./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c --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/chl-sre-subst.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cb09d658 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/weaver/chl-sre-subst.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/chl-sre-subst.wvr.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-cb09d65-m [2024-01-27 23:08:26,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:08:26,864 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:08:26,869 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:08:26,869 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:08:26,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:08:26,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:08:26,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:08:26,894 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:08:26,898 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:08:26,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:08:26,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:08:26,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:08:26,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:08:26,900 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:08:26,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:08:26,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:08:26,901 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:08:26,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:08:26,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:08:26,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:08:26,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:08:26,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:08:26,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:08:26,902 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:08:26,903 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:08:26,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:08:26,903 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:08:26,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:08:26,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:08:26,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:08:26,905 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:08:26,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:08:26,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:08:26,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:08:26,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:08:26,906 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:08:26,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:08:26,906 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:08:26,906 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:08:26,906 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:08:26,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:08:26,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:08:26,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:08:27,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:08:27,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:08:27,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:08:27,137 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:08:27,137 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:08:27,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2024-01-27 23:08:28,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:08:28,323 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:08:28,324 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c [2024-01-27 23:08:28,334 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3af2c006e/8af5d262a62243f28423226caaf9976c/FLAG933094529 [2024-01-27 23:08:28,348 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3af2c006e/8af5d262a62243f28423226caaf9976c [2024-01-27 23:08:28,350 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:08:28,351 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:08:28,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/chl-sre-subst.wvr.yml/witness.yml [2024-01-27 23:08:28,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:08:28,437 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:08:28,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:08:28,438 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:08:28,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:08:28,444 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:08:28" (1/2) ... [2024-01-27 23:08:28,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7963172e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:28, skipping insertion in model container [2024-01-27 23:08:28,447 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:08:28" (1/2) ... [2024-01-27 23:08:28,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6e58d674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:08:28, skipping insertion in model container [2024-01-27 23:08:28,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:08:28" (2/2) ... [2024-01-27 23:08:28,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7963172e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28, skipping insertion in model container [2024-01-27 23:08:28,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:08:28" (2/2) ... [2024-01-27 23:08:28,449 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:08:28,468 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:08:28,469 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-27 23:08:28,469 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_3 == 0 [2024-01-27 23:08:28,469 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_4 == 0 [2024-01-27 23:08:28,470 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] result_5 == 0 [2024-01-27 23:08:28,470 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sponsored_1 == (_Bool)0 || sponsored_1 == (_Bool)1 [2024-01-27 23:08:28,470 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] sponsored_2 == (_Bool)0 [2024-01-27 23:08:28,470 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-01-27 23:08:28,470 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] result_5 == 0 [2024-01-27 23:08:28,470 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] result_3 == 0 [2024-01-27 23:08:28,470 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] sponsored_1 == (_Bool)0 [2024-01-27 23:08:28,471 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] result_4 == 0 [2024-01-27 23:08:28,471 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] sponsored_2 == (_Bool)0 [2024-01-27 23:08:28,471 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-27 23:08:28,471 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-27 23:08:28,471 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] sponsored_1 == (_Bool)0 [2024-01-27 23:08:28,471 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] result_3 == 0 [2024-01-27 23:08:28,471 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] sponsored_0 == (_Bool)0 [2024-01-27 23:08:28,472 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] sponsored_2 == (_Bool)0 [2024-01-27 23:08:28,472 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] result_5 == 0 [2024-01-27 23:08:28,472 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] result_4 == 0 [2024-01-27 23:08:28,472 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] result_5 == 0 [2024-01-27 23:08:28,473 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] result_3 == 0 [2024-01-27 23:08:28,473 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] sponsored_2 == (_Bool)0 || sponsored_2 == (_Bool)1 [2024-01-27 23:08:28,473 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] sponsored_1 == (_Bool)0 || sponsored_1 == (_Bool)1 [2024-01-27 23:08:28,473 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] result_4 == 0 [2024-01-27 23:08:28,473 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-27 23:08:28,473 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 23:08:28,474 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] result_5 == 0 [2024-01-27 23:08:28,474 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] result_4 == 0 [2024-01-27 23:08:28,474 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] sponsored_2 == (_Bool)0 [2024-01-27 23:08:28,474 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] sponsored_0 == (_Bool)0 || sponsored_0 == (_Bool)1 [2024-01-27 23:08:28,474 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] result_3 == 0 [2024-01-27 23:08:28,474 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] sponsored_1 == (_Bool)0 || sponsored_1 == (_Bool)1 [2024-01-27 23:08:28,474 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-27 23:08:28,493 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:08:28,642 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2372,2385] [2024-01-27 23:08:28,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:08:28,660 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 23:08:28,674 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) 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 [2024-01-27 23:08:28,743 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-sre-subst.wvr.c[2372,2385] [2024-01-27 23:08:28,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:08:28,755 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:08:28,761 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28 WrapperNode [2024-01-27 23:08:28,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:08:28,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:08:28,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:08:28,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:08:28,769 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 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,781 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 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,806 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2024-01-27 23:08:28,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:08:28,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:08:28,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:08:28,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:08:28,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,821 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,838 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-27 23:08:28,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,849 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,854 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:08:28,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:08:28,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:08:28,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:08:28,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28" (1/1) ... [2024-01-27 23:08:28,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:08:28,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:08:28,922 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) [2024-01-27 23:08:28,944 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 [2024-01-27 23:08:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:08:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 23:08:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 23:08:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 23:08:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 23:08:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 23:08:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 23:08:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:08:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:08:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:08:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 23:08:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:08:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:08:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:08:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:08:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 23:08:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:08:28,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:08:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:08:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:08:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:08:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 23:08:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:08:28,978 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 23:08:29,062 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:08:29,064 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:08:29,255 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:08:29,256 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:08:29,339 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:08:29,339 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 23:08:29,339 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:08:29 BoogieIcfgContainer [2024-01-27 23:08:29,339 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:08:29,341 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:08:29,341 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:08:29,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:08:29,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:08:28" (1/4) ... [2024-01-27 23:08:29,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e304f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:08:29, skipping insertion in model container [2024-01-27 23:08:29,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:08:28" (2/4) ... [2024-01-27 23:08:29,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e304f2f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:08:29, skipping insertion in model container [2024-01-27 23:08:29,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:08:28" (3/4) ... [2024-01-27 23:08:29,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e304f2f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:08:29, skipping insertion in model container [2024-01-27 23:08:29,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:08:29" (4/4) ... [2024-01-27 23:08:29,346 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-sre-subst.wvr.c [2024-01-27 23:08:29,361 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:08:29,361 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-01-27 23:08:29,361 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:08:29,438 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-27 23:08:29,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 85 places, 75 transitions, 171 flow [2024-01-27 23:08:29,524 INFO L124 PetriNetUnfolderBase]: 0/72 cut-off events. [2024-01-27 23:08:29,525 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-27 23:08:29,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 72 events. 0/72 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-27 23:08:29,527 INFO L82 GeneralOperation]: Start removeDead. Operand has 85 places, 75 transitions, 171 flow [2024-01-27 23:08:29,532 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 71 transitions, 160 flow [2024-01-27 23:08:29,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:08:29,555 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;@5acec04e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:08:29,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-01-27 23:08:29,558 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:08:29,558 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:08:29,559 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:08:29,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:29,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:08:29,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-27 23:08:29,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:29,571 INFO L85 PathProgramCache]: Analyzing trace with hash 9632, now seen corresponding path program 1 times [2024-01-27 23:08:29,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:29,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765872348] [2024-01-27 23:08:29,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:29,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:29,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:29,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:29,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765872348] [2024-01-27 23:08:29,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765872348] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:29,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:29,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:29,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451019600] [2024-01-27 23:08:29,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:29,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:29,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:29,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:29,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:29,847 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 75 [2024-01-27 23:08:29,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 71 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2024-01-27 23:08:29,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:29,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 75 [2024-01-27 23:08:29,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:30,009 INFO L124 PetriNetUnfolderBase]: 138/326 cut-off events. [2024-01-27 23:08:30,010 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-01-27 23:08:30,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 326 events. 138/326 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1124 event pairs, 28 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 430. Up to 179 conditions per place. [2024-01-27 23:08:30,017 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 34 selfloop transitions, 2 changer transitions 0/76 dead transitions. [2024-01-27 23:08:30,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 76 transitions, 248 flow [2024-01-27 23:08:30,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:30,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:30,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-01-27 23:08:30,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7511111111111111 [2024-01-27 23:08:30,030 INFO L175 Difference]: Start difference. First operand has 81 places, 71 transitions, 160 flow. Second operand 3 states and 169 transitions. [2024-01-27 23:08:30,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 76 transitions, 248 flow [2024-01-27 23:08:30,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 76 transitions, 232 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-27 23:08:30,039 INFO L231 Difference]: Finished difference. Result has 73 places, 67 transitions, 144 flow [2024-01-27 23:08:30,041 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=73, PETRI_TRANSITIONS=67} [2024-01-27 23:08:30,046 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -8 predicate places. [2024-01-27 23:08:30,047 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 67 transitions, 144 flow [2024-01-27 23:08:30,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2024-01-27 23:08:30,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:30,048 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 23:08:30,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:08:30,048 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-27 23:08:30,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:30,051 INFO L85 PathProgramCache]: Analyzing trace with hash 298857, now seen corresponding path program 1 times [2024-01-27 23:08:30,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:30,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797596539] [2024-01-27 23:08:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:30,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:30,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:30,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:30,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797596539] [2024-01-27 23:08:30,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797596539] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:30,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:30,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:30,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822938076] [2024-01-27 23:08:30,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:30,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:30,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:30,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:30,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:30,122 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 75 [2024-01-27 23:08:30,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 67 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-01-27 23:08:30,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:30,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 75 [2024-01-27 23:08:30,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:30,209 INFO L124 PetriNetUnfolderBase]: 138/318 cut-off events. [2024-01-27 23:08:30,210 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2024-01-27 23:08:30,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 613 conditions, 318 events. 138/318 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1025 event pairs, 48 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 190. Up to 145 conditions per place. [2024-01-27 23:08:30,214 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 31 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2024-01-27 23:08:30,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 72 transitions, 224 flow [2024-01-27 23:08:30,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:30,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:30,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2024-01-27 23:08:30,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7777777777777778 [2024-01-27 23:08:30,220 INFO L175 Difference]: Start difference. First operand has 73 places, 67 transitions, 144 flow. Second operand 3 states and 175 transitions. [2024-01-27 23:08:30,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 72 transitions, 224 flow [2024-01-27 23:08:30,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 72 transitions, 218 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:30,223 INFO L231 Difference]: Finished difference. Result has 69 places, 63 transitions, 136 flow [2024-01-27 23:08:30,255 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=69, PETRI_TRANSITIONS=63} [2024-01-27 23:08:30,256 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -12 predicate places. [2024-01-27 23:08:30,256 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 63 transitions, 136 flow [2024-01-27 23:08:30,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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) [2024-01-27 23:08:30,256 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:30,256 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 23:08:30,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:08:30,257 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-27 23:08:30,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:30,258 INFO L85 PathProgramCache]: Analyzing trace with hash 9264886, now seen corresponding path program 1 times [2024-01-27 23:08:30,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:30,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532420902] [2024-01-27 23:08:30,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:30,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:30,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:30,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:30,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532420902] [2024-01-27 23:08:30,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532420902] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:30,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:30,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:30,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361080724] [2024-01-27 23:08:30,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:30,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:30,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:30,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:30,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:30,365 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 75 [2024-01-27 23:08:30,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 63 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:08:30,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:30,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 75 [2024-01-27 23:08:30,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:30,415 INFO L124 PetriNetUnfolderBase]: 138/304 cut-off events. [2024-01-27 23:08:30,415 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-01-27 23:08:30,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 595 conditions, 304 events. 138/304 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 921 event pairs, 138 based on Foata normal form. 3/296 useless extension candidates. Maximal degree in co-relation 256. Up to 246 conditions per place. [2024-01-27 23:08:30,417 INFO L140 encePairwiseOnDemand]: 70/75 looper letters, 22 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-01-27 23:08:30,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 60 transitions, 178 flow [2024-01-27 23:08:30,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:30,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:30,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-01-27 23:08:30,418 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2024-01-27 23:08:30,418 INFO L175 Difference]: Start difference. First operand has 69 places, 63 transitions, 136 flow. Second operand 3 states and 168 transitions. [2024-01-27 23:08:30,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 60 transitions, 178 flow [2024-01-27 23:08:30,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 60 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:30,420 INFO L231 Difference]: Finished difference. Result has 66 places, 60 transitions, 130 flow [2024-01-27 23:08:30,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=66, PETRI_TRANSITIONS=60} [2024-01-27 23:08:30,421 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -15 predicate places. [2024-01-27 23:08:30,421 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 60 transitions, 130 flow [2024-01-27 23:08:30,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:08:30,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:30,421 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 23:08:30,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:08:30,422 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-27 23:08:30,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:30,422 INFO L85 PathProgramCache]: Analyzing trace with hash 287211755, now seen corresponding path program 1 times [2024-01-27 23:08:30,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:30,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151163969] [2024-01-27 23:08:30,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:30,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:30,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:30,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:30,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151163969] [2024-01-27 23:08:30,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151163969] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:30,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:30,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:30,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699706812] [2024-01-27 23:08:30,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:30,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:30,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:30,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:30,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:30,485 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 75 [2024-01-27 23:08:30,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 60 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:08:30,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:30,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 75 [2024-01-27 23:08:30,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:30,535 INFO L124 PetriNetUnfolderBase]: 138/303 cut-off events. [2024-01-27 23:08:30,535 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-27 23:08:30,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 303 events. 138/303 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 926 event pairs, 138 based on Foata normal form. 1/296 useless extension candidates. Maximal degree in co-relation 533. Up to 250 conditions per place. [2024-01-27 23:08:30,537 INFO L140 encePairwiseOnDemand]: 72/75 looper letters, 24 selfloop transitions, 2 changer transitions 0/59 dead transitions. [2024-01-27 23:08:30,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 59 transitions, 180 flow [2024-01-27 23:08:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:30,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:30,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-01-27 23:08:30,538 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2024-01-27 23:08:30,539 INFO L175 Difference]: Start difference. First operand has 66 places, 60 transitions, 130 flow. Second operand 3 states and 168 transitions. [2024-01-27 23:08:30,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 59 transitions, 180 flow [2024-01-27 23:08:30,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 59 transitions, 176 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:30,540 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 128 flow [2024-01-27 23:08:30,540 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=128, PETRI_PLACES=65, PETRI_TRANSITIONS=59} [2024-01-27 23:08:30,541 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -16 predicate places. [2024-01-27 23:08:30,541 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 128 flow [2024-01-27 23:08:30,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:08:30,541 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:30,541 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 23:08:30,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 23:08:30,542 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-27 23:08:30,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:30,542 INFO L85 PathProgramCache]: Analyzing trace with hash 313630117, now seen corresponding path program 1 times [2024-01-27 23:08:30,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:30,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134484681] [2024-01-27 23:08:30,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:30,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:30,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:30,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:30,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134484681] [2024-01-27 23:08:30,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134484681] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:30,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:30,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:30,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916015287] [2024-01-27 23:08:30,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:30,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:30,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:30,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:30,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:30,567 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 75 [2024-01-27 23:08:30,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 128 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2024-01-27 23:08:30,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:30,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 75 [2024-01-27 23:08:30,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:30,617 INFO L124 PetriNetUnfolderBase]: 138/309 cut-off events. [2024-01-27 23:08:30,617 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:08:30,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 309 events. 138/309 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1092 event pairs, 20 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 562. Up to 196 conditions per place. [2024-01-27 23:08:30,619 INFO L140 encePairwiseOnDemand]: 68/75 looper letters, 33 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2024-01-27 23:08:30,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 64 transitions, 212 flow [2024-01-27 23:08:30,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:30,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:30,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 169 transitions. [2024-01-27 23:08:30,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7511111111111111 [2024-01-27 23:08:30,620 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 128 flow. Second operand 3 states and 169 transitions. [2024-01-27 23:08:30,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 64 transitions, 212 flow [2024-01-27 23:08:30,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 208 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:30,622 INFO L231 Difference]: Finished difference. Result has 61 places, 55 transitions, 122 flow [2024-01-27 23:08:30,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=122, PETRI_PLACES=61, PETRI_TRANSITIONS=55} [2024-01-27 23:08:30,622 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -20 predicate places. [2024-01-27 23:08:30,622 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 55 transitions, 122 flow [2024-01-27 23:08:30,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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) [2024-01-27 23:08:30,623 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:30,623 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:08:30,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 23:08:30,623 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-27 23:08:30,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:30,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1132599311, now seen corresponding path program 1 times [2024-01-27 23:08:30,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:30,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48981289] [2024-01-27 23:08:30,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:30,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:30,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:30,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:30,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:30,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48981289] [2024-01-27 23:08:30,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48981289] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:30,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:30,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:30,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840906071] [2024-01-27 23:08:30,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:30,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:30,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:30,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:30,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:30,662 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 75 [2024-01-27 23:08:30,662 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 55 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:08:30,662 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:30,662 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 75 [2024-01-27 23:08:30,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:30,717 INFO L124 PetriNetUnfolderBase]: 138/297 cut-off events. [2024-01-27 23:08:30,717 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-01-27 23:08:30,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 590 conditions, 297 events. 138/297 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 920 event pairs, 138 based on Foata normal form. 1/294 useless extension candidates. Maximal degree in co-relation 355. Up to 248 conditions per place. [2024-01-27 23:08:30,719 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 23 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2024-01-27 23:08:30,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 53 transitions, 168 flow [2024-01-27 23:08:30,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:30,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:30,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-01-27 23:08:30,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7466666666666667 [2024-01-27 23:08:30,720 INFO L175 Difference]: Start difference. First operand has 61 places, 55 transitions, 122 flow. Second operand 3 states and 168 transitions. [2024-01-27 23:08:30,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 53 transitions, 168 flow [2024-01-27 23:08:30,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 53 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:30,722 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 116 flow [2024-01-27 23:08:30,722 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2024-01-27 23:08:30,722 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -22 predicate places. [2024-01-27 23:08:30,722 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 116 flow [2024-01-27 23:08:30,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:08:30,723 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:30,723 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:08:30,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 23:08:30,723 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-27 23:08:30,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:30,724 INFO L85 PathProgramCache]: Analyzing trace with hash 750840564, now seen corresponding path program 1 times [2024-01-27 23:08:30,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:30,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122999085] [2024-01-27 23:08:30,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:30,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:08:30,733 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-27 23:08:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-27 23:08:30,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-27 23:08:30,750 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-27 23:08:30,751 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 34 remaining) [2024-01-27 23:08:30,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 34 remaining) [2024-01-27 23:08:30,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 34 remaining) [2024-01-27 23:08:30,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 34 remaining) [2024-01-27 23:08:30,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 34 remaining) [2024-01-27 23:08:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 34 remaining) [2024-01-27 23:08:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 34 remaining) [2024-01-27 23:08:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 34 remaining) [2024-01-27 23:08:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 34 remaining) [2024-01-27 23:08:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 34 remaining) [2024-01-27 23:08:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 34 remaining) [2024-01-27 23:08:30,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 34 remaining) [2024-01-27 23:08:30,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 34 remaining) [2024-01-27 23:08:30,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 34 remaining) [2024-01-27 23:08:30,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 34 remaining) [2024-01-27 23:08:30,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 34 remaining) [2024-01-27 23:08:30,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 34 remaining) [2024-01-27 23:08:30,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 34 remaining) [2024-01-27 23:08:30,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 34 remaining) [2024-01-27 23:08:30,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 34 remaining) [2024-01-27 23:08:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 34 remaining) [2024-01-27 23:08:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 34 remaining) [2024-01-27 23:08:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 34 remaining) [2024-01-27 23:08:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 34 remaining) [2024-01-27 23:08:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 34 remaining) [2024-01-27 23:08:30,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 34 remaining) [2024-01-27 23:08:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 34 remaining) [2024-01-27 23:08:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION (6 of 34 remaining) [2024-01-27 23:08:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 34 remaining) [2024-01-27 23:08:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 34 remaining) [2024-01-27 23:08:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 34 remaining) [2024-01-27 23:08:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 34 remaining) [2024-01-27 23:08:30,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 34 remaining) [2024-01-27 23:08:30,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 34 remaining) [2024-01-27 23:08:30,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 23:08:30,758 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:08:30,763 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 23:08:30,763 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 23:08:30,777 INFO L503 ceAbstractionStarter]: Automizer considered 27 witness invariants [2024-01-27 23:08:30,778 INFO L504 ceAbstractionStarter]: WitnessConsidered=27 [2024-01-27 23:08:30,778 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:08:30 BasicIcfg [2024-01-27 23:08:30,778 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 23:08:30,779 INFO L158 Benchmark]: Toolchain (without parser) took 2341.46ms. Allocated memory was 125.8MB in the beginning and 176.2MB in the end (delta: 50.3MB). Free memory was 71.3MB in the beginning and 127.1MB in the end (delta: -55.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:08:30,779 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:08:30,779 INFO L158 Benchmark]: Witness Parser took 0.39ms. Allocated memory is still 125.8MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:08:30,779 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.09ms. Allocated memory is still 125.8MB. Free memory was 71.0MB in the beginning and 55.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-01-27 23:08:30,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.01ms. Allocated memory is still 125.8MB. Free memory was 55.2MB in the beginning and 53.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:08:30,780 INFO L158 Benchmark]: Boogie Preprocessor took 59.87ms. Allocated memory is still 125.8MB. Free memory was 53.5MB in the beginning and 51.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:08:30,780 INFO L158 Benchmark]: RCFGBuilder took 472.20ms. Allocated memory was 125.8MB in the beginning and 176.2MB in the end (delta: 50.3MB). Free memory was 51.3MB in the beginning and 120.2MB in the end (delta: -68.9MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-01-27 23:08:30,780 INFO L158 Benchmark]: TraceAbstraction took 1437.48ms. Allocated memory is still 176.2MB. Free memory was 119.1MB in the beginning and 127.1MB in the end (delta: -8.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:08:30,781 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 125.8MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.39ms. Allocated memory is still 125.8MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.09ms. Allocated memory is still 125.8MB. Free memory was 71.0MB in the beginning and 55.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.01ms. Allocated memory is still 125.8MB. Free memory was 55.2MB in the beginning and 53.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.87ms. Allocated memory is still 125.8MB. Free memory was 53.5MB in the beginning and 51.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 472.20ms. Allocated memory was 125.8MB in the beginning and 176.2MB in the end (delta: 50.3MB). Free memory was 51.3MB in the beginning and 120.2MB in the end (delta: -68.9MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1437.48ms. Allocated memory is still 176.2MB. Free memory was 119.1MB in the beginning and 127.1MB in the end (delta: -8.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 64]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] int result_3, result_4, result_5; [L39] _Bool sponsored_0, sponsored_1, sponsored_2; [L60] pthread_t t1, t2, t3; VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_4],IntegerLiteral[0]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_5],IntegerLiteral[0]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sponsored_2],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sponsored_0],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[result_3],IntegerLiteral[0]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=0, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] [L63] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[sponsored_1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] [L63] sponsored_0 = __VERIFIER_nondet_bool() [L64] CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[sponsored_0],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[sponsored_0],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] VAL [result_3=0, result_4=0, result_5=0, sponsored_0=2, sponsored_1=0, sponsored_2=0, t1={3:0}, t2={6:0}, t3={5:0}] - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 69]: 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: 68]: 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: 70]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 91 locations, 34 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: 1.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 137 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 288 IncrementalHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 11 mSDtfsCounter, 288 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=160occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-27 23:08:30,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE