./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 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/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-3d25acf-m [2024-01-30 14:25:26,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:25:26,409 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:25:26,413 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:25:26,414 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:25:26,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:25:26,437 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:25:26,438 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:25:26,438 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:25:26,441 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:25:26,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:25:26,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:25:26,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:25:26,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:25:26,444 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:25:26,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:25:26,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:25:26,445 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:25:26,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:25:26,445 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:25:26,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:25:26,446 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:25:26,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:25:26,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:25:26,447 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:25:26,447 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:25:26,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:25:26,448 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:25:26,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:25:26,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:25:26,449 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:25:26,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:25:26,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:25:26,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:25:26,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:25:26,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:25:26,451 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:25:26,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:25:26,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:25:26,451 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:25:26,451 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:25:26,452 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:25:26,452 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:25:26,452 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:25:26,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:25:26,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:25:26,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:25:26,697 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:25:26,700 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:25:26,701 INFO L431 ainManager$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 [2024-01-30 14:25:26,857 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:25:26,857 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:25:26,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2024-01-30 14:25:27,924 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:25:28,081 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:25:28,082 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2024-01-30 14:25:28,088 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d4b5a525/3260ed9e799a4bfe8244858dce56a313/FLAG47dea8c90 [2024-01-30 14:25:28,104 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d4b5a525/3260ed9e799a4bfe8244858dce56a313 [2024-01-30 14:25:28,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:25:28,106 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:25:28,108 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:25:28,108 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:25:28,112 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:25:28,112 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:26" (1/2) ... [2024-01-30 14:25:28,113 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc55f8a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28, skipping insertion in model container [2024-01-30 14:25:28,113 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:26" (1/2) ... [2024-01-30 14:25:28,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5074fe5f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:25:28, skipping insertion in model container [2024-01-30 14:25:28,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:25:28" (2/2) ... [2024-01-30 14:25:28,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fc55f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28, skipping insertion in model container [2024-01-30 14:25:28,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:25:28" (2/2) ... [2024-01-30 14:25:28,115 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:25:28,144 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:25:28,145 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) [2024-01-30 14:25:28,145 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] counter == 0U [2024-01-30 14:25:28,145 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)) [2024-01-30 14:25:28,145 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,145 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) [2024-01-30 14:25:28,146 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)) [2024-01-30 14:25:28,146 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)) [2024-01-30 14:25:28,146 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)) [2024-01-30 14:25:28,146 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)) [2024-01-30 14:25:28,147 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) [2024-01-30 14:25:28,147 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) [2024-01-30 14:25:28,147 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) [2024-01-30 14:25:28,147 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)) [2024-01-30 14:25:28,147 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)) [2024-01-30 14:25:28,147 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,147 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] counter == 0U [2024-01-30 14:25:28,147 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,148 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-30 14:25:28,148 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((((((((0LL - (long long )c) + (long long )counter >= 0LL) && ((long long )c + (long long )counter >= 0LL)) && ((0LL - (long long )c) - (long long )counter >= 0LL)) && ((long long )c - (long long )counter >= 0LL)) && (counter == 0U)) && (c == 0U)) && ((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)) [2024-01-30 14:25:28,148 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)) [2024-01-30 14:25:28,148 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)) [2024-01-30 14:25:28,149 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)) && ((long long )c - (long long )counter >= 0LL)) && (N == 0U)) && (counter == 0U)) && (c == 0U) [2024-01-30 14:25:28,149 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)) && ((long long )c - (long long )counter >= 0LL)) && (counter == 0U)) && (c == 0U) [2024-01-30 14:25:28,149 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)) [2024-01-30 14:25:28,149 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) [2024-01-30 14:25:28,149 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)) [2024-01-30 14:25:28,167 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:25:28,368 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] [2024-01-30 14:25:28,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:25:28,382 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 [2024-01-30 14:25:28,503 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] [2024-01-30 14:25:28,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:25:28,516 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:25:28,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28 WrapperNode [2024-01-30 14:25:28,517 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:25:28,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:25:28,519 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:25:28,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:25:28,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,577 INFO L138 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 140 [2024-01-30 14:25:28,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:25:28,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:25:28,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:25:28,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:25:28,586 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,596 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,619 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]. [2024-01-30 14:25:28,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,634 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,644 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:25:28,652 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:25:28,653 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:25:28,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:25:28,654 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (1/1) ... [2024-01-30 14:25:28,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:25:28,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:25:28,677 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 14:25:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:25:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:25:28,710 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:25:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:25:28,710 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:25:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-30 14:25:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-30 14:25:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-30 14:25:28,711 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-30 14:25:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:25:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:25:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:25:28,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:25:28,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-30 14:25:28,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:25:28,700 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 14:25:28,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:25:28,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:25:28,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-30 14:25:28,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:25:28,715 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 14:25:28,829 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:25:28,831 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:25:29,218 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:25:29,219 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:25:29,406 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:25:29,407 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-30 14:25:29,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:25:29 BoogieIcfgContainer [2024-01-30 14:25:29,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:25:29,410 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:25:29,411 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:25:29,413 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:25:29,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:25:26" (1/4) ... [2024-01-30 14:25:29,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0a266a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:25:29, skipping insertion in model container [2024-01-30 14:25:29,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:25:28" (2/4) ... [2024-01-30 14:25:29,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0a266a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:25:29, skipping insertion in model container [2024-01-30 14:25:29,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:25:28" (3/4) ... [2024-01-30 14:25:29,415 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0a266a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:25:29, skipping insertion in model container [2024-01-30 14:25:29,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:25:29" (4/4) ... [2024-01-30 14:25:29,416 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2024-01-30 14:25:29,428 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:25:29,429 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2024-01-30 14:25:29,429 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:25:29,551 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-30 14:25:29,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 93 transitions, 214 flow [2024-01-30 14:25:29,614 INFO L124 PetriNetUnfolderBase]: 4/89 cut-off events. [2024-01-30 14:25:29,614 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-30 14:25:29,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 89 events. 4/89 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 294 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2024-01-30 14:25:29,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 93 transitions, 214 flow [2024-01-30 14:25:29,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 88 transitions, 200 flow [2024-01-30 14:25:29,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:25:29,641 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;@47a3e14f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:25:29,641 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-01-30 14:25:29,644 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:25:29,644 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:25:29,645 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:25:29,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:29,645 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:25:29,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-30 14:25:29,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:29,652 INFO L85 PathProgramCache]: Analyzing trace with hash 15466, now seen corresponding path program 1 times [2024-01-30 14:25:29,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:29,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933089151] [2024-01-30 14:25:29,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:29,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:30,060 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 14:25:30,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:30,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933089151] [2024-01-30 14:25:30,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933089151] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:30,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:30,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:25:30,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722836345] [2024-01-30 14:25:30,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:30,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:30,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:30,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:30,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:30,111 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 93 [2024-01-30 14:25:30,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 88 transitions, 200 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 14:25:30,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:30,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 93 [2024-01-30 14:25:30,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:34,777 INFO L124 PetriNetUnfolderBase]: 39901/57860 cut-off events. [2024-01-30 14:25:34,777 INFO L125 PetriNetUnfolderBase]: For 1430/1430 co-relation queries the response was YES. [2024-01-30 14:25:34,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109668 conditions, 57860 events. 39901/57860 cut-off events. For 1430/1430 co-relation queries the response was YES. Maximal size of possible extension queue 2578. Compared 428217 event pairs, 30429 based on Foata normal form. 0/38466 useless extension candidates. Maximal degree in co-relation 99064. Up to 50047 conditions per place. [2024-01-30 14:25:35,190 INFO L140 encePairwiseOnDemand]: 84/93 looper letters, 50 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2024-01-30 14:25:35,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 81 transitions, 290 flow [2024-01-30 14:25:35,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:35,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:35,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2024-01-30 14:25:35,199 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5663082437275986 [2024-01-30 14:25:35,201 INFO L175 Difference]: Start difference. First operand has 97 places, 88 transitions, 200 flow. Second operand 3 states and 158 transitions. [2024-01-30 14:25:35,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 81 transitions, 290 flow [2024-01-30 14:25:35,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 81 transitions, 274 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-30 14:25:35,253 INFO L231 Difference]: Finished difference. Result has 84 places, 81 transitions, 174 flow [2024-01-30 14:25:35,254 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=84, PETRI_TRANSITIONS=81} [2024-01-30 14:25:35,257 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, -13 predicate places. [2024-01-30 14:25:35,257 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 81 transitions, 174 flow [2024-01-30 14:25:35,257 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 14:25:35,257 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:35,257 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:25:35,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:25:35,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-30 14:25:35,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:35,258 INFO L85 PathProgramCache]: Analyzing trace with hash 479885, now seen corresponding path program 1 times [2024-01-30 14:25:35,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:35,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737487426] [2024-01-30 14:25:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:35,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:35,300 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 14:25:35,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:35,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737487426] [2024-01-30 14:25:35,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737487426] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:35,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:35,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:25:35,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925071033] [2024-01-30 14:25:35,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:35,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:35,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:35,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:35,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:35,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 93 [2024-01-30 14:25:35,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 81 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 14:25:35,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:35,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 93 [2024-01-30 14:25:35,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:39,580 INFO L124 PetriNetUnfolderBase]: 36258/57688 cut-off events. [2024-01-30 14:25:39,580 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2024-01-30 14:25:39,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103945 conditions, 57688 events. 36258/57688 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 3123. Compared 510164 event pairs, 13150 based on Foata normal form. 1/45155 useless extension candidates. Maximal degree in co-relation 103936. Up to 23239 conditions per place. [2024-01-30 14:25:39,916 INFO L140 encePairwiseOnDemand]: 86/93 looper letters, 77 selfloop transitions, 3 changer transitions 1/114 dead transitions. [2024-01-30 14:25:39,916 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 114 transitions, 409 flow [2024-01-30 14:25:39,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:39,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:39,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2024-01-30 14:25:39,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7132616487455197 [2024-01-30 14:25:39,922 INFO L175 Difference]: Start difference. First operand has 84 places, 81 transitions, 174 flow. Second operand 3 states and 199 transitions. [2024-01-30 14:25:39,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 114 transitions, 409 flow [2024-01-30 14:25:39,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 114 transitions, 405 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:39,925 INFO L231 Difference]: Finished difference. Result has 85 places, 81 transitions, 190 flow [2024-01-30 14:25:39,925 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=85, PETRI_TRANSITIONS=81} [2024-01-30 14:25:39,926 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, -12 predicate places. [2024-01-30 14:25:39,926 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 81 transitions, 190 flow [2024-01-30 14:25:39,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 14:25:39,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:39,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:25:39,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:25:39,927 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-30 14:25:39,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:39,927 INFO L85 PathProgramCache]: Analyzing trace with hash 14876915, now seen corresponding path program 1 times [2024-01-30 14:25:39,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:39,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621070698] [2024-01-30 14:25:39,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:39,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:39,951 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 14:25:39,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:39,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621070698] [2024-01-30 14:25:39,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621070698] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:39,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:39,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:25:39,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835836530] [2024-01-30 14:25:39,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:39,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:25:39,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:39,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:25:39,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:25:39,959 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 93 [2024-01-30 14:25:39,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 81 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 14:25:39,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:39,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 93 [2024-01-30 14:25:39,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:44,763 INFO L124 PetriNetUnfolderBase]: 43921/73854 cut-off events. [2024-01-30 14:25:44,763 INFO L125 PetriNetUnfolderBase]: For 6862/6862 co-relation queries the response was YES. [2024-01-30 14:25:44,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136127 conditions, 73854 events. 43921/73854 cut-off events. For 6862/6862 co-relation queries the response was YES. Maximal size of possible extension queue 2993. Compared 688722 event pairs, 16055 based on Foata normal form. 453/63464 useless extension candidates. Maximal degree in co-relation 55285. Up to 31326 conditions per place. [2024-01-30 14:25:45,408 INFO L140 encePairwiseOnDemand]: 85/93 looper letters, 73 selfloop transitions, 4 changer transitions 1/111 dead transitions. [2024-01-30 14:25:45,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 111 transitions, 417 flow [2024-01-30 14:25:45,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:25:45,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:25:45,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2024-01-30 14:25:45,410 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7096774193548387 [2024-01-30 14:25:45,410 INFO L175 Difference]: Start difference. First operand has 85 places, 81 transitions, 190 flow. Second operand 3 states and 198 transitions. [2024-01-30 14:25:45,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 111 transitions, 417 flow [2024-01-30 14:25:45,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 111 transitions, 409 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:45,477 INFO L231 Difference]: Finished difference. Result has 85 places, 82 transitions, 218 flow [2024-01-30 14:25:45,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=85, PETRI_TRANSITIONS=82} [2024-01-30 14:25:45,478 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, -12 predicate places. [2024-01-30 14:25:45,478 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 82 transitions, 218 flow [2024-01-30 14:25:45,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 14:25:45,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:45,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:25:45,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:25:45,479 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-30 14:25:45,480 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:45,480 INFO L85 PathProgramCache]: Analyzing trace with hash -442257399, now seen corresponding path program 1 times [2024-01-30 14:25:45,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:45,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452675825] [2024-01-30 14:25:45,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:45,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:45,713 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 14:25:45,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:45,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452675825] [2024-01-30 14:25:45,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452675825] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:45,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:45,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:25:45,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931374123] [2024-01-30 14:25:45,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:45,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:25:45,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:45,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:25:45,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:25:45,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 93 [2024-01-30 14:25:45,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 82 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 14:25:45,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:45,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 93 [2024-01-30 14:25:45,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:50,618 INFO L124 PetriNetUnfolderBase]: 43801/67426 cut-off events. [2024-01-30 14:25:50,619 INFO L125 PetriNetUnfolderBase]: For 19770/19770 co-relation queries the response was YES. [2024-01-30 14:25:50,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137830 conditions, 67426 events. 43801/67426 cut-off events. For 19770/19770 co-relation queries the response was YES. Maximal size of possible extension queue 2794. Compared 566906 event pairs, 4527 based on Foata normal form. 2124/65422 useless extension candidates. Maximal degree in co-relation 31958. Up to 53427 conditions per place. [2024-01-30 14:25:50,991 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 73 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2024-01-30 14:25:50,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 105 transitions, 431 flow [2024-01-30 14:25:50,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:25:50,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:25:50,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2024-01-30 14:25:50,993 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6048387096774194 [2024-01-30 14:25:50,993 INFO L175 Difference]: Start difference. First operand has 85 places, 82 transitions, 218 flow. Second operand 4 states and 225 transitions. [2024-01-30 14:25:50,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 105 transitions, 431 flow [2024-01-30 14:25:51,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 105 transitions, 421 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:51,034 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 208 flow [2024-01-30 14:25:51,035 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2024-01-30 14:25:51,035 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, -14 predicate places. [2024-01-30 14:25:51,035 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 208 flow [2024-01-30 14:25:51,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 14:25:51,036 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:51,036 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:25:51,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:25:51,036 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-30 14:25:51,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:51,037 INFO L85 PathProgramCache]: Analyzing trace with hash 189919650, now seen corresponding path program 1 times [2024-01-30 14:25:51,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:51,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873831744] [2024-01-30 14:25:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:51,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:51,197 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 14:25:51,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:51,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873831744] [2024-01-30 14:25:51,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873831744] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:51,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:51,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:25:51,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119994684] [2024-01-30 14:25:51,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:51,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:25:51,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:51,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:25:51,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:25:51,214 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 93 [2024-01-30 14:25:51,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 208 flow. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 14:25:51,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:51,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 93 [2024-01-30 14:25:51,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:25:56,263 INFO L124 PetriNetUnfolderBase]: 43804/72744 cut-off events. [2024-01-30 14:25:56,263 INFO L125 PetriNetUnfolderBase]: For 15483/15483 co-relation queries the response was YES. [2024-01-30 14:25:56,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141476 conditions, 72744 events. 43804/72744 cut-off events. For 15483/15483 co-relation queries the response was YES. Maximal size of possible extension queue 2894. Compared 663335 event pairs, 15897 based on Foata normal form. 3330/69251 useless extension candidates. Maximal degree in co-relation 130555. Up to 49889 conditions per place. [2024-01-30 14:25:56,830 INFO L140 encePairwiseOnDemand]: 88/93 looper letters, 83 selfloop transitions, 2 changer transitions 0/112 dead transitions. [2024-01-30 14:25:56,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 112 transitions, 483 flow [2024-01-30 14:25:56,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:25:56,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:25:56,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 231 transitions. [2024-01-30 14:25:56,832 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6209677419354839 [2024-01-30 14:25:56,832 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 208 flow. Second operand 4 states and 231 transitions. [2024-01-30 14:25:56,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 112 transitions, 483 flow [2024-01-30 14:25:56,835 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 112 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:25:56,838 INFO L231 Difference]: Finished difference. Result has 81 places, 76 transitions, 203 flow [2024-01-30 14:25:56,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=81, PETRI_TRANSITIONS=76} [2024-01-30 14:25:56,840 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, -16 predicate places. [2024-01-30 14:25:56,840 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 76 transitions, 203 flow [2024-01-30 14:25:56,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 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 14:25:56,840 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:25:56,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:25:56,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:25:56,841 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-30 14:25:56,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:25:56,841 INFO L85 PathProgramCache]: Analyzing trace with hash 192418828, now seen corresponding path program 1 times [2024-01-30 14:25:56,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:25:56,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253521262] [2024-01-30 14:25:56,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:25:56,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:25:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:25:57,025 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 14:25:57,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:25:57,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253521262] [2024-01-30 14:25:57,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253521262] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:25:57,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:25:57,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:25:57,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113525268] [2024-01-30 14:25:57,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:25:57,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:25:57,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:25:57,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:25:57,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:25:57,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 93 [2024-01-30 14:25:57,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 76 transitions, 203 flow. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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 14:25:57,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:25:57,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 93 [2024-01-30 14:25:57,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:26:02,567 INFO L124 PetriNetUnfolderBase]: 66279/91392 cut-off events. [2024-01-30 14:26:02,568 INFO L125 PetriNetUnfolderBase]: For 17113/17113 co-relation queries the response was YES. [2024-01-30 14:26:02,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195514 conditions, 91392 events. 66279/91392 cut-off events. For 17113/17113 co-relation queries the response was YES. Maximal size of possible extension queue 3521. Compared 661834 event pairs, 6565 based on Foata normal form. 0/84619 useless extension candidates. Maximal degree in co-relation 184395. Up to 42940 conditions per place. [2024-01-30 14:26:03,287 INFO L140 encePairwiseOnDemand]: 89/93 looper letters, 102 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2024-01-30 14:26:03,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 127 transitions, 553 flow [2024-01-30 14:26:03,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:26:03,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:26:03,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 232 transitions. [2024-01-30 14:26:03,289 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6236559139784946 [2024-01-30 14:26:03,289 INFO L175 Difference]: Start difference. First operand has 81 places, 76 transitions, 203 flow. Second operand 4 states and 232 transitions. [2024-01-30 14:26:03,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 127 transitions, 553 flow [2024-01-30 14:26:03,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 127 transitions, 544 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:26:03,293 INFO L231 Difference]: Finished difference. Result has 81 places, 75 transitions, 204 flow [2024-01-30 14:26:03,293 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=81, PETRI_TRANSITIONS=75} [2024-01-30 14:26:03,294 INFO L281 CegarLoopForPetriNet]: 97 programPoint places, -16 predicate places. [2024-01-30 14:26:03,294 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 75 transitions, 204 flow [2024-01-30 14:26:03,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 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 14:26:03,294 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:26:03,295 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:26:03,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:26:03,295 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (and 58 more)] === [2024-01-30 14:26:03,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:26:03,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1670016909, now seen corresponding path program 1 times [2024-01-30 14:26:03,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:26:03,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551619112] [2024-01-30 14:26:03,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:26:03,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:26:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:26:03,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:26:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:26:03,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:26:03,333 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:26:03,334 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 61 remaining) [2024-01-30 14:26:03,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 61 remaining) [2024-01-30 14:26:03,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 61 remaining) [2024-01-30 14:26:03,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 61 remaining) [2024-01-30 14:26:03,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 61 remaining) [2024-01-30 14:26:03,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 61 remaining) [2024-01-30 14:26:03,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 61 remaining) [2024-01-30 14:26:03,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 61 remaining) [2024-01-30 14:26:03,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 61 remaining) [2024-01-30 14:26:03,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 61 remaining) [2024-01-30 14:26:03,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 61 remaining) [2024-01-30 14:26:03,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 61 remaining) [2024-01-30 14:26:03,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 61 remaining) [2024-01-30 14:26:03,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 61 remaining) [2024-01-30 14:26:03,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 61 remaining) [2024-01-30 14:26:03,338 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 61 remaining) [2024-01-30 14:26:03,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 61 remaining) [2024-01-30 14:26:03,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 61 remaining) [2024-01-30 14:26:03,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 61 remaining) [2024-01-30 14:26:03,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 61 remaining) [2024-01-30 14:26:03,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 61 remaining) [2024-01-30 14:26:03,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 61 remaining) [2024-01-30 14:26:03,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 61 remaining) [2024-01-30 14:26:03,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 61 remaining) [2024-01-30 14:26:03,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (36 of 61 remaining) [2024-01-30 14:26:03,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 61 remaining) [2024-01-30 14:26:03,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 61 remaining) [2024-01-30 14:26:03,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 61 remaining) [2024-01-30 14:26:03,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 61 remaining) [2024-01-30 14:26:03,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 61 remaining) [2024-01-30 14:26:03,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 61 remaining) [2024-01-30 14:26:03,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err6ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 61 remaining) [2024-01-30 14:26:03,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 61 remaining) [2024-01-30 14:26:03,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 61 remaining) [2024-01-30 14:26:03,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 61 remaining) [2024-01-30 14:26:03,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err5ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 61 remaining) [2024-01-30 14:26:03,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 61 remaining) [2024-01-30 14:26:03,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 61 remaining) [2024-01-30 14:26:03,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 61 remaining) [2024-01-30 14:26:03,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 61 remaining) [2024-01-30 14:26:03,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 61 remaining) [2024-01-30 14:26:03,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 61 remaining) [2024-01-30 14:26:03,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 61 remaining) [2024-01-30 14:26:03,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 61 remaining) [2024-01-30 14:26:03,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 61 remaining) [2024-01-30 14:26:03,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 61 remaining) [2024-01-30 14:26:03,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 61 remaining) [2024-01-30 14:26:03,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 61 remaining) [2024-01-30 14:26:03,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 61 remaining) [2024-01-30 14:26:03,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 61 remaining) [2024-01-30 14:26:03,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 61 remaining) [2024-01-30 14:26:03,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 61 remaining) [2024-01-30 14:26:03,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 61 remaining) [2024-01-30 14:26:03,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 61 remaining) [2024-01-30 14:26:03,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 61 remaining) [2024-01-30 14:26:03,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 61 remaining) [2024-01-30 14:26:03,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 61 remaining) [2024-01-30 14:26:03,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 61 remaining) [2024-01-30 14:26:03,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 61 remaining) [2024-01-30 14:26:03,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 61 remaining) [2024-01-30 14:26:03,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err5ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 61 remaining) [2024-01-30 14:26:03,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:26:03,347 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:26:03,352 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:26:03,352 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:26:03,367 INFO L503 ceAbstractionStarter]: Automizer considered 30 witness invariants [2024-01-30 14:26:03,368 INFO L504 ceAbstractionStarter]: WitnessConsidered=30 [2024-01-30 14:26:03,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:26:03 BasicIcfg [2024-01-30 14:26:03,368 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:26:03,369 INFO L158 Benchmark]: Toolchain (without parser) took 35263.01ms. Allocated memory was 142.6MB in the beginning and 14.4GB in the end (delta: 14.3GB). Free memory was 65.1MB in the beginning and 12.4GB in the end (delta: -12.3GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2024-01-30 14:26:03,369 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:26:03,369 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:26:03,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.79ms. Allocated memory was 142.6MB in the beginning and 211.8MB in the end (delta: 69.2MB). Free memory was 64.9MB in the beginning and 173.2MB in the end (delta: -108.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-01-30 14:26:03,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.54ms. Allocated memory is still 211.8MB. Free memory was 173.2MB in the beginning and 170.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:26:03,370 INFO L158 Benchmark]: Boogie Preprocessor took 73.08ms. Allocated memory is still 211.8MB. Free memory was 170.0MB in the beginning and 166.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-30 14:26:03,370 INFO L158 Benchmark]: RCFGBuilder took 756.20ms. Allocated memory is still 211.8MB. Free memory was 166.9MB in the beginning and 84.0MB in the end (delta: 82.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2024-01-30 14:26:03,370 INFO L158 Benchmark]: TraceAbstraction took 33957.98ms. Allocated memory was 211.8MB in the beginning and 14.4GB in the end (delta: 14.2GB). Free memory was 84.0MB in the beginning and 12.4GB in the end (delta: -12.3GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. [2024-01-30 14:26:03,372 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 142.6MB. Free memory is still 95.1MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory is still 111.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.79ms. Allocated memory was 142.6MB in the beginning and 211.8MB in the end (delta: 69.2MB). Free memory was 64.9MB in the beginning and 173.2MB in the end (delta: -108.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.54ms. Allocated memory is still 211.8MB. Free memory was 173.2MB in the beginning and 170.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.08ms. Allocated memory is still 211.8MB. Free memory was 170.0MB in the beginning and 166.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 756.20ms. Allocated memory is still 211.8MB. Free memory was 166.9MB in the beginning and 84.0MB in the end (delta: 82.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. * TraceAbstraction took 33957.98ms. Allocated memory was 211.8MB in the beginning and 14.4GB in the end (delta: 14.2GB). Free memory was 84.0MB in the beginning and 12.4GB in the end (delta: -12.3GB). Peak memory consumption was 2.0GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int N, counter, c; [L83] 0 pthread_t t1, t2, t3, t4; VAL [N=0, c=0, counter=0, t1={3:0}, t2={6:0}, t3={5:0}, t4={7:0}] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[N],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]]] [L85] 0 N = __VERIFIER_nondet_uint() [L86] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[c]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[c]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]]] [L86] 0 c = __VERIFIER_nondet_uint() [L88] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] [L88] CALL 0 assume_abort_if_not(c > 0) [L35] COND FALSE 0 !(!cond) [L88] RET 0 assume_abort_if_not(c > 0) [L91] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] [L91] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, c=1, counter=0, t1={3:0}, t2={6:0}, t3={5:0}, t4={7:0}] [L41] 1 unsigned int i=0; VAL [_argptr={0:0}, _argptr={0:0}, c=1, counter=0, i=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]],BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[COMPLEQ,IntegerLiteral[12U],IdentifierExpression[i]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[11U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[10U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[9U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[8U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[7U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[6U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[5U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[4U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[3U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[2U]]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[1U]]],BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IntegerLiteral[0U],IdentifierExpression[i]],BinaryExpression[COMPEQ,IdentifierExpression[i],IntegerLiteral[0U]]]]]]] VAL [_argptr={0:0}, _argptr={0:0}, c=1, counter=0, i=0] [L41] COND TRUE 1 i