./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.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/parallel-simple-equiv.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27552612 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-simple-equiv.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-2755261-m [2024-01-26 15:21:04,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:21:04,756 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:21:04,761 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:21:04,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:21:04,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:21:04,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:21:04,791 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:21:04,792 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:21:04,796 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:21:04,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:21:04,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:21:04,797 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:21:04,798 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:21:04,799 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:21:04,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:21:04,799 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:21:04,800 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:21:04,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:21:04,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:21:04,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:21:04,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:21:04,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:21:04,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:21:04,802 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:21:04,802 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:21:04,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:21:04,803 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:21:04,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:21:04,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:21:04,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:21:04,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:21:04,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:21:04,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:21:04,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:21:04,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:21:04,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:21:04,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:21:04,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:21:04,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:21:04,807 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:21:04,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:21:04,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:21:04,808 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:21:05,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:21:05,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:21:05,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:21:05,069 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:21:05,069 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:21:05,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2024-01-26 15:21:06,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:21:06,531 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:21:06,533 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-simple-equiv.wvr.c [2024-01-26 15:21:06,544 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb45cd68/9edf7239fa35480e8a88538bed143ac0/FLAG132d9fe88 [2024-01-26 15:21:06,560 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb45cd68/9edf7239fa35480e8a88538bed143ac0 [2024-01-26 15:21:06,562 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:21:06,563 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:21:06,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-simple-equiv.wvr.yml/witness.yml [2024-01-26 15:21:06,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:21:06,666 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:21:06,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:21:06,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:21:06,672 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:21:06,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:21:06" (1/2) ... [2024-01-26 15:21:06,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7411ba07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:06, skipping insertion in model container [2024-01-26 15:21:06,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:21:06" (1/2) ... [2024-01-26 15:21:06,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@410b23cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:21:06, skipping insertion in model container [2024-01-26 15:21:06,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:21:06" (2/2) ... [2024-01-26 15:21:06,675 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7411ba07 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06, skipping insertion in model container [2024-01-26 15:21:06,676 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:21:06" (2/2) ... [2024-01-26 15:21:06,676 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:21:06,691 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:21:06,692 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,692 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,692 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,693 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,693 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,693 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,693 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] temp_2 == 0U [2024-01-26 15:21:06,693 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,693 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,693 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] temp_2 == 0U [2024-01-26 15:21:06,693 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,693 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,693 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] temp_2 == 0U [2024-01-26 15:21:06,694 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] x_1 == 0U [2024-01-26 15:21:06,694 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,694 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,694 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-26 15:21:06,694 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )x_0) + (long long )x_1 >= 0LL [2024-01-26 15:21:06,694 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (long long )x_0 - (long long )x_1 >= 0LL [2024-01-26 15:21:06,694 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] x_0 == 0U [2024-01-26 15:21:06,694 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] x_1 == 0U [2024-01-26 15:21:06,694 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] temp_2 == 0U [2024-01-26 15:21:06,694 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (long long )x_0 + (long long )x_1 >= 0LL [2024-01-26 15:21:06,694 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )x_0) - (long long )x_1 >= 0LL [2024-01-26 15:21:06,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:21:06,892 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/parallel-simple-equiv.wvr.c[2251,2264] [2024-01-26 15:21:06,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:21:06,904 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-26 15:21:06,953 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/parallel-simple-equiv.wvr.c[2251,2264] [2024-01-26 15:21:06,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:21:06,976 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:21:06,977 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06 WrapperNode [2024-01-26 15:21:06,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:21:06,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:21:06,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:21:06,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:21:06,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:06,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:07,012 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2024-01-26 15:21:07,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:21:07,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:21:07,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:21:07,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:21:07,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:07,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:07,026 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:07,039 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]. [2024-01-26 15:21:07,039 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:07,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:07,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:07,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:07,048 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:07,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:07,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:21:07,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:21:07,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:21:07,053 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:21:07,054 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (1/1) ... [2024-01-26 15:21:07,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:21:07,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:21:07,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-26 15:21:07,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-26 15:21:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:21:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 15:21:07,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 15:21:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 15:21:07,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 15:21:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-26 15:21:07,108 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-26 15:21:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:21:07,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:21:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:21:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-26 15:21:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:21:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:21:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:21:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:21:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-26 15:21:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-26 15:21:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-26 15:21:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:21:07,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:21:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-26 15:21:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-26 15:21:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-26 15:21:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-26 15:21:07,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:21:07,111 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:21:07,225 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:21:07,227 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:21:07,495 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:21:07,501 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:21:07,638 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:21:07,638 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-26 15:21:07,638 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:21:07 BoogieIcfgContainer [2024-01-26 15:21:07,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:21:07,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:21:07,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:21:07,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:21:07,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:21:06" (1/4) ... [2024-01-26 15:21:07,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470af153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:21:07, skipping insertion in model container [2024-01-26 15:21:07,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:21:06" (2/4) ... [2024-01-26 15:21:07,646 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470af153 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:21:07, skipping insertion in model container [2024-01-26 15:21:07,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:21:06" (3/4) ... [2024-01-26 15:21:07,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470af153 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:21:07, skipping insertion in model container [2024-01-26 15:21:07,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:21:07" (4/4) ... [2024-01-26 15:21:07,650 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2024-01-26 15:21:07,666 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:21:07,666 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2024-01-26 15:21:07,666 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:21:07,726 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-26 15:21:07,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 66 transitions, 153 flow [2024-01-26 15:21:07,810 INFO L124 PetriNetUnfolderBase]: 0/63 cut-off events. [2024-01-26 15:21:07,810 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-26 15:21:07,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 63 events. 0/63 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 109 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-26 15:21:07,812 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 66 transitions, 153 flow [2024-01-26 15:21:07,814 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 62 transitions, 142 flow [2024-01-26 15:21:07,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:21:07,829 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;@ed5441f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:21:07,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-01-26 15:21:07,832 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:21:07,834 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:21:07,834 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:21:07,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:07,835 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:21:07,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-26 15:21:07,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:07,840 INFO L85 PathProgramCache]: Analyzing trace with hash 9772, now seen corresponding path program 1 times [2024-01-26 15:21:07,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:07,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761870885] [2024-01-26 15:21:07,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:07,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:21:08,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:21:08,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:21:08,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761870885] [2024-01-26 15:21:08,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761870885] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:21:08,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:21:08,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:21:08,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896558454] [2024-01-26 15:21:08,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:21:08,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:21:08,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:21:08,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:21:08,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:21:08,210 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 66 [2024-01-26 15:21:08,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:21:08,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:21:08,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 66 [2024-01-26 15:21:08,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:21:08,436 INFO L124 PetriNetUnfolderBase]: 609/1153 cut-off events. [2024-01-26 15:21:08,436 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-01-26 15:21:08,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2207 conditions, 1153 events. 609/1153 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7154 event pairs, 609 based on Foata normal form. 5/927 useless extension candidates. Maximal degree in co-relation 1850. Up to 966 conditions per place. [2024-01-26 15:21:08,453 INFO L140 encePairwiseOnDemand]: 56/66 looper letters, 27 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-01-26 15:21:08,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 54 transitions, 184 flow [2024-01-26 15:21:08,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:21:08,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:21:08,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2024-01-26 15:21:08,466 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-01-26 15:21:08,468 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 142 flow. Second operand 3 states and 121 transitions. [2024-01-26 15:21:08,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 54 transitions, 184 flow [2024-01-26 15:21:08,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 172 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-26 15:21:08,479 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 118 flow [2024-01-26 15:21:08,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2024-01-26 15:21:08,486 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -12 predicate places. [2024-01-26 15:21:08,486 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 118 flow [2024-01-26 15:21:08,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:21:08,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:08,487 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-26 15:21:08,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:21:08,488 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-26 15:21:08,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:08,489 INFO L85 PathProgramCache]: Analyzing trace with hash 9401302, now seen corresponding path program 1 times [2024-01-26 15:21:08,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:08,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299659274] [2024-01-26 15:21:08,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:08,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:21:08,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:21:08,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:21:08,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299659274] [2024-01-26 15:21:08,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299659274] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:21:08,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:21:08,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:21:08,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255499097] [2024-01-26 15:21:08,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:21:08,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:21:08,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:21:08,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:21:08,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:21:08,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 66 [2024-01-26 15:21:08,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 118 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:21:08,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:21:08,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 66 [2024-01-26 15:21:08,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:21:08,827 INFO L124 PetriNetUnfolderBase]: 609/1150 cut-off events. [2024-01-26 15:21:08,827 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-01-26 15:21:08,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2146 conditions, 1150 events. 609/1150 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7187 event pairs, 609 based on Foata normal form. 1/920 useless extension candidates. Maximal degree in co-relation 2131. Up to 963 conditions per place. [2024-01-26 15:21:08,836 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 26 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2024-01-26 15:21:08,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 51 transitions, 168 flow [2024-01-26 15:21:08,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:21:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:21:08,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2024-01-26 15:21:08,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6262626262626263 [2024-01-26 15:21:08,841 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 118 flow. Second operand 3 states and 124 transitions. [2024-01-26 15:21:08,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 51 transitions, 168 flow [2024-01-26 15:21:08,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 51 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:21:08,843 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 112 flow [2024-01-26 15:21:08,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2024-01-26 15:21:08,844 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -15 predicate places. [2024-01-26 15:21:08,845 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 112 flow [2024-01-26 15:21:08,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:21:08,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:08,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:21:08,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:21:08,845 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-26 15:21:08,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:08,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1144083842, now seen corresponding path program 1 times [2024-01-26 15:21:08,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:08,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621773021] [2024-01-26 15:21:08,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:08,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:21:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:21:08,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:21:08,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621773021] [2024-01-26 15:21:08,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621773021] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:21:08,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:21:08,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:21:08,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30770803] [2024-01-26 15:21:08,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:21:08,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:21:08,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:21:08,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:21:08,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:21:08,920 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 66 [2024-01-26 15:21:08,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:21:08,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:21:08,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 66 [2024-01-26 15:21:08,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:21:09,085 INFO L124 PetriNetUnfolderBase]: 609/1149 cut-off events. [2024-01-26 15:21:09,085 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-01-26 15:21:09,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2148 conditions, 1149 events. 609/1149 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 7155 event pairs, 609 based on Foata normal form. 0/919 useless extension candidates. Maximal degree in co-relation 2125. Up to 964 conditions per place. [2024-01-26 15:21:09,094 INFO L140 encePairwiseOnDemand]: 63/66 looper letters, 29 selfloop transitions, 2 changer transitions 0/50 dead transitions. [2024-01-26 15:21:09,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 50 transitions, 172 flow [2024-01-26 15:21:09,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:21:09,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:21:09,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-01-26 15:21:09,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5858585858585859 [2024-01-26 15:21:09,099 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 112 flow. Second operand 3 states and 116 transitions. [2024-01-26 15:21:09,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 50 transitions, 172 flow [2024-01-26 15:21:09,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 50 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:21:09,101 INFO L231 Difference]: Finished difference. Result has 56 places, 50 transitions, 110 flow [2024-01-26 15:21:09,101 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=56, PETRI_TRANSITIONS=50} [2024-01-26 15:21:09,103 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -16 predicate places. [2024-01-26 15:21:09,103 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 50 transitions, 110 flow [2024-01-26 15:21:09,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:21:09,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:09,103 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:21:09,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:21:09,104 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-26 15:21:09,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:09,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1962429827, now seen corresponding path program 1 times [2024-01-26 15:21:09,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:09,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140932277] [2024-01-26 15:21:09,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:09,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:21:09,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:21:09,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:21:09,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140932277] [2024-01-26 15:21:09,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140932277] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:21:09,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:21:09,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:21:09,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132715700] [2024-01-26 15:21:09,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:21:09,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:21:09,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:21:09,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:21:09,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:21:09,297 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 66 [2024-01-26 15:21:09,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 50 transitions, 110 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 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) [2024-01-26 15:21:09,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:21:09,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 66 [2024-01-26 15:21:09,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:21:09,471 INFO L124 PetriNetUnfolderBase]: 609/1068 cut-off events. [2024-01-26 15:21:09,472 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-26 15:21:09,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2064 conditions, 1068 events. 609/1068 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6236 event pairs, 59 based on Foata normal form. 58/979 useless extension candidates. Maximal degree in co-relation 2046. Up to 844 conditions per place. [2024-01-26 15:21:09,479 INFO L140 encePairwiseOnDemand]: 61/66 looper letters, 39 selfloop transitions, 2 changer transitions 0/60 dead transitions. [2024-01-26 15:21:09,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 60 transitions, 214 flow [2024-01-26 15:21:09,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:21:09,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:21:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 168 transitions. [2024-01-26 15:21:09,480 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-01-26 15:21:09,481 INFO L175 Difference]: Start difference. First operand has 56 places, 50 transitions, 110 flow. Second operand 4 states and 168 transitions. [2024-01-26 15:21:09,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 60 transitions, 214 flow [2024-01-26 15:21:09,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 60 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:21:09,482 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 104 flow [2024-01-26 15:21:09,483 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=66, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2024-01-26 15:21:09,483 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -18 predicate places. [2024-01-26 15:21:09,484 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 104 flow [2024-01-26 15:21:09,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 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) [2024-01-26 15:21:09,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:21:09,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:21:09,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 15:21:09,485 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 39 more)] === [2024-01-26 15:21:09,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:21:09,485 INFO L85 PathProgramCache]: Analyzing trace with hash 705782838, now seen corresponding path program 1 times [2024-01-26 15:21:09,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:21:09,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461365343] [2024-01-26 15:21:09,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:21:09,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:21:09,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:21:09,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-26 15:21:09,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:21:09,524 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-26 15:21:09,524 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-26 15:21:09,525 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 42 remaining) [2024-01-26 15:21:09,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 42 remaining) [2024-01-26 15:21:09,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 42 remaining) [2024-01-26 15:21:09,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 42 remaining) [2024-01-26 15:21:09,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 42 remaining) [2024-01-26 15:21:09,527 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 42 remaining) [2024-01-26 15:21:09,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 42 remaining) [2024-01-26 15:21:09,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 42 remaining) [2024-01-26 15:21:09,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 42 remaining) [2024-01-26 15:21:09,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 42 remaining) [2024-01-26 15:21:09,528 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 42 remaining) [2024-01-26 15:21:09,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 42 remaining) [2024-01-26 15:21:09,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 42 remaining) [2024-01-26 15:21:09,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 42 remaining) [2024-01-26 15:21:09,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 42 remaining) [2024-01-26 15:21:09,529 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 42 remaining) [2024-01-26 15:21:09,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 42 remaining) [2024-01-26 15:21:09,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 42 remaining) [2024-01-26 15:21:09,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 42 remaining) [2024-01-26 15:21:09,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 42 remaining) [2024-01-26 15:21:09,530 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 42 remaining) [2024-01-26 15:21:09,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 42 remaining) [2024-01-26 15:21:09,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 42 remaining) [2024-01-26 15:21:09,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 42 remaining) [2024-01-26 15:21:09,531 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 42 remaining) [2024-01-26 15:21:09,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (16 of 42 remaining) [2024-01-26 15:21:09,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 42 remaining) [2024-01-26 15:21:09,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 42 remaining) [2024-01-26 15:21:09,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 42 remaining) [2024-01-26 15:21:09,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 42 remaining) [2024-01-26 15:21:09,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 42 remaining) [2024-01-26 15:21:09,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 42 remaining) [2024-01-26 15:21:09,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 42 remaining) [2024-01-26 15:21:09,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 42 remaining) [2024-01-26 15:21:09,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 42 remaining) [2024-01-26 15:21:09,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 42 remaining) [2024-01-26 15:21:09,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 42 remaining) [2024-01-26 15:21:09,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 42 remaining) [2024-01-26 15:21:09,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 42 remaining) [2024-01-26 15:21:09,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 42 remaining) [2024-01-26 15:21:09,534 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 42 remaining) [2024-01-26 15:21:09,535 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 42 remaining) [2024-01-26 15:21:09,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-26 15:21:09,535 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-01-26 15:21:09,541 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 15:21:09,541 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 15:21:09,568 INFO L503 ceAbstractionStarter]: Automizer considered 24 witness invariants [2024-01-26 15:21:09,568 INFO L504 ceAbstractionStarter]: WitnessConsidered=24 [2024-01-26 15:21:09,569 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 03:21:09 BasicIcfg [2024-01-26 15:21:09,570 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 15:21:09,570 INFO L158 Benchmark]: Toolchain (without parser) took 2903.96ms. Allocated memory was 140.5MB in the beginning and 222.3MB in the end (delta: 81.8MB). Free memory was 83.6MB in the beginning and 145.0MB in the end (delta: -61.4MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-01-26 15:21:09,570 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:21:09,571 INFO L158 Benchmark]: Witness Parser took 0.47ms. Allocated memory is still 140.5MB. Free memory was 86.8MB in the beginning and 86.8MB in the end (delta: 74.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:21:09,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.27ms. Allocated memory is still 140.5MB. Free memory was 83.2MB in the beginning and 68.1MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-01-26 15:21:09,573 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.68ms. Allocated memory is still 140.5MB. Free memory was 68.1MB in the beginning and 66.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:21:09,573 INFO L158 Benchmark]: Boogie Preprocessor took 39.02ms. Allocated memory is still 140.5MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:21:09,573 INFO L158 Benchmark]: RCFGBuilder took 586.22ms. Allocated memory was 140.5MB in the beginning and 222.3MB in the end (delta: 81.8MB). Free memory was 63.9MB in the beginning and 172.7MB in the end (delta: -108.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-01-26 15:21:09,574 INFO L158 Benchmark]: TraceAbstraction took 1928.78ms. Allocated memory is still 222.3MB. Free memory was 172.7MB in the beginning and 145.0MB in the end (delta: 27.7MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-01-26 15:21:09,576 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 140.5MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.47ms. Allocated memory is still 140.5MB. Free memory was 86.8MB in the beginning and 86.8MB in the end (delta: 74.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.27ms. Allocated memory is still 140.5MB. Free memory was 83.2MB in the beginning and 68.1MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.68ms. Allocated memory is still 140.5MB. Free memory was 68.1MB in the beginning and 66.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.02ms. Allocated memory is still 140.5MB. Free memory was 66.4MB in the beginning and 64.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 586.22ms. Allocated memory was 140.5MB in the beginning and 222.3MB in the end (delta: 81.8MB). Free memory was 63.9MB in the beginning and 172.7MB in the end (delta: -108.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1928.78ms. Allocated memory is still 222.3MB. Free memory was 172.7MB in the beginning and 145.0MB in the end (delta: 27.7MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int x_0, x_1, temp_2; [L64] 0 pthread_t t1, t2, t3; VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_0],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[x_0]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_0=0, x_1=0] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x_0]]],CastExpression[ACSLType[long long],IdentifierExpression[x_1]]],IntegerLiteral[0LL]]]] [L67] 0 x_0 = __VERIFIER_nondet_uint() [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, temp_2=0, x_1=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] [L68] 0 x_1 = __VERIFIER_nondet_uint() [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] [L69] 0 temp_2 = __VERIFIER_nondet_uint() [L72] CALL 0 assume_abort_if_not( x_0 == x_1 ) [L35] COND FALSE 0 !(!cond) [L72] RET 0 assume_abort_if_not( x_0 == x_1 ) [L74] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={6:0}, t2={5:0}, t3={3:0}, x_0=0, x_1=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, x_0=0, x_1=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L42] 1 x_0++ [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[temp_2],IntegerLiteral[0U]]]] VAL [_argptr={0:0}, _argptr={0:0}, temp_2=1, x_0=1, x_1=0] - UnprovableResult [Line: 41]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - 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: 48]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 49]: 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: 51]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 55]: 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: 57]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: 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: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 82]: 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: 74]: 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: 76]: 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: 75]: 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, 101 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: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259 IncrementalHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 20 mSDtfsCounter, 259 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-26 15:21:09,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE