./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-mult-4.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/popl20-mult-4.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b 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/popl20-mult-4.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-mult-4.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-8857f20-m [2024-01-29 22:59:04,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:59:04,242 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:59:04,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:59:04,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:59:04,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:59:04,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:59:04,272 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:59:04,273 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:59:04,278 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:59:04,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:59:04,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:59:04,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:59:04,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:59:04,281 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:59:04,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:59:04,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:59:04,281 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:59:04,282 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:59:04,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:59:04,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:59:04,282 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:59:04,283 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:59:04,283 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:59:04,283 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:59:04,283 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:59:04,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:59:04,284 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:59:04,284 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:59:04,284 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:59:04,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:59:04,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:59:04,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:59:04,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:59:04,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:59:04,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:59:04,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:59:04,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:59:04,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:59:04,287 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:59:04,287 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:59:04,287 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:59:04,287 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:59:04,288 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:59:04,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:59:04,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:59:04,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:59:04,526 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:59:04,527 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:59:04,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2024-01-29 22:59:05,677 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:59:05,815 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:59:05,816 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2024-01-29 22:59:05,822 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/354efd9f5/19be0874cfe9426cae54b4143173a1eb/FLAG7da9263d3 [2024-01-29 22:59:05,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/354efd9f5/19be0874cfe9426cae54b4143173a1eb [2024-01-29 22:59:05,835 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:59:05,835 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:59:05,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-mult-4.wvr.yml/witness.yml [2024-01-29 22:59:05,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:59:05,908 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:59:05,909 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:59:05,909 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:59:05,913 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:59:05,914 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:59:05" (1/2) ... [2024-01-29 22:59:05,914 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552035d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:05, skipping insertion in model container [2024-01-29 22:59:05,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:59:05" (1/2) ... [2024-01-29 22:59:05,916 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13c7aad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:05, skipping insertion in model container [2024-01-29 22:59:05,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:05" (2/2) ... [2024-01-29 22:59:05,916 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@552035d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:05, skipping insertion in model container [2024-01-29 22:59:05,916 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:05" (2/2) ... [2024-01-29 22:59:05,916 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:59:05,932 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:59:05,933 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,933 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] ((unsigned long )_argptr == 0UL) && ((((((((((i == 8U || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) || i == 9U) [2024-01-29 22:59:05,934 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] ((unsigned long )_argptr == 0UL) && ((((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) [2024-01-29 22:59:05,934 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,934 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (0LL - (long long )c) + (long long )counter >= 0LL [2024-01-29 22:59:05,934 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((0LL - (long long )c) + (long long )counter >= 0LL) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-01-29 22:59:05,934 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((0LL - (long long )c) + (long long )counter >= 0LL) && (counter == 0U) [2024-01-29 22:59:05,934 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((0LL - (long long )c) + (long long )counter >= 0LL) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:05,934 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c - (long long )counter >= 0LL) [2024-01-29 22:59:05,935 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((0LL - (long long )c) + (long long )counter >= 0LL) && (c == 0U) [2024-01-29 22:59:05,935 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((0LL - (long long )c) + (long long )counter >= 0LL) && ((0LL - (long long )c) - (long long )counter >= 0LL) [2024-01-29 22:59:05,935 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL) [2024-01-29 22:59:05,935 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] ((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL) [2024-01-29 22:59:05,935 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && ((long long )c - (long long )counter >= 0LL) [2024-01-29 22:59:05,935 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (0LL - (long long )c) + (long long )counter >= 0LL [2024-01-29 22:59:05,935 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && (c == 0U) [2024-01-29 22:59:05,935 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && ((0LL - (long long )c) - (long long )counter >= 0LL) [2024-01-29 22:59:05,936 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && (counter == 0U) [2024-01-29 22:59:05,936 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && (N == 0U) [2024-01-29 22:59:05,936 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && ((long long )c - (long long )counter >= 0LL) [2024-01-29 22:59:05,936 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] ((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL) [2024-01-29 22:59:05,936 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] ((((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && ((long long )c - (long long )counter >= 0LL)) && (counter == 0U) [2024-01-29 22:59:05,936 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (0LL - (long long )c) + (long long )counter >= 0LL [2024-01-29 22:59:05,936 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && ((0LL - (long long )c) - (long long )counter >= 0LL) [2024-01-29 22:59:05,937 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] ((((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && ((long long )c - (long long )counter >= 0LL)) && (c == 0U) [2024-01-29 22:59:05,937 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,937 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] ((unsigned long )_argptr == 0UL) && ((((((((((i == 8U || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) || i == 9U) [2024-01-29 22:59:05,937 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,937 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] ((unsigned long )_argptr == 0UL) && ((((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) [2024-01-29 22:59:05,937 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,937 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,938 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,938 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] ((unsigned long )_argptr == 0UL) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-01-29 22:59:05,938 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,938 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] ((unsigned long )_argptr == 0UL) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-01-29 22:59:05,938 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,938 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] ((unsigned long )_argptr == 0UL) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-01-29 22:59:05,938 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,939 INFO L98 nessWitnessExtractor]: Loop invariant at [L72-L77] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,939 INFO L98 nessWitnessExtractor]: Loop invariant at [L72-L77] ((unsigned long )_argptr == 0UL) && ((((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || 10U <= i) [2024-01-29 22:59:05,939 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,939 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] ((unsigned long )_argptr == 0UL) && ((((((((((i == 8U || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) || i == 9U) [2024-01-29 22:59:05,939 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,939 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] ((unsigned long )_argptr == 0UL) && ((((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) [2024-01-29 22:59:05,939 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] counter == 0U [2024-01-29 22:59:05,939 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] ((unsigned long )_argptr == 0UL) && ((((((((((i == 8U || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) || i == 9U) [2024-01-29 22:59:05,940 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,940 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L45] ((unsigned long )_argptr == 0UL) && ((((((((((((12U <= i || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-01-29 22:59:05,940 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L45] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,940 INFO L98 nessWitnessExtractor]: Loop invariant at [L51-L56] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,940 INFO L98 nessWitnessExtractor]: Loop invariant at [L51-L56] ((unsigned long )_argptr == 0UL) && ((((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || 10U <= i) [2024-01-29 22:59:05,940 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,940 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] ((unsigned long )_argptr == 0UL) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-01-29 22:59:05,941 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,941 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] ((unsigned long )_argptr == 0UL) && ((((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) [2024-01-29 22:59:05,941 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,941 INFO L98 nessWitnessExtractor]: Loop invariant at [L62-L66] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,941 INFO L98 nessWitnessExtractor]: Loop invariant at [L62-L66] ((unsigned long )_argptr == 0UL) && ((((((((((((12U <= i || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-01-29 22:59:05,941 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] counter == 0U [2024-01-29 22:59:05,941 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] ((unsigned long )_argptr == 0UL) && (((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) [2024-01-29 22:59:05,942 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-29 22:59:05,959 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:59:06,103 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/popl20-mult-4.wvr.c[2664,2677] [2024-01-29 22:59:06,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:59:06,116 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:59:06,251 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/popl20-mult-4.wvr.c[2664,2677] [2024-01-29 22:59:06,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:59:06,267 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:59:06,280 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06 WrapperNode [2024-01-29 22:59:06,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:59:06,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:59:06,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:59:06,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:59:06,299 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 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,314 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 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,344 INFO L138 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 163 [2024-01-29 22:59:06,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:59:06,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:59:06,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:59:06,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:59:06,355 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,394 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-01-29 22:59:06,395 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,404 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,422 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,429 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:59:06,430 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:59:06,437 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:59:06,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:59:06,438 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06" (1/1) ... [2024-01-29 22:59:06,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:59:06,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:59:06,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:59:06,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:59:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:59:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:59:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:59:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:59:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:59:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 22:59:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 22:59:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-29 22:59:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-29 22:59:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:59:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:59:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:59:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:59:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 22:59:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:59:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:59:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:59:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:59:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:59:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 22:59:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 22:59:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 22:59:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:59:06,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:59:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:59:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:59:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:59:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 22:59:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 22:59:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:59:06,504 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:59:06,627 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:59:06,631 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:59:07,198 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:59:07,199 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:59:07,442 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:59:07,443 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-29 22:59:07,443 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:07 BoogieIcfgContainer [2024-01-29 22:59:07,443 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:59:07,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:59:07,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:59:07,449 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:59:07,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:59:05" (1/4) ... [2024-01-29 22:59:07,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f34530e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:59:07, skipping insertion in model container [2024-01-29 22:59:07,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:05" (2/4) ... [2024-01-29 22:59:07,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f34530e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:59:07, skipping insertion in model container [2024-01-29 22:59:07,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:06" (3/4) ... [2024-01-29 22:59:07,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f34530e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:59:07, skipping insertion in model container [2024-01-29 22:59:07,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:07" (4/4) ... [2024-01-29 22:59:07,453 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2024-01-29 22:59:07,468 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:59:07,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2024-01-29 22:59:07,469 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:59:07,606 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-29 22:59:07,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 155 transitions, 338 flow [2024-01-29 22:59:07,699 INFO L124 PetriNetUnfolderBase]: 4/151 cut-off events. [2024-01-29 22:59:07,700 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 22:59:07,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 151 events. 4/151 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 554 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2024-01-29 22:59:07,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 155 transitions, 338 flow [2024-01-29 22:59:07,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 150 transitions, 324 flow [2024-01-29 22:59:07,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:59:07,731 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;@250b85a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:59:07,732 INFO L358 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2024-01-29 22:59:07,733 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:59:07,733 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:59:07,733 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:59:07,734 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:07,734 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:59:07,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 125 more)] === [2024-01-29 22:59:07,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:07,738 INFO L85 PathProgramCache]: Analyzing trace with hash 21111, now seen corresponding path program 1 times [2024-01-29 22:59:07,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:07,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456652207] [2024-01-29 22:59:07,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:07,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:08,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:08,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456652207] [2024-01-29 22:59:08,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456652207] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:08,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:08,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:59:08,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379509801] [2024-01-29 22:59:08,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:08,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:08,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:08,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:08,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:08,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 155 [2024-01-29 22:59:08,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 150 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:08,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:08,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 155 [2024-01-29 22:59:08,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:17,016 INFO L124 PetriNetUnfolderBase]: 65500/113569 cut-off events. [2024-01-29 22:59:17,016 INFO L125 PetriNetUnfolderBase]: For 2413/2413 co-relation queries the response was YES. [2024-01-29 22:59:17,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198082 conditions, 113569 events. 65500/113569 cut-off events. For 2413/2413 co-relation queries the response was YES. Maximal size of possible extension queue 5677. Compared 1203543 event pairs, 51961 based on Foata normal form. 6/66328 useless extension candidates. Maximal degree in co-relation 184327. Up to 81984 conditions per place. [2024-01-29 22:59:17,852 INFO L140 encePairwiseOnDemand]: 129/155 looper letters, 60 selfloop transitions, 2 changer transitions 0/126 dead transitions. [2024-01-29 22:59:17,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 126 transitions, 400 flow [2024-01-29 22:59:17,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:17,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:17,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2024-01-29 22:59:17,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6236559139784946 [2024-01-29 22:59:17,864 INFO L175 Difference]: Start difference. First operand has 159 places, 150 transitions, 324 flow. Second operand 3 states and 290 transitions. [2024-01-29 22:59:17,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 126 transitions, 400 flow [2024-01-29 22:59:17,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 126 transitions, 384 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-29 22:59:17,994 INFO L231 Difference]: Finished difference. Result has 129 places, 126 transitions, 264 flow [2024-01-29 22:59:17,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=129, PETRI_TRANSITIONS=126} [2024-01-29 22:59:17,998 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -30 predicate places. [2024-01-29 22:59:17,999 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 126 transitions, 264 flow [2024-01-29 22:59:17,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:17,999 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:17,999 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:17,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:59:18,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 125 more)] === [2024-01-29 22:59:18,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:18,000 INFO L85 PathProgramCache]: Analyzing trace with hash 310759317, now seen corresponding path program 1 times [2024-01-29 22:59:18,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:18,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188681142] [2024-01-29 22:59:18,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:18,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:18,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:18,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188681142] [2024-01-29 22:59:18,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188681142] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:18,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:18,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:59:18,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019358282] [2024-01-29 22:59:18,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:18,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:59:18,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:18,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:59:18,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:59:18,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 155 [2024-01-29 22:59:18,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 126 transitions, 264 flow. Second operand has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:18,166 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:18,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 155 [2024-01-29 22:59:18,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:26,029 INFO L124 PetriNetUnfolderBase]: 60671/106517 cut-off events. [2024-01-29 22:59:26,030 INFO L125 PetriNetUnfolderBase]: For 420/420 co-relation queries the response was YES. [2024-01-29 22:59:26,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183005 conditions, 106517 events. 60671/106517 cut-off events. For 420/420 co-relation queries the response was YES. Maximal size of possible extension queue 6314. Compared 1145820 event pairs, 19209 based on Foata normal form. 1/71619 useless extension candidates. Maximal degree in co-relation 182984. Up to 36016 conditions per place. [2024-01-29 22:59:26,882 INFO L140 encePairwiseOnDemand]: 138/155 looper letters, 117 selfloop transitions, 9 changer transitions 1/184 dead transitions. [2024-01-29 22:59:26,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 184 transitions, 644 flow [2024-01-29 22:59:26,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:26,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:26,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 386 transitions. [2024-01-29 22:59:26,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6225806451612903 [2024-01-29 22:59:26,885 INFO L175 Difference]: Start difference. First operand has 129 places, 126 transitions, 264 flow. Second operand 4 states and 386 transitions. [2024-01-29 22:59:26,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 184 transitions, 644 flow [2024-01-29 22:59:26,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 184 transitions, 640 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:26,888 INFO L231 Difference]: Finished difference. Result has 127 places, 126 transitions, 316 flow [2024-01-29 22:59:26,888 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=316, PETRI_PLACES=127, PETRI_TRANSITIONS=126} [2024-01-29 22:59:26,889 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -32 predicate places. [2024-01-29 22:59:26,889 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 126 transitions, 316 flow [2024-01-29 22:59:26,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:26,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:26,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:26,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:59:26,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 125 more)] === [2024-01-29 22:59:26,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:26,891 INFO L85 PathProgramCache]: Analyzing trace with hash 520592625, now seen corresponding path program 1 times [2024-01-29 22:59:26,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:26,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795858220] [2024-01-29 22:59:26,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:26,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:26,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:26,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:26,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795858220] [2024-01-29 22:59:26,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795858220] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:26,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:26,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:26,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414138708] [2024-01-29 22:59:26,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:26,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:26,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:26,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:26,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:26,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 155 [2024-01-29 22:59:26,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 126 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:26,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:26,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 155 [2024-01-29 22:59:26,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:37,863 INFO L124 PetriNetUnfolderBase]: 74953/144111 cut-off events. [2024-01-29 22:59:37,863 INFO L125 PetriNetUnfolderBase]: For 24802/24802 co-relation queries the response was YES. [2024-01-29 22:59:38,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265330 conditions, 144111 events. 74953/144111 cut-off events. For 24802/24802 co-relation queries the response was YES. Maximal size of possible extension queue 6113. Compared 1677275 event pairs, 25445 based on Foata normal form. 1132/107987 useless extension candidates. Maximal degree in co-relation 88099. Up to 52082 conditions per place. [2024-01-29 22:59:39,319 INFO L140 encePairwiseOnDemand]: 144/155 looper letters, 90 selfloop transitions, 8 changer transitions 1/162 dead transitions. [2024-01-29 22:59:39,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 162 transitions, 613 flow [2024-01-29 22:59:39,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:39,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:39,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 336 transitions. [2024-01-29 22:59:39,322 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7225806451612903 [2024-01-29 22:59:39,346 INFO L175 Difference]: Start difference. First operand has 127 places, 126 transitions, 316 flow. Second operand 3 states and 336 transitions. [2024-01-29 22:59:39,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 162 transitions, 613 flow [2024-01-29 22:59:39,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 162 transitions, 605 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:59:39,379 INFO L231 Difference]: Finished difference. Result has 128 places, 131 transitions, 392 flow [2024-01-29 22:59:39,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=128, PETRI_TRANSITIONS=131} [2024-01-29 22:59:39,380 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -31 predicate places. [2024-01-29 22:59:39,380 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 131 transitions, 392 flow [2024-01-29 22:59:39,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:39,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:39,381 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:39,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:59:39,381 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 125 more)] === [2024-01-29 22:59:39,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:39,382 INFO L85 PathProgramCache]: Analyzing trace with hash -397346414, now seen corresponding path program 1 times [2024-01-29 22:59:39,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:39,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590166451] [2024-01-29 22:59:39,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:39,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:39,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:39,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:39,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590166451] [2024-01-29 22:59:39,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590166451] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:39,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:39,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:59:39,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331629259] [2024-01-29 22:59:39,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:39,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:39,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:39,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:39,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:39,703 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 155 [2024-01-29 22:59:39,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 131 transitions, 392 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:39,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:39,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 155 [2024-01-29 22:59:39,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand