./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_52-refine-protected-loop2-small_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_52-refine-protected-loop2-small_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-ab2e0ac-m [2024-01-29 14:16:49,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:16:49,570 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:16:49,573 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:16:49,574 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:16:49,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:16:49,596 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:16:49,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:16:49,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:16:49,597 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:16:49,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:16:49,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:16:49,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:16:49,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:16:49,598 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:16:49,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:16:49,599 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:16:49,599 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:16:49,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:16:49,600 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:16:49,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:16:49,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:16:49,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:16:49,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:16:49,601 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:16:49,602 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:16:49,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:16:49,602 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:16:49,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:16:49,603 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:16:49,603 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:16:49,603 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:16:49,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:49,604 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:16:49,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:16:49,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:16:49,605 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:16:49,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:16:49,605 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:16:49,605 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:16:49,605 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:16:49,606 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:16:49,606 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:16:49,606 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:16:49,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:16:49,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:16:49,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:16:49,787 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:16:49,788 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:16:49,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_52-refine-protected-loop2-small_true.yml/witness.yml [2024-01-29 14:16:49,894 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:16:49,894 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:16:49,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2024-01-29 14:16:50,914 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:16:51,312 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:16:51,312 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i [2024-01-29 14:16:51,323 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4209a016/2ee5c21f6b464bf59f8889d888a13464/FLAGc81cf3bd7 [2024-01-29 14:16:51,334 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4209a016/2ee5c21f6b464bf59f8889d888a13464 [2024-01-29 14:16:51,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:16:51,336 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:16:51,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:51,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:16:51,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:16:51,341 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:49" (1/2) ... [2024-01-29 14:16:51,342 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb85c89 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:51, skipping insertion in model container [2024-01-29 14:16:51,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:49" (1/2) ... [2024-01-29 14:16:51,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3b6dd3ef and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:51, skipping insertion in model container [2024-01-29 14:16:51,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:51" (2/2) ... [2024-01-29 14:16:51,344 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb85c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51, skipping insertion in model container [2024-01-29 14:16:51,344 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:51" (2/2) ... [2024-01-29 14:16:51,344 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:16:51,370 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:16:51,371 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g <= 999 [2024-01-29 14:16:51,371 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g <= 32767 [2024-01-29 14:16:51,371 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g == 0 || g == 999 [2024-01-29 14:16:51,371 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-29 14:16:51,371 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] 0 <= g [2024-01-29 14:16:51,371 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g % 999 == 0 [2024-01-29 14:16:51,371 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g == 1000 [2024-01-29 14:16:51,372 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-29 14:16:51,372 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-29 14:16:51,372 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] g == 999 [2024-01-29 14:16:51,372 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-29 14:16:51,372 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-29 14:16:51,372 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L692] (unsigned long )arg == 0UL [2024-01-29 14:16:51,372 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L692] g == 1000 [2024-01-29 14:16:51,373 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 1000 [2024-01-29 14:16:51,373 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g == 1000 [2024-01-29 14:16:51,373 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] (unsigned long )arg == 0UL [2024-01-29 14:16:51,373 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g == 0 [2024-01-29 14:16:51,373 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g == 1000 [2024-01-29 14:16:51,373 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-29 14:16:51,373 INFO L98 nessWitnessExtractor]: Loop invariant at [L686-L696] (unsigned long )arg == 0UL [2024-01-29 14:16:51,402 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:16:51,548 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i[1105,1118] [2024-01-29 14:16:51,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:51,661 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:16:51,676 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_52-refine-protected-loop2-small_true.i[1105,1118] [2024-01-29 14:16:51,677 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:16:51,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:51,781 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:16:51,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51 WrapperNode [2024-01-29 14:16:51,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:51,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:51,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:16:51,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:16:51,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,832 INFO L138 Inliner]: procedures = 163, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-01-29 14:16:51,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:51,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:16:51,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:16:51,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:16:51,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,846 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,860 INFO L175 MemorySlicer]: Split 13 memory accesses to 4 slices as follows [2, 5, 5, 1]. 38 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2024-01-29 14:16:51,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,869 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,870 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:16:51,874 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:16:51,874 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:16:51,874 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:16:51,875 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (1/1) ... [2024-01-29 14:16:51,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:51,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:16:51,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 14:16:51,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 14:16:51,943 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-01-29 14:16:51,943 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-01-29 14:16:51,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:16:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:16:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:16:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:16:51,945 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 14:16:51,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:16:51,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:16:51,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:16:51,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:16:51,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:16:51,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:16:51,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:16:51,948 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 14:16:51,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:16:51,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:16:51,949 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:16:52,047 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:16:52,049 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:16:52,228 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:16:52,232 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:16:52,363 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:16:52,363 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-01-29 14:16:52,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:52 BoogieIcfgContainer [2024-01-29 14:16:52,365 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:16:52,369 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:16:52,369 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:16:52,372 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:16:52,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:49" (1/4) ... [2024-01-29 14:16:52,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8ee9ca and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:16:52, skipping insertion in model container [2024-01-29 14:16:52,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:16:51" (2/4) ... [2024-01-29 14:16:52,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8ee9ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:16:52, skipping insertion in model container [2024-01-29 14:16:52,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:51" (3/4) ... [2024-01-29 14:16:52,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8ee9ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:16:52, skipping insertion in model container [2024-01-29 14:16:52,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:52" (4/4) ... [2024-01-29 14:16:52,377 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_52-refine-protected-loop2-small_true.i [2024-01-29 14:16:52,394 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:16:52,396 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2024-01-29 14:16:52,396 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:16:52,478 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:16:52,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 62 transitions, 128 flow [2024-01-29 14:16:52,554 INFO L124 PetriNetUnfolderBase]: 3/61 cut-off events. [2024-01-29 14:16:52,555 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:52,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 41 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2024-01-29 14:16:52,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 62 transitions, 128 flow [2024-01-29 14:16:52,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 60 transitions, 123 flow [2024-01-29 14:16:52,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:16:52,574 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;@16e2c59a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:16:52,574 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-01-29 14:16:52,579 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:16:52,579 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:16:52,579 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:52,579 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:52,580 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:16:52,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 14:16:52,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:52,586 INFO L85 PathProgramCache]: Analyzing trace with hash 8050, now seen corresponding path program 1 times [2024-01-29 14:16:52,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:52,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843152036] [2024-01-29 14:16:52,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:52,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:52,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:52,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:52,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:52,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843152036] [2024-01-29 14:16:52,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843152036] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:52,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:52,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:16:52,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329243774] [2024-01-29 14:16:52,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:52,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:52,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:52,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:52,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:52,876 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 62 [2024-01-29 14:16:52,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 60 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:52,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:52,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 62 [2024-01-29 14:16:52,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:52,938 INFO L124 PetriNetUnfolderBase]: 20/139 cut-off events. [2024-01-29 14:16:52,939 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:52,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 139 events. 20/139 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 286 event pairs, 1 based on Foata normal form. 6/118 useless extension candidates. Maximal degree in co-relation 189. Up to 50 conditions per place. [2024-01-29 14:16:52,943 INFO L140 encePairwiseOnDemand]: 53/62 looper letters, 21 selfloop transitions, 2 changer transitions 0/61 dead transitions. [2024-01-29 14:16:52,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 61 transitions, 171 flow [2024-01-29 14:16:52,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:52,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:52,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 147 transitions. [2024-01-29 14:16:52,956 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7903225806451613 [2024-01-29 14:16:52,957 INFO L175 Difference]: Start difference. First operand has 61 places, 60 transitions, 123 flow. Second operand 3 states and 147 transitions. [2024-01-29 14:16:52,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 61 transitions, 171 flow [2024-01-29 14:16:52,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 61 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:16:52,964 INFO L231 Difference]: Finished difference. Result has 62 places, 59 transitions, 138 flow [2024-01-29 14:16:52,966 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=62, PETRI_TRANSITIONS=59} [2024-01-29 14:16:52,969 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, 1 predicate places. [2024-01-29 14:16:52,970 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 59 transitions, 138 flow [2024-01-29 14:16:52,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:52,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:52,971 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:16:52,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:16:52,971 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 14:16:52,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:52,972 INFO L85 PathProgramCache]: Analyzing trace with hash 240154341, now seen corresponding path program 1 times [2024-01-29 14:16:52,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:52,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773863566] [2024-01-29 14:16:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:52,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:53,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:53,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:53,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773863566] [2024-01-29 14:16:53,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773863566] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:53,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:53,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:53,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939328640] [2024-01-29 14:16:53,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:53,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:53,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:53,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:53,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:53,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 62 [2024-01-29 14:16:53,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 59 transitions, 138 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:53,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:53,179 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 62 [2024-01-29 14:16:53,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:53,260 INFO L124 PetriNetUnfolderBase]: 13/121 cut-off events. [2024-01-29 14:16:53,261 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 14:16:53,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 121 events. 13/121 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 210 event pairs, 0 based on Foata normal form. 24/137 useless extension candidates. Maximal degree in co-relation 166. Up to 31 conditions per place. [2024-01-29 14:16:53,263 INFO L140 encePairwiseOnDemand]: 50/62 looper letters, 13 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-01-29 14:16:53,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 50 transitions, 150 flow [2024-01-29 14:16:53,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:53,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:53,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 172 transitions. [2024-01-29 14:16:53,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6935483870967742 [2024-01-29 14:16:53,270 INFO L175 Difference]: Start difference. First operand has 62 places, 59 transitions, 138 flow. Second operand 4 states and 172 transitions. [2024-01-29 14:16:53,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 50 transitions, 150 flow [2024-01-29 14:16:53,271 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 50 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:16:53,272 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 120 flow [2024-01-29 14:16:53,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=120, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2024-01-29 14:16:53,273 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -7 predicate places. [2024-01-29 14:16:53,273 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 120 flow [2024-01-29 14:16:53,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:53,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:53,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:53,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:16:53,274 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr9ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 14:16:53,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:53,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1940718065, now seen corresponding path program 1 times [2024-01-29 14:16:53,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:53,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657557259] [2024-01-29 14:16:53,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:53,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:53,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:53,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:53,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:53,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657557259] [2024-01-29 14:16:53,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657557259] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:53,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:53,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:53,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974911283] [2024-01-29 14:16:53,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:53,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:53,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:53,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:53,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:53,362 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 62 [2024-01-29 14:16:53,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:53,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:53,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 62 [2024-01-29 14:16:53,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:53,409 INFO L124 PetriNetUnfolderBase]: 19/112 cut-off events. [2024-01-29 14:16:53,409 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 14:16:53,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 112 events. 19/112 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 152 event pairs, 13 based on Foata normal form. 2/108 useless extension candidates. Maximal degree in co-relation 178. Up to 44 conditions per place. [2024-01-29 14:16:53,410 INFO L140 encePairwiseOnDemand]: 56/62 looper letters, 17 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-01-29 14:16:53,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 154 flow [2024-01-29 14:16:53,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:53,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:53,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-01-29 14:16:53,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7365591397849462 [2024-01-29 14:16:53,413 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 120 flow. Second operand 3 states and 137 transitions. [2024-01-29 14:16:53,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 154 flow [2024-01-29 14:16:53,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 151 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:53,415 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 115 flow [2024-01-29 14:16:53,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=115, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2024-01-29 14:16:53,416 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -10 predicate places. [2024-01-29 14:16:53,417 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 115 flow [2024-01-29 14:16:53,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:53,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:53,418 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:53,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:16:53,419 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 14:16:53,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:53,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1014263892, now seen corresponding path program 1 times [2024-01-29 14:16:53,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:53,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275699763] [2024-01-29 14:16:53,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:53,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:53,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:53,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275699763] [2024-01-29 14:16:53,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275699763] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:53,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:53,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:16:53,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629302395] [2024-01-29 14:16:53,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:53,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:53,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:53,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:53,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:53,563 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 62 [2024-01-29 14:16:53,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 115 flow. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:53,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:53,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 62 [2024-01-29 14:16:53,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:53,680 INFO L124 PetriNetUnfolderBase]: 20/108 cut-off events. [2024-01-29 14:16:53,681 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-01-29 14:16:53,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 108 events. 20/108 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 1 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 183. Up to 47 conditions per place. [2024-01-29 14:16:53,682 INFO L140 encePairwiseOnDemand]: 58/62 looper letters, 22 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2024-01-29 14:16:53,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 46 transitions, 167 flow [2024-01-29 14:16:53,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:53,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:53,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 174 transitions. [2024-01-29 14:16:53,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7016129032258065 [2024-01-29 14:16:53,683 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 115 flow. Second operand 4 states and 174 transitions. [2024-01-29 14:16:53,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 46 transitions, 167 flow [2024-01-29 14:16:53,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 161 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:53,685 INFO L231 Difference]: Finished difference. Result has 50 places, 43 transitions, 111 flow [2024-01-29 14:16:53,685 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=111, PETRI_PLACES=50, PETRI_TRANSITIONS=43} [2024-01-29 14:16:53,686 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -11 predicate places. [2024-01-29 14:16:53,686 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 43 transitions, 111 flow [2024-01-29 14:16:53,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:53,686 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:53,686 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:53,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:16:53,687 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr15ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-29 14:16:53,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:53,687 INFO L85 PathProgramCache]: Analyzing trace with hash -213755017, now seen corresponding path program 1 times [2024-01-29 14:16:53,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:53,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364034612] [2024-01-29 14:16:53,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:53,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:53,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:53,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:53,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:53,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364034612] [2024-01-29 14:16:53,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364034612] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:53,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:53,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:53,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306808913] [2024-01-29 14:16:53,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:53,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:53,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:53,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:53,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:53,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 62 [2024-01-29 14:16:53,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 43 transitions, 111 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:53,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:53,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 62 [2024-01-29 14:16:53,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:53,880 INFO L124 PetriNetUnfolderBase]: 17/95 cut-off events. [2024-01-29 14:16:53,880 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-01-29 14:16:53,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 95 events. 17/95 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 86 event pairs, 3 based on Foata normal form. 8/99 useless extension candidates. Maximal degree in co-relation 151. Up to 24 conditions per place. [2024-01-29 14:16:53,881 INFO L140 encePairwiseOnDemand]: 54/62 looper letters, 0 selfloop transitions, 0 changer transitions 42/42 dead transitions. [2024-01-29 14:16:53,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 42 transitions, 143 flow [2024-01-29 14:16:53,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:53,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:53,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 164 transitions. [2024-01-29 14:16:53,882 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6612903225806451 [2024-01-29 14:16:53,882 INFO L175 Difference]: Start difference. First operand has 50 places, 43 transitions, 111 flow. Second operand 4 states and 164 transitions. [2024-01-29 14:16:53,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 42 transitions, 143 flow [2024-01-29 14:16:53,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 137 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 14:16:53,883 INFO L231 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2024-01-29 14:16:53,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2024-01-29 14:16:53,884 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -17 predicate places. [2024-01-29 14:16:53,884 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 0 transitions, 0 flow [2024-01-29 14:16:53,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:53,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 42 remaining) [2024-01-29 14:16:53,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 42 remaining) [2024-01-29 14:16:53,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 42 remaining) [2024-01-29 14:16:53,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 42 remaining) [2024-01-29 14:16:53,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 42 remaining) [2024-01-29 14:16:53,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 42 remaining) [2024-01-29 14:16:53,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 42 remaining) [2024-01-29 14:16:53,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 42 remaining) [2024-01-29 14:16:53,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 42 remaining) [2024-01-29 14:16:53,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 42 remaining) [2024-01-29 14:16:53,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr8ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 42 remaining) [2024-01-29 14:16:53,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr9ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 42 remaining) [2024-01-29 14:16:53,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr10ASSERT_VIOLATIONERROR_FUNCTION (29 of 42 remaining) [2024-01-29 14:16:53,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr11ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 42 remaining) [2024-01-29 14:16:53,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr12ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 42 remaining) [2024-01-29 14:16:53,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr13ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 42 remaining) [2024-01-29 14:16:53,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr15ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 42 remaining) [2024-01-29 14:16:53,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr14ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 42 remaining) [2024-01-29 14:16:53,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr16ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 42 remaining) [2024-01-29 14:16:53,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr17ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 42 remaining) [2024-01-29 14:16:53,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr18ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 42 remaining) [2024-01-29 14:16:53,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr19ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 42 remaining) [2024-01-29 14:16:53,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 42 remaining) [2024-01-29 14:16:53,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 42 remaining) [2024-01-29 14:16:53,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 42 remaining) [2024-01-29 14:16:53,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr3ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 42 remaining) [2024-01-29 14:16:53,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr4ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 42 remaining) [2024-01-29 14:16:53,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr5ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 42 remaining) [2024-01-29 14:16:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr6ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 42 remaining) [2024-01-29 14:16:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr7ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 42 remaining) [2024-01-29 14:16:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr8ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 42 remaining) [2024-01-29 14:16:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr9ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 42 remaining) [2024-01-29 14:16:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr10ASSERT_VIOLATIONERROR_FUNCTION (9 of 42 remaining) [2024-01-29 14:16:53,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr11ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 42 remaining) [2024-01-29 14:16:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr12ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 42 remaining) [2024-01-29 14:16:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr13ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 42 remaining) [2024-01-29 14:16:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr15ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 42 remaining) [2024-01-29 14:16:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr14ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 42 remaining) [2024-01-29 14:16:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr16ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 42 remaining) [2024-01-29 14:16:53,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr17ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 42 remaining) [2024-01-29 14:16:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr18ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 42 remaining) [2024-01-29 14:16:53,898 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr19ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 42 remaining) [2024-01-29 14:16:53,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:16:53,898 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-29 14:16:53,902 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:16:53,916 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:16:53,920 INFO L503 ceAbstractionStarter]: Automizer considered 20 witness invariants [2024-01-29 14:16:53,920 INFO L504 ceAbstractionStarter]: WitnessConsidered=20 [2024-01-29 14:16:53,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:16:53 BasicIcfg [2024-01-29 14:16:53,921 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:16:53,921 INFO L158 Benchmark]: Toolchain (without parser) took 2585.31ms. Allocated memory was 190.8MB in the beginning and 247.5MB in the end (delta: 56.6MB). Free memory was 157.5MB in the beginning and 178.6MB in the end (delta: -21.2MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2024-01-29 14:16:53,921 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:53,922 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:53,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.78ms. Allocated memory is still 190.8MB. Free memory was 157.5MB in the beginning and 134.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:53,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.93ms. Allocated memory is still 190.8MB. Free memory was 134.4MB in the beginning and 132.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:53,922 INFO L158 Benchmark]: Boogie Preprocessor took 37.55ms. Allocated memory is still 190.8MB. Free memory was 132.3MB in the beginning and 130.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:53,923 INFO L158 Benchmark]: RCFGBuilder took 491.48ms. Allocated memory is still 190.8MB. Free memory was 129.5MB in the beginning and 102.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-01-29 14:16:53,923 INFO L158 Benchmark]: TraceAbstraction took 1551.60ms. Allocated memory was 190.8MB in the beginning and 247.5MB in the end (delta: 56.6MB). Free memory was 101.5MB in the beginning and 178.6MB in the end (delta: -77.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:53,924 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 125.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.78ms. Allocated memory is still 190.8MB. Free memory was 157.5MB in the beginning and 134.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.93ms. Allocated memory is still 190.8MB. Free memory was 134.4MB in the beginning and 132.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.55ms. Allocated memory is still 190.8MB. Free memory was 132.3MB in the beginning and 130.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 491.48ms. Allocated memory is still 190.8MB. Free memory was 129.5MB in the beginning and 102.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1551.60ms. Allocated memory was 190.8MB in the beginning and 247.5MB in the end (delta: 56.6MB). Free memory was 101.5MB in the beginning and 178.6MB in the end (delta: -77.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 42 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: 1.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 274 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 327 IncrementalHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 52 mSDtfsCounter, 327 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=138occurred in iteration=1, 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, 0.4s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 21 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-29 14:16:53,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE