./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/mult-flipped-dist.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/mult-flipped-dist.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/mult-flipped-dist.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-ab2e0ac-m [2024-01-29 14:18:24,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:18:24,863 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:18:24,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:18:24,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:18:24,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:18:24,993 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:18:24,993 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:18:24,994 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:18:24,994 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:18:24,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:18:24,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:18:24,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:18:24,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:18:24,995 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:18:24,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:18:24,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:18:24,996 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:18:24,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:18:24,997 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:18:24,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:18:24,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:18:24,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:18:24,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:18:24,998 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:18:24,999 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:18:24,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:18:25,006 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:18:25,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:18:25,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:18:25,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:18:25,007 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:18:25,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:18:25,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:18:25,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:18:25,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:18:25,008 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:18:25,008 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:18:25,008 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:18:25,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:18:25,008 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:18:25,009 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:18:25,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:18:25,009 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:18:25,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:18:25,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:18:25,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:18:25,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:18:25,264 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:18:25,265 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c [2024-01-29 14:18:26,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:18:26,509 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:18:26,511 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c [2024-01-29 14:18:26,520 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a40b5a27d/dd55feb5f4994b4aa39fd60fedc00dcd/FLAG76746a411 [2024-01-29 14:18:26,535 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a40b5a27d/dd55feb5f4994b4aa39fd60fedc00dcd [2024-01-29 14:18:26,537 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:18:26,539 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:18:26,539 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/mult-flipped-dist.wvr.yml/witness.yml [2024-01-29 14:18:26,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:18:26,610 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:18:26,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:18:26,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:18:26,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:18:26,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:18:26" (1/2) ... [2024-01-29 14:18:26,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdbd134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:26, skipping insertion in model container [2024-01-29 14:18:26,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:18:26" (1/2) ... [2024-01-29 14:18:26,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@42b9434c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:26, skipping insertion in model container [2024-01-29 14:18:26,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:26" (2/2) ... [2024-01-29 14:18:26,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bdbd134 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26, skipping insertion in model container [2024-01-29 14:18:26,627 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:26" (2/2) ... [2024-01-29 14:18:26,627 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:18:26,643 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:18:26,646 INFO L98 nessWitnessExtractor]: Loop invariant at [L42-L44] (((((((((((12U <= i || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-01-29 14:18:26,647 INFO L98 nessWitnessExtractor]: Loop invariant at [L42-L44] (unsigned long )_argptr == 0UL [2024-01-29 14:18:26,647 INFO L98 nessWitnessExtractor]: Loop invariant at [L50-L52] ((((((((((((0U == i && i == 0U) || 12U <= i) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U [2024-01-29 14:18:26,647 INFO L98 nessWitnessExtractor]: Loop invariant at [L50-L52] (unsigned long )_argptr == 0UL [2024-01-29 14:18:26,647 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-29 14:18:26,647 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] ((((((((((((0U == i && i == 0U) || (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 [2024-01-29 14:18:26,647 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (0LL - (long long )a) + (long long )c >= 0LL [2024-01-29 14:18:26,648 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] x_1 == 0U [2024-01-29 14:18:26,648 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] x_3 == 0U [2024-01-29 14:18:26,648 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (long long )a - (long long )c >= 0LL [2024-01-29 14:18:26,648 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] c == 0U [2024-01-29 14:18:26,648 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] b == 0U [2024-01-29 14:18:26,648 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] a == 0U [2024-01-29 14:18:26,649 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (long long )a + (long long )c >= 0LL [2024-01-29 14:18:26,649 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] x_2 == 0U [2024-01-29 14:18:26,649 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (0LL - (long long )a) - (long long )c >= 0LL [2024-01-29 14:18:26,649 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-01-29 14:18:26,649 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (((((((((((i == 2U || i == 1U) || (0U == i && i == 0U)) || (12U <= i && i <= 4294967294U)) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U [2024-01-29 14:18:26,649 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] x_1 == 0U [2024-01-29 14:18:26,649 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] x_2 == 0U [2024-01-29 14:18:26,650 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] b == 0U [2024-01-29 14:18:26,650 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] x_3 == 0U [2024-01-29 14:18:26,650 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] c == 0U [2024-01-29 14:18:26,651 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-29 14:18:26,651 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] x_2 == 0U [2024-01-29 14:18:26,651 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] x_1 == 0U [2024-01-29 14:18:26,651 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] x_3 == 0U [2024-01-29 14:18:26,651 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] c == 0U [2024-01-29 14:18:26,651 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] x_3 == 0U [2024-01-29 14:18:26,651 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-01-29 14:18:26,652 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] x_1 == 0U [2024-01-29 14:18:26,652 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] x_2 == 0U [2024-01-29 14:18:26,652 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] c == 0U [2024-01-29 14:18:26,652 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-29 14:18:26,652 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-29 14:18:26,653 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] x_1 == 0U [2024-01-29 14:18:26,653 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] x_3 == 0U [2024-01-29 14:18:26,653 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] x_2 == 0U [2024-01-29 14:18:26,654 INFO L98 nessWitnessExtractor]: Loop invariant at [L58-L60] (((((((((((i == 3U || i == 2U) || i == 1U) || (0U == i && i == 0U)) || 12U <= i) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U [2024-01-29 14:18:26,655 INFO L98 nessWitnessExtractor]: Loop invariant at [L58-L60] (unsigned long )_argptr == 0UL [2024-01-29 14:18:26,655 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-29 14:18:26,674 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:18:26,807 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/mult-flipped-dist.wvr.c[2174,2187] [2024-01-29 14:18:26,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:18:26,820 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:18:26,930 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/mult-flipped-dist.wvr.c[2174,2187] [2024-01-29 14:18:26,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:18:26,942 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:18:26,943 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26 WrapperNode [2024-01-29 14:18:26,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:18:26,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:18:26,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:18:26,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:18:26,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:26,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:26,973 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2024-01-29 14:18:26,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:18:26,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:18:26,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:18:26,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:18:26,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:26,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:26,987 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:27,001 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-29 14:18:27,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:27,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:27,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:27,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:27,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:27,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:27,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:18:27,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:18:27,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:18:27,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:18:27,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (1/1) ... [2024-01-29 14:18:27,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:18:27,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:18:27,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 14:18:27,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 14:18:27,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:18:27,164 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:18:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:18:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:18:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:18:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 14:18:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 14:18:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:18:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:18:27,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:18:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:18:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:18:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:18:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:18:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:18:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:18:27,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:18:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:18:27,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:18:27,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:18:27,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:18:27,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:18:27,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:18:27,170 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:18:27,266 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:18:27,267 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:18:27,680 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:18:27,680 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:18:27,846 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:18:27,846 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-29 14:18:27,846 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:18:27 BoogieIcfgContainer [2024-01-29 14:18:27,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:18:27,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:18:27,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:18:27,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:18:27,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:18:26" (1/4) ... [2024-01-29 14:18:27,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ddce34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:18:27, skipping insertion in model container [2024-01-29 14:18:27,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:26" (2/4) ... [2024-01-29 14:18:27,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ddce34 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:18:27, skipping insertion in model container [2024-01-29 14:18:27,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:26" (3/4) ... [2024-01-29 14:18:27,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ddce34 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:18:27, skipping insertion in model container [2024-01-29 14:18:27,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:18:27" (4/4) ... [2024-01-29 14:18:27,853 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-flipped-dist.wvr.c [2024-01-29 14:18:27,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:18:27,867 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2024-01-29 14:18:27,867 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:18:28,041 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-29 14:18:28,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 121 transitions, 263 flow [2024-01-29 14:18:28,190 INFO L124 PetriNetUnfolderBase]: 3/118 cut-off events. [2024-01-29 14:18:28,191 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-29 14:18:28,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 118 events. 3/118 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 286 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2024-01-29 14:18:28,197 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 121 transitions, 263 flow [2024-01-29 14:18:28,203 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 124 places, 117 transitions, 252 flow [2024-01-29 14:18:28,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:18:28,233 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;@46156e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:18:28,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 76 error locations. [2024-01-29 14:18:28,237 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:18:28,237 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:18:28,237 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:18:28,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:28,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:18:28,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 73 more)] === [2024-01-29 14:18:28,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:28,244 INFO L85 PathProgramCache]: Analyzing trace with hash 12313, now seen corresponding path program 1 times [2024-01-29 14:18:28,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:28,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135386291] [2024-01-29 14:18:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:28,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:28,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:28,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:28,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135386291] [2024-01-29 14:18:28,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135386291] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:28,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:28,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:28,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896416717] [2024-01-29 14:18:28,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:28,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:28,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:28,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:28,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:28,594 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 121 [2024-01-29 14:18:28,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 117 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:28,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:28,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 121 [2024-01-29 14:18:28,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:29,114 INFO L124 PetriNetUnfolderBase]: 1353/2520 cut-off events. [2024-01-29 14:18:29,114 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2024-01-29 14:18:29,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4668 conditions, 2520 events. 1353/2520 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 18118 event pairs, 1305 based on Foata normal form. 593/2524 useless extension candidates. Maximal degree in co-relation 4137. Up to 2000 conditions per place. [2024-01-29 14:18:29,145 INFO L140 encePairwiseOnDemand]: 107/121 looper letters, 33 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2024-01-29 14:18:29,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 105 transitions, 298 flow [2024-01-29 14:18:29,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:29,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:29,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 266 transitions. [2024-01-29 14:18:29,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7327823691460055 [2024-01-29 14:18:29,162 INFO L175 Difference]: Start difference. First operand has 124 places, 117 transitions, 252 flow. Second operand 3 states and 266 transitions. [2024-01-29 14:18:29,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 105 transitions, 298 flow [2024-01-29 14:18:29,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 286 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-29 14:18:29,174 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 220 flow [2024-01-29 14:18:29,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2024-01-29 14:18:29,180 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -16 predicate places. [2024-01-29 14:18:29,180 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 220 flow [2024-01-29 14:18:29,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:29,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:29,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:18:29,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:18:29,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 73 more)] === [2024-01-29 14:18:29,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:29,189 INFO L85 PathProgramCache]: Analyzing trace with hash 382069, now seen corresponding path program 1 times [2024-01-29 14:18:29,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:29,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091755921] [2024-01-29 14:18:29,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:29,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:29,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:29,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091755921] [2024-01-29 14:18:29,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091755921] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:29,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:29,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:29,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029762007] [2024-01-29 14:18:29,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:29,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:29,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:29,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:29,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:29,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 121 [2024-01-29 14:18:29,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 105 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:29,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:29,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 121 [2024-01-29 14:18:29,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:29,530 INFO L124 PetriNetUnfolderBase]: 1109/2497 cut-off events. [2024-01-29 14:18:29,531 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-01-29 14:18:29,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4204 conditions, 2497 events. 1109/2497 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 19307 event pairs, 535 based on Foata normal form. 44/2204 useless extension candidates. Maximal degree in co-relation 4183. Up to 841 conditions per place. [2024-01-29 14:18:29,545 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 48 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2024-01-29 14:18:29,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 121 transitions, 356 flow [2024-01-29 14:18:29,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:29,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:29,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2024-01-29 14:18:29,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8044077134986226 [2024-01-29 14:18:29,548 INFO L175 Difference]: Start difference. First operand has 108 places, 105 transitions, 220 flow. Second operand 3 states and 292 transitions. [2024-01-29 14:18:29,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 121 transitions, 356 flow [2024-01-29 14:18:29,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 121 transitions, 352 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:29,551 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 220 flow [2024-01-29 14:18:29,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2024-01-29 14:18:29,552 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -19 predicate places. [2024-01-29 14:18:29,552 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 220 flow [2024-01-29 14:18:29,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:29,553 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:29,553 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:18:29,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:18:29,553 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 73 more)] === [2024-01-29 14:18:29,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:29,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1502229307, now seen corresponding path program 1 times [2024-01-29 14:18:29,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:29,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587095228] [2024-01-29 14:18:29,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:29,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:29,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:29,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:29,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:29,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587095228] [2024-01-29 14:18:29,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587095228] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:29,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:29,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:29,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265141235] [2024-01-29 14:18:29,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:29,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:29,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:29,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:29,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:29,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 121 [2024-01-29 14:18:29,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 102 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:29,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:29,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 121 [2024-01-29 14:18:29,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:29,872 INFO L124 PetriNetUnfolderBase]: 1091/2105 cut-off events. [2024-01-29 14:18:29,872 INFO L125 PetriNetUnfolderBase]: For 177/185 co-relation queries the response was YES. [2024-01-29 14:18:29,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4007 conditions, 2105 events. 1091/2105 cut-off events. For 177/185 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 14491 event pairs, 981 based on Foata normal form. 2/1746 useless extension candidates. Maximal degree in co-relation 1936. Up to 1621 conditions per place. [2024-01-29 14:18:29,883 INFO L140 encePairwiseOnDemand]: 117/121 looper letters, 28 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2024-01-29 14:18:29,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 100 transitions, 276 flow [2024-01-29 14:18:29,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:29,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:29,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2024-01-29 14:18:29,885 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7630853994490359 [2024-01-29 14:18:29,885 INFO L175 Difference]: Start difference. First operand has 105 places, 102 transitions, 220 flow. Second operand 3 states and 277 transitions. [2024-01-29 14:18:29,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 100 transitions, 276 flow [2024-01-29 14:18:29,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 100 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:18:29,888 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 218 flow [2024-01-29 14:18:29,889 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2024-01-29 14:18:29,890 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -20 predicate places. [2024-01-29 14:18:29,890 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 218 flow [2024-01-29 14:18:29,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:29,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:29,890 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:29,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:18:29,891 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 73 more)] === [2024-01-29 14:18:29,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:29,891 INFO L85 PathProgramCache]: Analyzing trace with hash 646290616, now seen corresponding path program 1 times [2024-01-29 14:18:29,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:29,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386201588] [2024-01-29 14:18:29,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:29,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:29,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:29,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:29,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386201588] [2024-01-29 14:18:29,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386201588] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:29,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:29,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:29,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642221322] [2024-01-29 14:18:29,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:29,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:29,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:29,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:29,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:29,976 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 121 [2024-01-29 14:18:29,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:29,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:29,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 121 [2024-01-29 14:18:29,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:30,315 INFO L124 PetriNetUnfolderBase]: 1671/3614 cut-off events. [2024-01-29 14:18:30,315 INFO L125 PetriNetUnfolderBase]: For 271/279 co-relation queries the response was YES. [2024-01-29 14:18:30,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6357 conditions, 3614 events. 1671/3614 cut-off events. For 271/279 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 28581 event pairs, 819 based on Foata normal form. 4/3054 useless extension candidates. Maximal degree in co-relation 6328. Up to 1324 conditions per place. [2024-01-29 14:18:30,342 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 48 selfloop transitions, 2 changer transitions 0/115 dead transitions. [2024-01-29 14:18:30,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 115 transitions, 355 flow [2024-01-29 14:18:30,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:30,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:30,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 290 transitions. [2024-01-29 14:18:30,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7988980716253443 [2024-01-29 14:18:30,347 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 218 flow. Second operand 3 states and 290 transitions. [2024-01-29 14:18:30,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 115 transitions, 355 flow [2024-01-29 14:18:30,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 115 transitions, 351 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:30,353 INFO L231 Difference]: Finished difference. Result has 101 places, 97 transitions, 218 flow [2024-01-29 14:18:30,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=101, PETRI_TRANSITIONS=97} [2024-01-29 14:18:30,355 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -23 predicate places. [2024-01-29 14:18:30,355 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 97 transitions, 218 flow [2024-01-29 14:18:30,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:30,355 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:30,355 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:30,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:18:30,356 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 73 more)] === [2024-01-29 14:18:30,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:30,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1439826942, now seen corresponding path program 1 times [2024-01-29 14:18:30,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:30,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571525719] [2024-01-29 14:18:30,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:30,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:30,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:30,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:30,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571525719] [2024-01-29 14:18:30,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571525719] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:30,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:30,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:30,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927620052] [2024-01-29 14:18:30,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:30,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:30,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:30,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:30,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:30,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 121 [2024-01-29 14:18:30,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:30,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:30,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 121 [2024-01-29 14:18:30,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:30,869 INFO L124 PetriNetUnfolderBase]: 2799/6185 cut-off events. [2024-01-29 14:18:30,869 INFO L125 PetriNetUnfolderBase]: For 733/769 co-relation queries the response was YES. [2024-01-29 14:18:30,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11270 conditions, 6185 events. 2799/6185 cut-off events. For 733/769 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 52478 event pairs, 1140 based on Foata normal form. 103/5382 useless extension candidates. Maximal degree in co-relation 6152. Up to 2059 conditions per place. [2024-01-29 14:18:30,905 INFO L140 encePairwiseOnDemand]: 114/121 looper letters, 54 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2024-01-29 14:18:30,905 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 117 transitions, 384 flow [2024-01-29 14:18:30,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:30,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2024-01-29 14:18:30,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8099173553719008 [2024-01-29 14:18:30,907 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 218 flow. Second operand 3 states and 294 transitions. [2024-01-29 14:18:30,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 117 transitions, 384 flow [2024-01-29 14:18:30,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 117 transitions, 381 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:18:30,909 INFO L231 Difference]: Finished difference. Result has 99 places, 94 transitions, 220 flow [2024-01-29 14:18:30,909 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=99, PETRI_TRANSITIONS=94} [2024-01-29 14:18:30,911 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -25 predicate places. [2024-01-29 14:18:30,911 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 94 transitions, 220 flow [2024-01-29 14:18:30,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:30,911 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:30,911 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:30,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:18:30,912 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 73 more)] === [2024-01-29 14:18:30,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:30,912 INFO L85 PathProgramCache]: Analyzing trace with hash -694208274, now seen corresponding path program 1 times [2024-01-29 14:18:30,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:30,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870673067] [2024-01-29 14:18:30,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:30,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:30,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:30,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:30,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870673067] [2024-01-29 14:18:30,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870673067] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:30,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:30,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:18:30,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710030881] [2024-01-29 14:18:30,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:30,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:30,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:30,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:30,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:30,957 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 121 [2024-01-29 14:18:30,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 220 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:30,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:30,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 121 [2024-01-29 14:18:30,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:31,617 INFO L124 PetriNetUnfolderBase]: 4623/9228 cut-off events. [2024-01-29 14:18:31,617 INFO L125 PetriNetUnfolderBase]: For 1172/1172 co-relation queries the response was YES. [2024-01-29 14:18:31,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17676 conditions, 9228 events. 4623/9228 cut-off events. For 1172/1172 co-relation queries the response was YES. Maximal size of possible extension queue 430. Compared 78570 event pairs, 2569 based on Foata normal form. 0/7447 useless extension candidates. Maximal degree in co-relation 11965. Up to 4138 conditions per place. [2024-01-29 14:18:31,659 INFO L140 encePairwiseOnDemand]: 113/121 looper letters, 60 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2024-01-29 14:18:31,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 113 transitions, 393 flow [2024-01-29 14:18:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:31,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:31,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 277 transitions. [2024-01-29 14:18:31,661 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7630853994490359 [2024-01-29 14:18:31,661 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 220 flow. Second operand 3 states and 277 transitions. [2024-01-29 14:18:31,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 113 transitions, 393 flow [2024-01-29 14:18:31,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 113 transitions, 387 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 14:18:31,672 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 217 flow [2024-01-29 14:18:31,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2024-01-29 14:18:31,674 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -28 predicate places. [2024-01-29 14:18:31,675 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 217 flow [2024-01-29 14:18:31,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:31,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:31,675 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:31,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:18:31,675 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 73 more)] === [2024-01-29 14:18:31,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:31,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1747606348, now seen corresponding path program 1 times [2024-01-29 14:18:31,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:31,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913068490] [2024-01-29 14:18:31,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:31,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:31,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:31,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:31,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913068490] [2024-01-29 14:18:31,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913068490] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:31,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:31,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:18:31,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206039733] [2024-01-29 14:18:31,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:31,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:18:31,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:31,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:18:31,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:18:31,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 121 [2024-01-29 14:18:31,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 217 flow. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:31,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:31,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 121 [2024-01-29 14:18:31,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:32,440 INFO L124 PetriNetUnfolderBase]: 2946/6817 cut-off events. [2024-01-29 14:18:32,440 INFO L125 PetriNetUnfolderBase]: For 1017/1017 co-relation queries the response was YES. [2024-01-29 14:18:32,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12614 conditions, 6817 events. 2946/6817 cut-off events. For 1017/1017 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 61837 event pairs, 254 based on Foata normal form. 422/6743 useless extension candidates. Maximal degree in co-relation 6809. Up to 3960 conditions per place. [2024-01-29 14:18:32,470 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 44 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2024-01-29 14:18:32,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 101 transitions, 341 flow [2024-01-29 14:18:32,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:18:32,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:18:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2024-01-29 14:18:32,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.756198347107438 [2024-01-29 14:18:32,472 INFO L175 Difference]: Start difference. First operand has 96 places, 90 transitions, 217 flow. Second operand 4 states and 366 transitions. [2024-01-29 14:18:32,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 101 transitions, 341 flow [2024-01-29 14:18:32,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 101 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:32,481 INFO L231 Difference]: Finished difference. Result has 93 places, 86 transitions, 207 flow [2024-01-29 14:18:32,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=207, PETRI_PLACES=93, PETRI_TRANSITIONS=86} [2024-01-29 14:18:32,482 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -31 predicate places. [2024-01-29 14:18:32,482 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 86 transitions, 207 flow [2024-01-29 14:18:32,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:32,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:32,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:32,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:18:32,483 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 73 more)] === [2024-01-29 14:18:32,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:32,484 INFO L85 PathProgramCache]: Analyzing trace with hash 101704726, now seen corresponding path program 1 times [2024-01-29 14:18:32,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:32,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025291632] [2024-01-29 14:18:32,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:32,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:32,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:32,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025291632] [2024-01-29 14:18:32,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025291632] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:32,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:32,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:18:32,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037008066] [2024-01-29 14:18:32,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:32,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:18:32,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:32,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:18:32,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:18:32,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 121 [2024-01-29 14:18:32,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 86 transitions, 207 flow. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:32,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:32,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 121 [2024-01-29 14:18:32,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:33,054 INFO L124 PetriNetUnfolderBase]: 2852/6198 cut-off events. [2024-01-29 14:18:33,055 INFO L125 PetriNetUnfolderBase]: For 937/937 co-relation queries the response was YES. [2024-01-29 14:18:33,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11673 conditions, 6198 events. 2852/6198 cut-off events. For 937/937 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 53492 event pairs, 438 based on Foata normal form. 636/6223 useless extension candidates. Maximal degree in co-relation 10347. Up to 3773 conditions per place. [2024-01-29 14:18:33,081 INFO L140 encePairwiseOnDemand]: 115/121 looper letters, 47 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2024-01-29 14:18:33,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 100 transitions, 343 flow [2024-01-29 14:18:33,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:18:33,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:18:33,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2024-01-29 14:18:33,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7644628099173554 [2024-01-29 14:18:33,083 INFO L175 Difference]: Start difference. First operand has 93 places, 86 transitions, 207 flow. Second operand 4 states and 370 transitions. [2024-01-29 14:18:33,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 100 transitions, 343 flow [2024-01-29 14:18:33,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 100 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:33,085 INFO L231 Difference]: Finished difference. Result has 90 places, 82 transitions, 200 flow [2024-01-29 14:18:33,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=200, PETRI_PLACES=90, PETRI_TRANSITIONS=82} [2024-01-29 14:18:33,086 INFO L281 CegarLoopForPetriNet]: 124 programPoint places, -34 predicate places. [2024-01-29 14:18:33,086 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 82 transitions, 200 flow [2024-01-29 14:18:33,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 4 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:33,086 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:33,087 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:33,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 14:18:33,087 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 73 more)] === [2024-01-29 14:18:33,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:33,087 INFO L85 PathProgramCache]: Analyzing trace with hash -652378062, now seen corresponding path program 1 times [2024-01-29 14:18:33,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:33,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554306653] [2024-01-29 14:18:33,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:33,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:18:33,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:18:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:18:33,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:18:33,121 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:18:33,122 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 76 remaining) [2024-01-29 14:18:33,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 76 remaining) [2024-01-29 14:18:33,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 76 remaining) [2024-01-29 14:18:33,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 76 remaining) [2024-01-29 14:18:33,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 76 remaining) [2024-01-29 14:18:33,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 76 remaining) [2024-01-29 14:18:33,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 76 remaining) [2024-01-29 14:18:33,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 76 remaining) [2024-01-29 14:18:33,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 76 remaining) [2024-01-29 14:18:33,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 76 remaining) [2024-01-29 14:18:33,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 76 remaining) [2024-01-29 14:18:33,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 76 remaining) [2024-01-29 14:18:33,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 76 remaining) [2024-01-29 14:18:33,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 76 remaining) [2024-01-29 14:18:33,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 76 remaining) [2024-01-29 14:18:33,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 76 remaining) [2024-01-29 14:18:33,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 76 remaining) [2024-01-29 14:18:33,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 76 remaining) [2024-01-29 14:18:33,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 76 remaining) [2024-01-29 14:18:33,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 76 remaining) [2024-01-29 14:18:33,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 76 remaining) [2024-01-29 14:18:33,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 76 remaining) [2024-01-29 14:18:33,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 76 remaining) [2024-01-29 14:18:33,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 76 remaining) [2024-01-29 14:18:33,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 76 remaining) [2024-01-29 14:18:33,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 76 remaining) [2024-01-29 14:18:33,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 76 remaining) [2024-01-29 14:18:33,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 76 remaining) [2024-01-29 14:18:33,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 76 remaining) [2024-01-29 14:18:33,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 76 remaining) [2024-01-29 14:18:33,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 76 remaining) [2024-01-29 14:18:33,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 76 remaining) [2024-01-29 14:18:33,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 76 remaining) [2024-01-29 14:18:33,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 76 remaining) [2024-01-29 14:18:33,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 76 remaining) [2024-01-29 14:18:33,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 76 remaining) [2024-01-29 14:18:33,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 76 remaining) [2024-01-29 14:18:33,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 76 remaining) [2024-01-29 14:18:33,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 76 remaining) [2024-01-29 14:18:33,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 76 remaining) [2024-01-29 14:18:33,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 76 remaining) [2024-01-29 14:18:33,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 76 remaining) [2024-01-29 14:18:33,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 76 remaining) [2024-01-29 14:18:33,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 76 remaining) [2024-01-29 14:18:33,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 76 remaining) [2024-01-29 14:18:33,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 76 remaining) [2024-01-29 14:18:33,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 76 remaining) [2024-01-29 14:18:33,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 76 remaining) [2024-01-29 14:18:33,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION (27 of 76 remaining) [2024-01-29 14:18:33,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 76 remaining) [2024-01-29 14:18:33,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 76 remaining) [2024-01-29 14:18:33,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 76 remaining) [2024-01-29 14:18:33,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 76 remaining) [2024-01-29 14:18:33,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 76 remaining) [2024-01-29 14:18:33,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 76 remaining) [2024-01-29 14:18:33,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 76 remaining) [2024-01-29 14:18:33,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 76 remaining) [2024-01-29 14:18:33,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 76 remaining) [2024-01-29 14:18:33,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 76 remaining) [2024-01-29 14:18:33,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 76 remaining) [2024-01-29 14:18:33,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 76 remaining) [2024-01-29 14:18:33,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 76 remaining) [2024-01-29 14:18:33,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 76 remaining) [2024-01-29 14:18:33,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 76 remaining) [2024-01-29 14:18:33,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 76 remaining) [2024-01-29 14:18:33,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 76 remaining) [2024-01-29 14:18:33,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 76 remaining) [2024-01-29 14:18:33,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 76 remaining) [2024-01-29 14:18:33,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 76 remaining) [2024-01-29 14:18:33,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 76 remaining) [2024-01-29 14:18:33,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 76 remaining) [2024-01-29 14:18:33,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 76 remaining) [2024-01-29 14:18:33,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 76 remaining) [2024-01-29 14:18:33,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 76 remaining) [2024-01-29 14:18:33,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 76 remaining) [2024-01-29 14:18:33,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 76 remaining) [2024-01-29 14:18:33,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 14:18:33,135 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:18:33,140 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:18:33,140 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:18:33,164 INFO L503 ceAbstractionStarter]: Automizer considered 47 witness invariants [2024-01-29 14:18:33,164 INFO L504 ceAbstractionStarter]: WitnessConsidered=47 [2024-01-29 14:18:33,165 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:18:33 BasicIcfg [2024-01-29 14:18:33,165 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:18:33,165 INFO L158 Benchmark]: Toolchain (without parser) took 6555.75ms. Allocated memory was 180.4MB in the beginning and 585.1MB in the end (delta: 404.8MB). Free memory was 118.3MB in the beginning and 374.9MB in the end (delta: -256.6MB). Peak memory consumption was 149.5MB. Max. memory is 16.1GB. [2024-01-29 14:18:33,165 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 180.4MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:33,166 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:18:33,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.06ms. Allocated memory is still 180.4MB. Free memory was 118.1MB in the beginning and 100.3MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-01-29 14:18:33,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.13ms. Allocated memory is still 180.4MB. Free memory was 100.3MB in the beginning and 98.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:18:33,166 INFO L158 Benchmark]: Boogie Preprocessor took 72.12ms. Allocated memory is still 180.4MB. Free memory was 98.5MB in the beginning and 95.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:18:33,166 INFO L158 Benchmark]: RCFGBuilder took 799.58ms. Allocated memory is still 180.4MB. Free memory was 95.9MB in the beginning and 54.4MB in the end (delta: 41.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-01-29 14:18:33,167 INFO L158 Benchmark]: TraceAbstraction took 5316.76ms. Allocated memory was 180.4MB in the beginning and 585.1MB in the end (delta: 404.8MB). Free memory was 53.8MB in the beginning and 374.9MB in the end (delta: -321.1MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. [2024-01-29 14:18:33,168 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 180.4MB. Free memory is still 145.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.06ms. Allocated memory is still 180.4MB. Free memory was 118.1MB in the beginning and 100.3MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.13ms. Allocated memory is still 180.4MB. Free memory was 100.3MB in the beginning and 98.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.12ms. Allocated memory is still 180.4MB. Free memory was 98.5MB in the beginning and 95.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 799.58ms. Allocated memory is still 180.4MB. Free memory was 95.9MB in the beginning and 54.4MB in the end (delta: 41.5MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5316.76ms. Allocated memory was 180.4MB in the beginning and 585.1MB in the end (delta: 404.8MB). Free memory was 53.8MB in the beginning and 374.9MB in the end (delta: -321.1MB). Peak memory consumption was 84.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int x_1, x_2, x_3, a, b, c; [L66] 0 pthread_t t1, t2, t3; VAL [a=0, b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[c]]],IntegerLiteral[0LL]]]] VAL [a=0, b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]]] VAL [a=0, b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[a]],CastExpression[ACSLType[long long],IdentifierExpression[c]]],IntegerLiteral[0LL]]]] VAL [a=0, b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[a],IntegerLiteral[0U]]]] VAL [a=0, b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[b],IntegerLiteral[0U]]]] VAL [a=0, b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]] VAL [a=0, b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[a]],CastExpression[ACSLType[long long],IdentifierExpression[c]]],IntegerLiteral[0LL]]]] VAL [a=0, b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]]] VAL [a=0, b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] VAL [a=0, b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[a]]],CastExpression[ACSLType[long long],IdentifierExpression[c]]],IntegerLiteral[0LL]]]] [L69] 0 a = __VERIFIER_nondet_uint() [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]] VAL [b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]]] VAL [b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[b],IntegerLiteral[0U]]]] VAL [b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]]] VAL [b=0, c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] [L70] 0 b = __VERIFIER_nondet_uint() [L71] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[c],IntegerLiteral[0U]]]] VAL [c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L71] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]]] VAL [c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L71] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] VAL [c=0, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L71] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]]] [L71] 0 c = __VERIFIER_nondet_uint() [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_2],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_3],IntegerLiteral[0U]]]] VAL [t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L73] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x_1],IntegerLiteral[0U]]]] [L73] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={6:0}, t2={5:0}, t3={3:0}, x_1=0, x_2=0, x_3=0] [L42] 1 unsigned int i=0; VAL [_argptr={0:0}, _argptr={0:0}, i=0, x_1=0, x_2=0, x_3=0] [L42] 1 CodeAnnotStmt[Assertion[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}, i=0, x_1=0, x_2=0, x_3=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, i=0, x_1=0, x_2=0, x_3=0] [L42] COND TRUE 1 i