./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-misc-2.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-misc-2.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 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-misc-2.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-misc-2.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-3d25acf-m [2024-01-30 14:23:59,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:23:59,133 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:23:59,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:23:59,138 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:23:59,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:23:59,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:23:59,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:23:59,163 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:23:59,166 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:23:59,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:23:59,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:23:59,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:23:59,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:23:59,169 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:23:59,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:23:59,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:23:59,169 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:23:59,170 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:23:59,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:23:59,170 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:23:59,171 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:23:59,171 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:23:59,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:23:59,171 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:23:59,172 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:23:59,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:23:59,172 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:23:59,173 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:23:59,173 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:23:59,174 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:23:59,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:23:59,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:23:59,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:23:59,175 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:23:59,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:23:59,175 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:23:59,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:23:59,175 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:23:59,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:23:59,176 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:23:59,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:23:59,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:23:59,176 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:23:59,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:23:59,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:23:59,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:23:59,414 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:23:59,414 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:23:59,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c [2024-01-30 14:24:00,630 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:24:00,794 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:24:00,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c [2024-01-30 14:24:00,800 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3daafad8/69e49de2b7844fc599abff776fdbfb4d/FLAG39ef956cb [2024-01-30 14:24:00,811 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3daafad8/69e49de2b7844fc599abff776fdbfb4d [2024-01-30 14:24:00,814 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:24:00,814 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:24:00,815 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-misc-2.wvr.yml/witness.yml [2024-01-30 14:24:00,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:24:00,931 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:24:00,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:24:00,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:24:00,936 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:24:00,936 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:24:00" (1/2) ... [2024-01-30 14:24:00,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67043e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:00, skipping insertion in model container [2024-01-30 14:24:00,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:24:00" (1/2) ... [2024-01-30 14:24:00,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@a0567dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:00, skipping insertion in model container [2024-01-30 14:24:00,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:24:00" (2/2) ... [2024-01-30 14:24:00,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67043e8f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:00, skipping insertion in model container [2024-01-30 14:24:00,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:24:00" (2/2) ... [2024-01-30 14:24:00,941 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:24:00,969 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:24:00,974 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] ((((i1 == 0U) && (i2 == 0U)) && (N == 0U)) && (d1 == (_Bool)0)) && (d2 == (_Bool)0) [2024-01-30 14:24:00,974 INFO L98 nessWitnessExtractor]: Loop invariant at [L42-L55] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,974 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,974 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (((((pos == 0U) && (i1 == 0U)) && (i2 == 0U)) && (N == 0U)) && (d1 == (_Bool)0)) && (d2 == (_Bool)0) [2024-01-30 14:24:00,974 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,975 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,975 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] ((N == 0U) && (d1 == (_Bool)0)) && (d2 == (_Bool)0) [2024-01-30 14:24:00,975 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,975 INFO L98 nessWitnessExtractor]: Loop invariant at [L61-L74] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,976 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,976 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,976 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,976 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] (d1 == (_Bool)0) && (d2 == (_Bool)0) [2024-01-30 14:24:00,976 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,976 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] ((d2 == (_Bool)0) && (d1 == (_Bool)0 || d1 == (_Bool)1)) && (val == (_Bool)0 || val == (_Bool)1) [2024-01-30 14:24:00,976 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,976 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,977 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,977 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L71] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,977 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L52] (((N == 0U) && (d1 == (_Bool)0)) && (d2 == (_Bool)0)) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:24:00,977 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,977 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,978 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,978 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,978 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (((i2 == 0U) && (N == 0U)) && (d1 == (_Bool)0)) && (d2 == (_Bool)0) [2024-01-30 14:24:00,978 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] (d1 == (_Bool)0 || d1 == (_Bool)1) && (d2 == (_Bool)0 || d2 == (_Bool)1) [2024-01-30 14:24:00,978 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,978 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (d2 == (_Bool)0) && (d1 == (_Bool)0 || d1 == (_Bool)1) [2024-01-30 14:24:00,978 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] (d1 == (_Bool)0 || d1 == (_Bool)1) && (d2 == (_Bool)0 || d2 == (_Bool)1) [2024-01-30 14:24:00,978 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,979 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-30 14:24:00,998 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:24:01,153 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-misc-2.wvr.c[2580,2593] [2024-01-30 14:24:01,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:24:01,165 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:24:01,173 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-30 14:24:01,271 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-misc-2.wvr.c[2580,2593] [2024-01-30 14:24:01,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:24:01,283 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:24:01,283 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01 WrapperNode [2024-01-30 14:24:01,284 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:24:01,284 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:24:01,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:24:01,285 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:24:01,290 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 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,308 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 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,332 INFO L138 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2024-01-30 14:24:01,332 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:24:01,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:24:01,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:24:01,334 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:24:01,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,352 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,372 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-30 14:24:01,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,374 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,393 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,394 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:24:01,399 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:24:01,399 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:24:01,399 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:24:01,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01" (1/1) ... [2024-01-30 14:24:01,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:24:01,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:24:01,458 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) [2024-01-30 14:24:01,480 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 [2024-01-30 14:24:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:24:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:24:01,491 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:24:01,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:24:01,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:24:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:24:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:24:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:24:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:24:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:24:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:24:01,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:24:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-30 14:24:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-30 14:24:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:24:01,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:24:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:24:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:24:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:24:01,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:24:01,495 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:24:01,598 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:24:01,600 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:24:02,088 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:24:02,088 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:24:02,232 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:24:02,232 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-30 14:24:02,232 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:24:02 BoogieIcfgContainer [2024-01-30 14:24:02,232 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:24:02,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:24:02,234 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:24:02,238 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:24:02,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:24:00" (1/4) ... [2024-01-30 14:24:02,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b36545b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:24:02, skipping insertion in model container [2024-01-30 14:24:02,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:24:00" (2/4) ... [2024-01-30 14:24:02,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b36545b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:24:02, skipping insertion in model container [2024-01-30 14:24:02,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:01" (3/4) ... [2024-01-30 14:24:02,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b36545b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:24:02, skipping insertion in model container [2024-01-30 14:24:02,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:24:02" (4/4) ... [2024-01-30 14:24:02,246 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2.wvr.c [2024-01-30 14:24:02,258 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:24:02,272 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2024-01-30 14:24:02,272 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:24:02,326 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-30 14:24:02,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 86 places, 83 transitions, 180 flow [2024-01-30 14:24:02,433 INFO L124 PetriNetUnfolderBase]: 4/81 cut-off events. [2024-01-30 14:24:02,433 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-30 14:24:02,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 81 events. 4/81 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 231 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2024-01-30 14:24:02,438 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 83 transitions, 180 flow [2024-01-30 14:24:02,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 80 transitions, 172 flow [2024-01-30 14:24:02,453 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:24:02,459 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;@7ffae224, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:24:02,460 INFO L358 AbstractCegarLoop]: Starting to check reachability of 59 error locations. [2024-01-30 14:24:02,461 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:24:02,461 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:24:02,462 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:24:02,462 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:02,462 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:24:02,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-30 14:24:02,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:02,468 INFO L85 PathProgramCache]: Analyzing trace with hash 12399, now seen corresponding path program 1 times [2024-01-30 14:24:02,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:02,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336119518] [2024-01-30 14:24:02,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:02,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:02,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:02,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:02,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336119518] [2024-01-30 14:24:02,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336119518] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:02,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:02,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:24:02,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677075774] [2024-01-30 14:24:02,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:02,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:24:02,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:02,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:24:02,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:24:03,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 83 [2024-01-30 14:24:03,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2024-01-30 14:24:03,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:03,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 83 [2024-01-30 14:24:03,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:03,233 INFO L124 PetriNetUnfolderBase]: 421/888 cut-off events. [2024-01-30 14:24:03,234 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-01-30 14:24:03,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1596 conditions, 888 events. 421/888 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5570 event pairs, 297 based on Foata normal form. 0/595 useless extension candidates. Maximal degree in co-relation 1446. Up to 671 conditions per place. [2024-01-30 14:24:03,272 INFO L140 encePairwiseOnDemand]: 76/83 looper letters, 42 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2024-01-30 14:24:03,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 75 transitions, 250 flow [2024-01-30 14:24:03,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:03,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:03,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2024-01-30 14:24:03,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5943775100401606 [2024-01-30 14:24:03,286 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 172 flow. Second operand 3 states and 148 transitions. [2024-01-30 14:24:03,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 75 transitions, 250 flow [2024-01-30 14:24:03,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 75 transitions, 242 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-30 14:24:03,298 INFO L231 Difference]: Finished difference. Result has 76 places, 75 transitions, 158 flow [2024-01-30 14:24:03,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=76, PETRI_TRANSITIONS=75} [2024-01-30 14:24:03,304 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -7 predicate places. [2024-01-30 14:24:03,304 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 158 flow [2024-01-30 14:24:03,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2024-01-30 14:24:03,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:03,304 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:24:03,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:24:03,305 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-30 14:24:03,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:03,305 INFO L85 PathProgramCache]: Analyzing trace with hash 384786, now seen corresponding path program 1 times [2024-01-30 14:24:03,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:03,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407495950] [2024-01-30 14:24:03,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:03,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:03,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:03,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:03,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407495950] [2024-01-30 14:24:03,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407495950] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:03,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:03,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:03,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486820449] [2024-01-30 14:24:03,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:03,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:24:03,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:03,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:24:03,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:24:03,439 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 83 [2024-01-30 14:24:03,440 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2024-01-30 14:24:03,440 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:03,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 83 [2024-01-30 14:24:03,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:03,542 INFO L124 PetriNetUnfolderBase]: 421/887 cut-off events. [2024-01-30 14:24:03,542 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-30 14:24:03,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1573 conditions, 887 events. 421/887 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5562 event pairs, 297 based on Foata normal form. 0/595 useless extension candidates. Maximal degree in co-relation 1564. Up to 669 conditions per place. [2024-01-30 14:24:03,548 INFO L140 encePairwiseOnDemand]: 80/83 looper letters, 41 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2024-01-30 14:24:03,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 74 transitions, 242 flow [2024-01-30 14:24:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:03,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 146 transitions. [2024-01-30 14:24:03,553 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5863453815261044 [2024-01-30 14:24:03,553 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 158 flow. Second operand 3 states and 146 transitions. [2024-01-30 14:24:03,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 74 transitions, 242 flow [2024-01-30 14:24:03,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 74 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:03,556 INFO L231 Difference]: Finished difference. Result has 75 places, 74 transitions, 156 flow [2024-01-30 14:24:03,556 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=75, PETRI_TRANSITIONS=74} [2024-01-30 14:24:03,557 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -8 predicate places. [2024-01-30 14:24:03,557 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 74 transitions, 156 flow [2024-01-30 14:24:03,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 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) [2024-01-30 14:24:03,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:03,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:24:03,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:24:03,558 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-30 14:24:03,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:03,559 INFO L85 PathProgramCache]: Analyzing trace with hash 11928768, now seen corresponding path program 1 times [2024-01-30 14:24:03,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:03,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67144604] [2024-01-30 14:24:03,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:03,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:03,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:03,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:03,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67144604] [2024-01-30 14:24:03,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67144604] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:03,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:03,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:03,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999455348] [2024-01-30 14:24:03,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:03,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:24:03,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:03,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:24:03,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:24:03,650 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 83 [2024-01-30 14:24:03,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 74 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-01-30 14:24:03,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:03,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 83 [2024-01-30 14:24:03,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:03,784 INFO L124 PetriNetUnfolderBase]: 421/886 cut-off events. [2024-01-30 14:24:03,784 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-30 14:24:03,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1571 conditions, 886 events. 421/886 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5552 event pairs, 297 based on Foata normal form. 0/595 useless extension candidates. Maximal degree in co-relation 1560. Up to 667 conditions per place. [2024-01-30 14:24:03,789 INFO L140 encePairwiseOnDemand]: 80/83 looper letters, 40 selfloop transitions, 2 changer transitions 0/73 dead transitions. [2024-01-30 14:24:03,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 73 transitions, 238 flow [2024-01-30 14:24:03,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:03,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:03,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2024-01-30 14:24:03,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5943775100401606 [2024-01-30 14:24:03,792 INFO L175 Difference]: Start difference. First operand has 75 places, 74 transitions, 156 flow. Second operand 3 states and 148 transitions. [2024-01-30 14:24:03,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 73 transitions, 238 flow [2024-01-30 14:24:03,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 73 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:03,794 INFO L231 Difference]: Finished difference. Result has 74 places, 73 transitions, 154 flow [2024-01-30 14:24:03,794 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=74, PETRI_TRANSITIONS=73} [2024-01-30 14:24:03,795 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -9 predicate places. [2024-01-30 14:24:03,795 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 73 transitions, 154 flow [2024-01-30 14:24:03,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-01-30 14:24:03,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:03,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:24:03,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:24:03,796 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-30 14:24:03,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:03,796 INFO L85 PathProgramCache]: Analyzing trace with hash 369792162, now seen corresponding path program 1 times [2024-01-30 14:24:03,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:03,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967992142] [2024-01-30 14:24:03,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:03,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:03,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:03,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:03,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967992142] [2024-01-30 14:24:03,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967992142] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:03,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:03,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:03,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130554291] [2024-01-30 14:24:03,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:03,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:24:03,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:03,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:24:03,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:24:03,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 83 [2024-01-30 14:24:03,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 73 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-01-30 14:24:03,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:03,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 83 [2024-01-30 14:24:03,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:04,024 INFO L124 PetriNetUnfolderBase]: 509/1160 cut-off events. [2024-01-30 14:24:04,024 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-30 14:24:04,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2003 conditions, 1160 events. 509/1160 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 7499 event pairs, 254 based on Foata normal form. 28/857 useless extension candidates. Maximal degree in co-relation 1990. Up to 678 conditions per place. [2024-01-30 14:24:04,029 INFO L140 encePairwiseOnDemand]: 74/83 looper letters, 51 selfloop transitions, 5 changer transitions 0/86 dead transitions. [2024-01-30 14:24:04,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 86 transitions, 293 flow [2024-01-30 14:24:04,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:04,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:04,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2024-01-30 14:24:04,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6626506024096386 [2024-01-30 14:24:04,031 INFO L175 Difference]: Start difference. First operand has 74 places, 73 transitions, 154 flow. Second operand 3 states and 165 transitions. [2024-01-30 14:24:04,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 86 transitions, 293 flow [2024-01-30 14:24:04,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 86 transitions, 289 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:04,033 INFO L231 Difference]: Finished difference. Result has 74 places, 74 transitions, 177 flow [2024-01-30 14:24:04,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=74, PETRI_TRANSITIONS=74} [2024-01-30 14:24:04,034 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -9 predicate places. [2024-01-30 14:24:04,034 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 74 transitions, 177 flow [2024-01-30 14:24:04,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-01-30 14:24:04,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:04,034 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-30 14:24:04,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:24:04,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-30 14:24:04,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:04,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1421344442, now seen corresponding path program 1 times [2024-01-30 14:24:04,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:04,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114763709] [2024-01-30 14:24:04,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:04,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:04,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:04,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:04,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114763709] [2024-01-30 14:24:04,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114763709] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:04,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:04,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:04,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879930739] [2024-01-30 14:24:04,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:04,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:24:04,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:04,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:24:04,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:24:04,091 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 83 [2024-01-30 14:24:04,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 74 transitions, 177 flow. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2024-01-30 14:24:04,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:04,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 83 [2024-01-30 14:24:04,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:04,182 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([410] L43-->L43-1: Formula: (and (= (mod v_~d1~0_2 256) 0) (= (mod (+ v_thread1Thread1of1ForFork0_~_argptr.offset_9 v_thread1Thread1of1ForFork0_~_argptr.base_9) 4294967296) 0) (= (mod v_~N~0_4 4294967296) 0) (= (mod v_~d2~0_2 256) 0)) InVars {~N~0=v_~N~0_4, thread1Thread1of1ForFork0_~_argptr.base=v_thread1Thread1of1ForFork0_~_argptr.base_9, thread1Thread1of1ForFork0_~_argptr.offset=v_thread1Thread1of1ForFork0_~_argptr.offset_9, ~d1~0=v_~d1~0_2, ~d2~0=v_~d2~0_2} OutVars{~N~0=v_~N~0_4, thread1Thread1of1ForFork0_~_argptr.base=v_thread1Thread1of1ForFork0_~_argptr.base_9, thread1Thread1of1ForFork0_~_argptr.offset=v_thread1Thread1of1ForFork0_~_argptr.offset_9, ~d1~0=v_~d1~0_2, ~d2~0=v_~d2~0_2} AuxVars[] AssignedVars[][22], [25#L43-1true, 49#L95-1true, 104#(and (= (* 256 (div ~d1~0 256)) ~d1~0) (= (* (div ~d2~0 256) 256) ~d2~0)), 100#(and (= ~N~0 (* (div ~N~0 4294967296) 4294967296)) (= (* 256 (div ~d1~0 256)) ~d1~0) (= (* (div ~d2~0 256) 256) ~d2~0)), 48#L62true]) [2024-01-30 14:24:04,182 INFO L294 olderBase$Statistics]: this new event has 28 ancestors and is cut-off event [2024-01-30 14:24:04,183 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2024-01-30 14:24:04,183 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2024-01-30 14:24:04,183 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2024-01-30 14:24:04,206 INFO L124 PetriNetUnfolderBase]: 475/1130 cut-off events. [2024-01-30 14:24:04,207 INFO L125 PetriNetUnfolderBase]: For 205/213 co-relation queries the response was YES. [2024-01-30 14:24:04,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2108 conditions, 1130 events. 475/1130 cut-off events. For 205/213 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7333 event pairs, 211 based on Foata normal form. 0/859 useless extension candidates. Maximal degree in co-relation 548. Up to 576 conditions per place. [2024-01-30 14:24:04,211 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 48 selfloop transitions, 5 changer transitions 0/85 dead transitions. [2024-01-30 14:24:04,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 85 transitions, 306 flow [2024-01-30 14:24:04,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:04,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-01-30 14:24:04,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6746987951807228 [2024-01-30 14:24:04,213 INFO L175 Difference]: Start difference. First operand has 74 places, 74 transitions, 177 flow. Second operand 3 states and 168 transitions. [2024-01-30 14:24:04,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 85 transitions, 306 flow [2024-01-30 14:24:04,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 85 transitions, 301 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:24:04,215 INFO L231 Difference]: Finished difference. Result has 74 places, 73 transitions, 180 flow [2024-01-30 14:24:04,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=180, PETRI_PLACES=74, PETRI_TRANSITIONS=73} [2024-01-30 14:24:04,216 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, -9 predicate places. [2024-01-30 14:24:04,216 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 73 transitions, 180 flow [2024-01-30 14:24:04,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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) [2024-01-30 14:24:04,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:04,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:24:04,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:24:04,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 56 more)] === [2024-01-30 14:24:04,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:04,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1112004358, now seen corresponding path program 1 times [2024-01-30 14:24:04,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:04,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473401299] [2024-01-30 14:24:04,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:04,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:24:04,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:24:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:24:04,240 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:24:04,240 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:24:04,241 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 59 remaining) [2024-01-30 14:24:04,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 59 remaining) [2024-01-30 14:24:04,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 59 remaining) [2024-01-30 14:24:04,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 59 remaining) [2024-01-30 14:24:04,242 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 59 remaining) [2024-01-30 14:24:04,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 59 remaining) [2024-01-30 14:24:04,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 59 remaining) [2024-01-30 14:24:04,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 59 remaining) [2024-01-30 14:24:04,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 59 remaining) [2024-01-30 14:24:04,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 59 remaining) [2024-01-30 14:24:04,243 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 59 remaining) [2024-01-30 14:24:04,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 59 remaining) [2024-01-30 14:24:04,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 59 remaining) [2024-01-30 14:24:04,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 59 remaining) [2024-01-30 14:24:04,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 59 remaining) [2024-01-30 14:24:04,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 59 remaining) [2024-01-30 14:24:04,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 59 remaining) [2024-01-30 14:24:04,244 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 59 remaining) [2024-01-30 14:24:04,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 59 remaining) [2024-01-30 14:24:04,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 59 remaining) [2024-01-30 14:24:04,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 59 remaining) [2024-01-30 14:24:04,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 59 remaining) [2024-01-30 14:24:04,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 59 remaining) [2024-01-30 14:24:04,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 59 remaining) [2024-01-30 14:24:04,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 59 remaining) [2024-01-30 14:24:04,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 59 remaining) [2024-01-30 14:24:04,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 59 remaining) [2024-01-30 14:24:04,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 59 remaining) [2024-01-30 14:24:04,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 59 remaining) [2024-01-30 14:24:04,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 59 remaining) [2024-01-30 14:24:04,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 59 remaining) [2024-01-30 14:24:04,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 59 remaining) [2024-01-30 14:24:04,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (26 of 59 remaining) [2024-01-30 14:24:04,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 59 remaining) [2024-01-30 14:24:04,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 59 remaining) [2024-01-30 14:24:04,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 59 remaining) [2024-01-30 14:24:04,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 59 remaining) [2024-01-30 14:24:04,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 59 remaining) [2024-01-30 14:24:04,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 59 remaining) [2024-01-30 14:24:04,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 59 remaining) [2024-01-30 14:24:04,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 59 remaining) [2024-01-30 14:24:04,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 59 remaining) [2024-01-30 14:24:04,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 59 remaining) [2024-01-30 14:24:04,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 59 remaining) [2024-01-30 14:24:04,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 59 remaining) [2024-01-30 14:24:04,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 59 remaining) [2024-01-30 14:24:04,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 59 remaining) [2024-01-30 14:24:04,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 59 remaining) [2024-01-30 14:24:04,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 59 remaining) [2024-01-30 14:24:04,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 59 remaining) [2024-01-30 14:24:04,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 59 remaining) [2024-01-30 14:24:04,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 59 remaining) [2024-01-30 14:24:04,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 59 remaining) [2024-01-30 14:24:04,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 59 remaining) [2024-01-30 14:24:04,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 59 remaining) [2024-01-30 14:24:04,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 59 remaining) [2024-01-30 14:24:04,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 59 remaining) [2024-01-30 14:24:04,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 59 remaining) [2024-01-30 14:24:04,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 59 remaining) [2024-01-30 14:24:04,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:24:04,251 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-01-30 14:24:04,256 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:24:04,256 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:24:04,268 INFO L503 ceAbstractionStarter]: Automizer considered 32 witness invariants [2024-01-30 14:24:04,268 INFO L504 ceAbstractionStarter]: WitnessConsidered=32 [2024-01-30 14:24:04,269 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:24:04 BasicIcfg [2024-01-30 14:24:04,269 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:24:04,269 INFO L158 Benchmark]: Toolchain (without parser) took 3339.10ms. Allocated memory was 136.3MB in the beginning and 234.9MB in the end (delta: 98.6MB). Free memory was 77.0MB in the beginning and 153.6MB in the end (delta: -76.7MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2024-01-30 14:24:04,270 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 136.3MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:24:04,270 INFO L158 Benchmark]: Witness Parser took 4.44ms. Allocated memory is still 136.3MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:24:04,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.18ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 77.0MB in the beginning and 138.3MB in the end (delta: -61.4MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2024-01-30 14:24:04,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.85ms. Allocated memory is still 167.8MB. Free memory was 138.3MB in the beginning and 137.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:24:04,271 INFO L158 Benchmark]: Boogie Preprocessor took 64.69ms. Allocated memory is still 167.8MB. Free memory was 137.1MB in the beginning and 134.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:24:04,271 INFO L158 Benchmark]: RCFGBuilder took 834.01ms. Allocated memory is still 167.8MB. Free memory was 134.2MB in the beginning and 95.1MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-01-30 14:24:04,271 INFO L158 Benchmark]: TraceAbstraction took 2035.15ms. Allocated memory was 167.8MB in the beginning and 234.9MB in the end (delta: 67.1MB). Free memory was 94.3MB in the beginning and 153.6MB in the end (delta: -59.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-01-30 14:24:04,272 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 136.3MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 4.44ms. Allocated memory is still 136.3MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.18ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 77.0MB in the beginning and 138.3MB in the end (delta: -61.4MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.85ms. Allocated memory is still 167.8MB. Free memory was 138.3MB in the beginning and 137.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.69ms. Allocated memory is still 167.8MB. Free memory was 137.1MB in the beginning and 134.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 834.01ms. Allocated memory is still 167.8MB. Free memory was 134.2MB in the beginning and 95.1MB in the end (delta: 39.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2035.15ms. Allocated memory was 167.8MB in the beginning and 234.9MB in the end (delta: 67.1MB). Free memory was 94.3MB in the beginning and 153.6MB in the end (delta: -59.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 88]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] unsigned int pos, i1, i2, N; [L39] _Bool d1, d2; [L80] pthread_t t1, t2; VAL [N=0, d1=0, d2=0, i1=0, i2=0, pos=0, t1={3:0}, t2={5:0}] [L83] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[pos],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[i1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[d1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[d2],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L83] pos = __VERIFIER_nondet_uint() [L84] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[i1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[d1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[d2],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L84] i1 = __VERIFIER_nondet_uint() [L85] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[i2],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[d1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[d2],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L85] i2 = __VERIFIER_nondet_uint() [L86] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[d1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]],BinaryExpression[COMPEQ,IdentifierExpression[d2],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L86] N = __VERIFIER_nondet_uint() [L87] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[d1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[d2],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L87] d1 = __VERIFIER_nondet_bool() [L88] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[d2],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[d1],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[d1],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]]] VAL [d1=2, d2=0, t1={3:0}, t2={5:0}] - 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: 57]: 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: 49]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 46]: 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: 53]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 54]: 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: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 83]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 99]: 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: 94]: 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: 93]: 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 5 procedures, 134 locations, 59 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: 1.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 213 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 96 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 441 IncrementalHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 57 mSDtfsCounter, 441 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180occurred in iteration=5, InterpolantAutomatonStates: 15, 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, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 250 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 RESULT: Ultimate proved your program to be incorrect! [2024-01-30 14:24:04,296 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