 94 [2024-01-26 15:18:21,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:21,389 INFO L124 PetriNetUnfolderBase]: 34/259 cut-off events. [2024-01-26 15:18:21,391 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-01-26 15:18:21,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 259 events. 34/259 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 947 event pairs, 19 based on Foata normal form. 51/292 useless extension candidates. Maximal degree in co-relation 406. Up to 62 conditions per place. [2024-01-26 15:18:21,392 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 20 selfloop transitions, 2 changer transitions 24/65 dead transitions. [2024-01-26 15:18:21,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 229 flow [2024-01-26 15:18:21,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:18:21,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:18:21,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 289 transitions. [2024-01-26 15:18:21,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6148936170212767 [2024-01-26 15:18:21,394 INFO L175 Difference]: Start difference. First operand has 79 places, 66 transitions, 175 flow. Second operand 5 states and 289 transitions. [2024-01-26 15:18:21,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 229 flow [2024-01-26 15:18:21,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 65 transitions, 217 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-26 15:18:21,397 INFO L231 Difference]: Finished difference. Result has 66 places, 36 transitions, 94 flow [2024-01-26 15:18:21,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=94, PETRI_PLACES=66, PETRI_TRANSITIONS=36} [2024-01-26 15:18:21,398 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -27 predicate places. [2024-01-26 15:18:21,398 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 36 transitions, 94 flow [2024-01-26 15:18:21,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 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) [2024-01-26 15:18:21,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:21,398 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] [2024-01-26 15:18:21,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-26 15:18:21,399 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-26 15:18:21,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:21,399 INFO L85 PathProgramCache]: Analyzing trace with hash 322047283, now seen corresponding path program 1 times [2024-01-26 15:18:21,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:21,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817657108] [2024-01-26 15:18:21,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:21,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:21,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:18:21,417 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-26 15:18:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:18:21,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-26 15:18:21,454 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-26 15:18:21,454 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr18ASSERT_VIOLATIONERROR_FUNCTION (72 of 73 remaining) [2024-01-26 15:18:21,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 73 remaining) [2024-01-26 15:18:21,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 73 remaining) [2024-01-26 15:18:21,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (69 of 73 remaining) [2024-01-26 15:18:21,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 73 remaining) [2024-01-26 15:18:21,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 73 remaining) [2024-01-26 15:18:21,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 73 remaining) [2024-01-26 15:18:21,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 73 remaining) [2024-01-26 15:18:21,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 73 remaining) [2024-01-26 15:18:21,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 73 remaining) [2024-01-26 15:18:21,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 73 remaining) [2024-01-26 15:18:21,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 73 remaining) [2024-01-26 15:18:21,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 73 remaining) [2024-01-26 15:18:21,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 73 remaining) [2024-01-26 15:18:21,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 73 remaining) [2024-01-26 15:18:21,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 73 remaining) [2024-01-26 15:18:21,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 73 remaining) [2024-01-26 15:18:21,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 73 remaining) [2024-01-26 15:18:21,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 73 remaining) [2024-01-26 15:18:21,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 73 remaining) [2024-01-26 15:18:21,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 73 remaining) [2024-01-26 15:18:21,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 73 remaining) [2024-01-26 15:18:21,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr18ASSERT_VIOLATIONERROR_FUNCTION (50 of 73 remaining) [2024-01-26 15:18:21,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 73 remaining) [2024-01-26 15:18:21,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 73 remaining) [2024-01-26 15:18:21,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 73 remaining) [2024-01-26 15:18:21,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 73 remaining) [2024-01-26 15:18:21,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 73 remaining) [2024-01-26 15:18:21,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr24ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 73 remaining) [2024-01-26 15:18:21,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr25ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 73 remaining) [2024-01-26 15:18:21,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr26ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 73 remaining) [2024-01-26 15:18:21,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr27ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 73 remaining) [2024-01-26 15:18:21,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr28ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 73 remaining) [2024-01-26 15:18:21,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr29ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 73 remaining) [2024-01-26 15:18:21,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr30ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 73 remaining) [2024-01-26 15:18:21,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr31ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 73 remaining) [2024-01-26 15:18:21,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr32ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 73 remaining) [2024-01-26 15:18:21,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr33ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 73 remaining) [2024-01-26 15:18:21,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr34ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 73 remaining) [2024-01-26 15:18:21,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 73 remaining) [2024-01-26 15:18:21,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 73 remaining) [2024-01-26 15:18:21,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 73 remaining) [2024-01-26 15:18:21,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 73 remaining) [2024-01-26 15:18:21,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 73 remaining) [2024-01-26 15:18:21,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 73 remaining) [2024-01-26 15:18:21,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 73 remaining) [2024-01-26 15:18:21,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 73 remaining) [2024-01-26 15:18:21,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 73 remaining) [2024-01-26 15:18:21,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 73 remaining) [2024-01-26 15:18:21,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 73 remaining) [2024-01-26 15:18:21,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 73 remaining) [2024-01-26 15:18:21,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 73 remaining) [2024-01-26 15:18:21,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 73 remaining) [2024-01-26 15:18:21,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 73 remaining) [2024-01-26 15:18:21,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 73 remaining) [2024-01-26 15:18:21,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 73 remaining) [2024-01-26 15:18:21,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 73 remaining) [2024-01-26 15:18:21,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 73 remaining) [2024-01-26 15:18:21,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 73 remaining) [2024-01-26 15:18:21,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 73 remaining) [2024-01-26 15:18:21,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 73 remaining) [2024-01-26 15:18:21,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 73 remaining) [2024-01-26 15:18:21,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr24ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 73 remaining) [2024-01-26 15:18:21,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr25ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 73 remaining) [2024-01-26 15:18:21,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr26ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 73 remaining) [2024-01-26 15:18:21,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr27ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 73 remaining) [2024-01-26 15:18:21,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr28ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 73 remaining) [2024-01-26 15:18:21,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr29ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 73 remaining) [2024-01-26 15:18:21,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr30ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 73 remaining) [2024-01-26 15:18:21,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr31ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 73 remaining) [2024-01-26 15:18:21,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr32ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 73 remaining) [2024-01-26 15:18:21,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr33ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 73 remaining) [2024-01-26 15:18:21,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr34ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 73 remaining) [2024-01-26 15:18:21,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-26 15:18:21,475 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:21,481 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 15:18:21,481 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 15:18:21,510 INFO L503 ceAbstractionStarter]: Automizer considered 36 witness invariants [2024-01-26 15:18:21,511 INFO L504 ceAbstractionStarter]: WitnessConsidered=36 [2024-01-26 15:18:21,512 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 03:18:21 BasicIcfg [2024-01-26 15:18:21,512 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 15:18:21,513 INFO L158 Benchmark]: Toolchain (without parser) took 2865.72ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 102.0MB in the beginning and 150.6MB in the end (delta: -48.6MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:21,513 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:21,513 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:21,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.28ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 76.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-26 15:18:21,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.31ms. Allocated memory is still 159.4MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:21,514 INFO L158 Benchmark]: Boogie Preprocessor took 32.07ms. Allocated memory is still 159.4MB. Free memory was 74.8MB in the beginning and 72.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:21,514 INFO L158 Benchmark]: RCFGBuilder took 452.41ms. Allocated memory is still 159.4MB. Free memory was 72.7MB in the beginning and 47.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-26 15:18:21,515 INFO L158 Benchmark]: TraceAbstraction took 1902.35ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 46.8MB in the beginning and 150.6MB in the end (delta: -103.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:21,516 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 82.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 106.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.28ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 76.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.31ms. Allocated memory is still 159.4MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.07ms. Allocated memory is still 159.4MB. Free memory was 74.8MB in the beginning and 72.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 452.41ms. Allocated memory is still 159.4MB. Free memory was 72.7MB in the beginning and 47.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1902.35ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 46.8MB in the beginning and 150.6MB in the end (delta: -103.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}] [L698] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]]]] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L685] 1 int t = __VERIFIER_nondet_int(); [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L687] COND FALSE 1 !(t == 42) VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]] [L690] 1 t = glob1 VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[1]]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[t]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[t],IntegerLiteral[1]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=0] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]]]] [L691] CALL 1 __VERIFIER_assert(!(t == 0)) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 173 locations, 73 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 709 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 418 mSDsluCounter, 266 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 113 mSDsCounter, 136 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 650 IncrementalHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 136 mSolverCounterUnsat, 153 mSDtfsCounter, 650 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=1, InterpolantAutomatonStates: 27, 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, 0.4s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 196 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-26 15:18:21,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE