./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-nonblocking-counter-alt2.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-nonblocking-counter-alt2.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-8857f20-m [2024-01-29 22:58:57,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:58:57,574 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:58:57,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:58:57,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:58:57,606 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:58:57,610 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:58:57,611 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:58:57,611 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:58:57,615 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:58:57,615 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:58:57,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:58:57,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:58:57,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:58:57,617 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:58:57,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:58:57,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:58:57,618 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:58:57,618 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:58:57,618 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:58:57,619 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:58:57,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:58:57,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:58:57,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:58:57,620 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:58:57,621 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:58:57,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:58:57,621 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:58:57,621 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:58:57,622 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:58:57,622 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:58:57,622 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:58:57,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:58:57,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:58:57,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:58:57,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:58:57,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:58:57,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:58:57,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:58:57,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:58:57,624 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:58:57,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:58:57,624 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:58:57,624 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:58:57,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:58:57,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:58:57,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:58:57,822 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:58:57,823 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:58:57,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-more-nonblocking-counter-alt2.wvr.yml/witness.yml [2024-01-29 22:58:57,944 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:58:57,944 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:58:57,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-01-29 22:58:58,962 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:58:59,097 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:58:59,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c [2024-01-29 22:58:59,103 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcea5de93/f4172a318a804b4da1f7692d72f173ee/FLAG96f5d1f4b [2024-01-29 22:58:59,113 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fcea5de93/f4172a318a804b4da1f7692d72f173ee [2024-01-29 22:58:59,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:58:59,114 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:58:59,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:58:59,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:58:59,131 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:58:59,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:58:57" (1/2) ... [2024-01-29 22:58:59,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c9fa12 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:58:59, skipping insertion in model container [2024-01-29 22:58:59,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:58:57" (1/2) ... [2024-01-29 22:58:59,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b95ff24 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:58:59, skipping insertion in model container [2024-01-29 22:58:59,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:58:59" (2/2) ... [2024-01-29 22:58:59,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c9fa12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59, skipping insertion in model container [2024-01-29 22:58:59,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:58:59" (2/2) ... [2024-01-29 22:58:59,134 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:58:59,153 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:58:59,156 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-29 22:58:59,156 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] counter == 0U [2024-01-29 22:58:59,156 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] ((unsigned long )_argptr == 0UL) && ((((((((((((i <= 8U || i <= 7U) || i <= 6U) || i <= 5U) || i <= 4U) || (i <= 3U && i <= 65535U)) || i <= 4294967294U) || (i <= 2U && i <= 255U)) || i <= 11U) || (i <= 1U && (i == 0U || i == 1U))) || i <= 10U) || (0U == i && i == 0U)) || i <= 9U) [2024-01-29 22:58:59,156 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-29 22:58:59,157 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] counter == 0U [2024-01-29 22:58:59,157 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-29 22:58:59,157 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] ((1U <= counter) && ((unsigned long )_argptr == 0UL)) && ((((((((((((i <= 7U || i <= 6U) || i <= 5U) || i <= 4U) || (i <= 3U && i <= 65535U)) || i <= 4294967294U) || (i <= 2U && i <= 255U)) || i <= 11U) || (i <= 1U && (i == 0U || i == 1U))) || i <= 10U) || (0U == i && i == 0U)) || i <= 9U) || i <= 8U) [2024-01-29 22:58:59,157 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (1U <= counter) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:58:59,157 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] 1U <= counter [2024-01-29 22:58:59,158 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] ((1U <= counter) && ((unsigned long )_argptr == 0UL)) && (counter != 0U) [2024-01-29 22:58:59,158 INFO L98 nessWitnessExtractor]: Loop invariant at [L52-L59] (unsigned long )_argptr == 0UL [2024-01-29 22:58:59,158 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-29 22:58:59,158 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] ((unsigned long )_argptr == 0UL) && ((((((((((((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)) || (12U <= i && i <= 4294967294U)) [2024-01-29 22:58:59,158 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 22:58:59,158 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M - (long long )counter >= 0LL)) && (M == 0U)) && ((((((((((((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)) || (12U <= i && i <= 4294967294U)) [2024-01-29 22:58:59,159 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M - (long long )counter >= 0LL)) && (M == 0U) [2024-01-29 22:58:59,159 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M - (long long )counter >= 0LL)) && (M == 0U)) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:58:59,159 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M - (long long )counter >= 0LL) [2024-01-29 22:58:59,159 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (0LL - (long long )M) + (long long )counter >= 0LL [2024-01-29 22:58:59,159 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M + (long long )counter >= 0LL) [2024-01-29 22:58:59,159 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((0LL - (long long )M) + (long long )counter >= 0LL) && ((0LL - (long long )M) - (long long )counter >= 0LL) [2024-01-29 22:58:59,160 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M - (long long )counter >= 0LL)) && (M == 0U)) && (counter == 0U) [2024-01-29 22:58:59,160 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] ((unsigned long )_argptr == 0UL) && ((((((((((((i <= 7U || i <= 6U) || i <= 5U) || i <= 4U) || (i <= 3U && i <= 65535U)) || i <= 4294967294U) || (i <= 2U && i <= 255U)) || i <= 11U) || (i <= 1U && (i == 0U || i == 1U))) || i <= 10U) || (0U == i && i == 0U)) || i <= 9U) || i <= 8U) [2024-01-29 22:58:59,160 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 22:58:59,160 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-29 22:58:59,160 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L57] ((unsigned long )_argptr == 0UL) && ((((((((((((i <= 8U || i <= 7U) || i <= 6U) || i <= 5U) || i <= 4U) || (i <= 3U && i <= 65535U)) || i <= 4294967294U) || (i <= 2U && i <= 255U)) || i <= 11U) || (i <= 1U && (i == 0U || i == 1U))) || i <= 10U) || (0U == i && i == 0U)) || i <= 9U) [2024-01-29 22:58:59,160 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L57] (unsigned long )_argptr == 0UL [2024-01-29 22:58:59,161 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L45] ((unsigned long )_argptr == 0UL) && ((((((((((((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)) || 12U <= i) [2024-01-29 22:58:59,161 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L45] (unsigned long )_argptr == 0UL [2024-01-29 22:58:59,161 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] ((unsigned long )_argptr == 0UL) && ((((((((((((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)) || (12U <= i && i <= 4294967294U)) [2024-01-29 22:58:59,161 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 22:58:59,161 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] ((0LL - (long long )M) + (long long )counter >= 0LL) && ((0LL - (long long )M) - (long long )counter >= 0LL) [2024-01-29 22:58:59,161 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (0LL - (long long )M) + (long long )counter >= 0LL [2024-01-29 22:58:59,161 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (((0LL - (long long )M) + (long long )counter >= 0LL) && ((0LL - (long long )M) - (long long )counter >= 0LL)) && (M == 0U) [2024-01-29 22:58:59,162 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (((0LL - (long long )M) + (long long )counter >= 0LL) && ((0LL - (long long )M) - (long long )counter >= 0LL)) && ((long long )M - (long long )counter >= 0LL) [2024-01-29 22:58:59,162 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (((0LL - (long long )M) + (long long )counter >= 0LL) && ((0LL - (long long )M) - (long long )counter >= 0LL)) && (C == 0U) [2024-01-29 22:58:59,162 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] ((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M + (long long )counter >= 0LL) [2024-01-29 22:58:59,162 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (((0LL - (long long )M) + (long long )counter >= 0LL) && ((0LL - (long long )M) - (long long )counter >= 0LL)) && (counter == 0U) [2024-01-29 22:58:59,163 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M + (long long )counter >= 0LL)) && (counter == 0U) [2024-01-29 22:58:59,163 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] ((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M + (long long )counter >= 0LL) [2024-01-29 22:58:59,164 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (0LL - (long long )M) + (long long )counter >= 0LL [2024-01-29 22:58:59,164 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M + (long long )counter >= 0LL)) && (M == 0U) [2024-01-29 22:58:59,164 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M + (long long )counter >= 0LL)) && ((long long )M - (long long )counter >= 0LL) [2024-01-29 22:58:59,164 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (((0LL - (long long )M) + (long long )counter >= 0LL) && ((long long )M + (long long )counter >= 0LL)) && ((0LL - (long long )M) - (long long )counter >= 0LL) [2024-01-29 22:58:59,182 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:58:59,305 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c[2173,2186] [2024-01-29 22:58:59,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:58:59,314 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:58:59,422 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-nonblocking-counter-alt2.wvr.c[2173,2186] [2024-01-29 22:58:59,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:58:59,440 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:58:59,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59 WrapperNode [2024-01-29 22:58:59,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:58:59,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:58:59,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:58:59,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:58:59,449 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,465 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,492 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-01-29 22:58:59,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:58:59,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:58:59,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:58:59,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:58:59,502 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,505 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,517 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-29 22:58:59,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,538 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,547 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:58:59,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:58:59,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:58:59,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:58:59,551 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (1/1) ... [2024-01-29 22:58:59,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:58:59,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:58:59,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:58:59,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:58:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:58:59,618 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:58:59,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:58:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:58:59,619 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:58:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:58:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:58:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:58:59,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:58:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:58:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:58:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:58:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 22:58:59,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 22:58:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:58:59,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:58:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:58:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:58:59,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:58:59,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:58:59,623 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:58:59,716 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:58:59,718 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:59:00,060 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:59:00,060 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:59:00,280 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:59:00,280 INFO L320 CfgBuilder]: Removed 2 assume(true) statements. [2024-01-29 22:59:00,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:00 BoogieIcfgContainer [2024-01-29 22:59:00,282 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:59:00,284 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:59:00,284 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:59:00,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:59:00,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:58:57" (1/4) ... [2024-01-29 22:59:00,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e917d1c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:59:00, skipping insertion in model container [2024-01-29 22:59:00,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:58:59" (2/4) ... [2024-01-29 22:59:00,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e917d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:59:00, skipping insertion in model container [2024-01-29 22:59:00,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:58:59" (3/4) ... [2024-01-29 22:59:00,289 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e917d1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:59:00, skipping insertion in model container [2024-01-29 22:59:00,289 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:00" (4/4) ... [2024-01-29 22:59:00,290 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-nonblocking-counter-alt2.wvr.c [2024-01-29 22:59:00,304 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:59:00,304 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2024-01-29 22:59:00,304 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:59:00,409 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-29 22:59:00,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 97 transitions, 208 flow [2024-01-29 22:59:00,486 INFO L124 PetriNetUnfolderBase]: 2/95 cut-off events. [2024-01-29 22:59:00,487 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:59:00,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 95 events. 2/95 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 257 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2024-01-29 22:59:00,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 97 transitions, 208 flow [2024-01-29 22:59:00,493 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 99 places, 94 transitions, 200 flow [2024-01-29 22:59:00,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:59:00,505 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;@3814915e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:59:00,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2024-01-29 22:59:00,507 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:59:00,507 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:59:00,507 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:59:00,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:00,507 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:59:00,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 22:59:00,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:00,511 INFO L85 PathProgramCache]: Analyzing trace with hash 13949, now seen corresponding path program 1 times [2024-01-29 22:59:00,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:00,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157323387] [2024-01-29 22:59:00,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:00,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:00,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:00,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:00,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157323387] [2024-01-29 22:59:00,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157323387] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:00,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:00,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:59:00,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44176915] [2024-01-29 22:59:00,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:00,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:00,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:00,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:00,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:00,879 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 97 [2024-01-29 22:59:00,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:00,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:00,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 97 [2024-01-29 22:59:00,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:01,084 INFO L124 PetriNetUnfolderBase]: 280/658 cut-off events. [2024-01-29 22:59:01,084 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-01-29 22:59:01,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 658 events. 280/658 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4182 event pairs, 237 based on Foata normal form. 10/413 useless extension candidates. Maximal degree in co-relation 1061. Up to 475 conditions per place. [2024-01-29 22:59:01,093 INFO L140 encePairwiseOnDemand]: 69/97 looper letters, 29 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2024-01-29 22:59:01,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 68 transitions, 210 flow [2024-01-29 22:59:01,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:01,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:01,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 174 transitions. [2024-01-29 22:59:01,103 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5979381443298969 [2024-01-29 22:59:01,105 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 200 flow. Second operand 3 states and 174 transitions. [2024-01-29 22:59:01,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 68 transitions, 210 flow [2024-01-29 22:59:01,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 68 transitions, 202 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 22:59:01,113 INFO L231 Difference]: Finished difference. Result has 71 places, 68 transitions, 144 flow [2024-01-29 22:59:01,114 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=71, PETRI_TRANSITIONS=68} [2024-01-29 22:59:01,117 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -28 predicate places. [2024-01-29 22:59:01,117 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 68 transitions, 144 flow [2024-01-29 22:59:01,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:01,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:01,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 22:59:01,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:59:01,124 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 22:59:01,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:01,125 INFO L85 PathProgramCache]: Analyzing trace with hash 13420239, now seen corresponding path program 1 times [2024-01-29 22:59:01,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:01,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804600881] [2024-01-29 22:59:01,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:01,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:01,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:01,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:01,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:01,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804600881] [2024-01-29 22:59:01,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804600881] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:01,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:01,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:01,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532493563] [2024-01-29 22:59:01,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:01,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:01,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:01,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:01,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:01,275 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 97 [2024-01-29 22:59:01,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 68 transitions, 144 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:01,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:01,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 97 [2024-01-29 22:59:01,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:01,427 INFO L124 PetriNetUnfolderBase]: 280/657 cut-off events. [2024-01-29 22:59:01,427 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:59:01,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1154 conditions, 657 events. 280/657 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4227 event pairs, 237 based on Foata normal form. 0/403 useless extension candidates. Maximal degree in co-relation 1127. Up to 477 conditions per place. [2024-01-29 22:59:01,430 INFO L140 encePairwiseOnDemand]: 94/97 looper letters, 34 selfloop transitions, 2 changer transitions 0/67 dead transitions. [2024-01-29 22:59:01,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 67 transitions, 214 flow [2024-01-29 22:59:01,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:01,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:01,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-01-29 22:59:01,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46735395189003437 [2024-01-29 22:59:01,435 INFO L175 Difference]: Start difference. First operand has 71 places, 68 transitions, 144 flow. Second operand 3 states and 136 transitions. [2024-01-29 22:59:01,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 67 transitions, 214 flow [2024-01-29 22:59:01,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 67 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:01,437 INFO L231 Difference]: Finished difference. Result has 70 places, 67 transitions, 142 flow [2024-01-29 22:59:01,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=70, PETRI_TRANSITIONS=67} [2024-01-29 22:59:01,438 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -29 predicate places. [2024-01-29 22:59:01,438 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 67 transitions, 142 flow [2024-01-29 22:59:01,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:01,438 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:01,438 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:01,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:59:01,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 22:59:01,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:01,440 INFO L85 PathProgramCache]: Analyzing trace with hash 440542379, now seen corresponding path program 1 times [2024-01-29 22:59:01,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:01,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792428426] [2024-01-29 22:59:01,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:01,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:01,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:01,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:01,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792428426] [2024-01-29 22:59:01,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792428426] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:01,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:01,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:01,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450773063] [2024-01-29 22:59:01,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:01,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:01,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:01,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:01,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:01,539 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2024-01-29 22:59:01,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 67 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:01,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:01,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2024-01-29 22:59:01,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:01,658 INFO L124 PetriNetUnfolderBase]: 315/791 cut-off events. [2024-01-29 22:59:01,659 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:59:01,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 791 events. 315/791 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 5428 event pairs, 144 based on Foata normal form. 1/524 useless extension candidates. Maximal degree in co-relation 1332. Up to 313 conditions per place. [2024-01-29 22:59:01,663 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 45 selfloop transitions, 4 changer transitions 1/83 dead transitions. [2024-01-29 22:59:01,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 83 transitions, 277 flow [2024-01-29 22:59:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:01,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-01-29 22:59:01,665 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6769759450171822 [2024-01-29 22:59:01,665 INFO L175 Difference]: Start difference. First operand has 70 places, 67 transitions, 142 flow. Second operand 3 states and 197 transitions. [2024-01-29 22:59:01,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 83 transitions, 277 flow [2024-01-29 22:59:01,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 83 transitions, 273 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:01,668 INFO L231 Difference]: Finished difference. Result has 70 places, 68 transitions, 164 flow [2024-01-29 22:59:01,669 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=70, PETRI_TRANSITIONS=68} [2024-01-29 22:59:01,670 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -29 predicate places. [2024-01-29 22:59:01,670 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 68 transitions, 164 flow [2024-01-29 22:59:01,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:01,671 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:01,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:01,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:59:01,671 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 22:59:01,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:01,672 INFO L85 PathProgramCache]: Analyzing trace with hash 786547845, now seen corresponding path program 1 times [2024-01-29 22:59:01,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:01,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609041096] [2024-01-29 22:59:01,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:01,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:01,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:01,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:01,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609041096] [2024-01-29 22:59:01,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609041096] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:01,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:01,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:59:01,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056450863] [2024-01-29 22:59:01,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:01,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:01,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:01,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:01,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:01,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 97 [2024-01-29 22:59:01,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 68 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:01,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:01,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 97 [2024-01-29 22:59:01,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:02,032 INFO L124 PetriNetUnfolderBase]: 567/1146 cut-off events. [2024-01-29 22:59:02,033 INFO L125 PetriNetUnfolderBase]: For 132/132 co-relation queries the response was YES. [2024-01-29 22:59:02,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 1146 events. 567/1146 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 7051 event pairs, 315 based on Foata normal form. 72/870 useless extension candidates. Maximal degree in co-relation 922. Up to 784 conditions per place. [2024-01-29 22:59:02,047 INFO L140 encePairwiseOnDemand]: 87/97 looper letters, 41 selfloop transitions, 4 changer transitions 0/76 dead transitions. [2024-01-29 22:59:02,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 76 transitions, 267 flow [2024-01-29 22:59:02,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:02,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 243 transitions. [2024-01-29 22:59:02,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6262886597938144 [2024-01-29 22:59:02,049 INFO L175 Difference]: Start difference. First operand has 70 places, 68 transitions, 164 flow. Second operand 4 states and 243 transitions. [2024-01-29 22:59:02,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 76 transitions, 267 flow [2024-01-29 22:59:02,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 76 transitions, 259 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:02,051 INFO L231 Difference]: Finished difference. Result has 70 places, 66 transitions, 167 flow [2024-01-29 22:59:02,051 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=167, PETRI_PLACES=70, PETRI_TRANSITIONS=66} [2024-01-29 22:59:02,052 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -29 predicate places. [2024-01-29 22:59:02,052 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 66 transitions, 167 flow [2024-01-29 22:59:02,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:02,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:02,052 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] [2024-01-29 22:59:02,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:59:02,053 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 22:59:02,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:02,053 INFO L85 PathProgramCache]: Analyzing trace with hash -44406471, now seen corresponding path program 1 times [2024-01-29 22:59:02,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:02,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78815013] [2024-01-29 22:59:02,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:02,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:02,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:02,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:02,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78815013] [2024-01-29 22:59:02,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78815013] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:02,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:02,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:59:02,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997248114] [2024-01-29 22:59:02,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:02,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:02,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:02,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:02,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:02,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 97 [2024-01-29 22:59:02,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 66 transitions, 167 flow. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:02,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:02,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 97 [2024-01-29 22:59:02,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:02,267 INFO L124 PetriNetUnfolderBase]: 328/766 cut-off events. [2024-01-29 22:59:02,267 INFO L125 PetriNetUnfolderBase]: For 149/164 co-relation queries the response was YES. [2024-01-29 22:59:02,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1510 conditions, 766 events. 328/766 cut-off events. For 149/164 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4733 event pairs, 12 based on Foata normal form. 90/738 useless extension candidates. Maximal degree in co-relation 738. Up to 441 conditions per place. [2024-01-29 22:59:02,271 INFO L140 encePairwiseOnDemand]: 89/97 looper letters, 53 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2024-01-29 22:59:02,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 85 transitions, 358 flow [2024-01-29 22:59:02,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:02,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:02,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 248 transitions. [2024-01-29 22:59:02,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6391752577319587 [2024-01-29 22:59:02,272 INFO L175 Difference]: Start difference. First operand has 70 places, 66 transitions, 167 flow. Second operand 4 states and 248 transitions. [2024-01-29 22:59:02,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 85 transitions, 358 flow [2024-01-29 22:59:02,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 85 transitions, 347 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:02,274 INFO L231 Difference]: Finished difference. Result has 65 places, 60 transitions, 154 flow [2024-01-29 22:59:02,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=65, PETRI_TRANSITIONS=60} [2024-01-29 22:59:02,274 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -34 predicate places. [2024-01-29 22:59:02,275 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 60 transitions, 154 flow [2024-01-29 22:59:02,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:02,275 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:02,275 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] [2024-01-29 22:59:02,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:59:02,275 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 22:59:02,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:02,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1294222992, now seen corresponding path program 1 times [2024-01-29 22:59:02,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:02,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170511733] [2024-01-29 22:59:02,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:02,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:02,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:02,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170511733] [2024-01-29 22:59:02,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170511733] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:02,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:02,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:02,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126177586] [2024-01-29 22:59:02,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:02,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:02,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:02,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:02,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:02,316 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 97 [2024-01-29 22:59:02,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:02,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:02,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 97 [2024-01-29 22:59:02,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:02,435 INFO L124 PetriNetUnfolderBase]: 383/761 cut-off events. [2024-01-29 22:59:02,435 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2024-01-29 22:59:02,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1630 conditions, 761 events. 383/761 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 4273 event pairs, 23 based on Foata normal form. 14/704 useless extension candidates. Maximal degree in co-relation 1298. Up to 637 conditions per place. [2024-01-29 22:59:02,438 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 41 selfloop transitions, 1 changer transitions 0/63 dead transitions. [2024-01-29 22:59:02,439 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 63 transitions, 243 flow [2024-01-29 22:59:02,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:02,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2024-01-29 22:59:02,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5945017182130584 [2024-01-29 22:59:02,440 INFO L175 Difference]: Start difference. First operand has 65 places, 60 transitions, 154 flow. Second operand 3 states and 173 transitions. [2024-01-29 22:59:02,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 63 transitions, 243 flow [2024-01-29 22:59:02,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 63 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:02,442 INFO L231 Difference]: Finished difference. Result has 60 places, 55 transitions, 139 flow [2024-01-29 22:59:02,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=139, PETRI_PLACES=60, PETRI_TRANSITIONS=55} [2024-01-29 22:59:02,444 INFO L281 CegarLoopForPetriNet]: 99 programPoint places, -39 predicate places. [2024-01-29 22:59:02,445 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 55 transitions, 139 flow [2024-01-29 22:59:02,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:02,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:02,445 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] [2024-01-29 22:59:02,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:59:02,446 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-29 22:59:02,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:02,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1792204977, now seen corresponding path program 1 times [2024-01-29 22:59:02,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:02,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122038904] [2024-01-29 22:59:02,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:02,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:59:02,462 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:59:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:59:02,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:59:02,496 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:59:02,497 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 82 remaining) [2024-01-29 22:59:02,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 82 remaining) [2024-01-29 22:59:02,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 82 remaining) [2024-01-29 22:59:02,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 82 remaining) [2024-01-29 22:59:02,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 82 remaining) [2024-01-29 22:59:02,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 82 remaining) [2024-01-29 22:59:02,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 82 remaining) [2024-01-29 22:59:02,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 82 remaining) [2024-01-29 22:59:02,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 82 remaining) [2024-01-29 22:59:02,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 82 remaining) [2024-01-29 22:59:02,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 82 remaining) [2024-01-29 22:59:02,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 82 remaining) [2024-01-29 22:59:02,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 82 remaining) [2024-01-29 22:59:02,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 82 remaining) [2024-01-29 22:59:02,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 82 remaining) [2024-01-29 22:59:02,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 82 remaining) [2024-01-29 22:59:02,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 82 remaining) [2024-01-29 22:59:02,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 82 remaining) [2024-01-29 22:59:02,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 82 remaining) [2024-01-29 22:59:02,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 82 remaining) [2024-01-29 22:59:02,503 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 82 remaining) [2024-01-29 22:59:02,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 82 remaining) [2024-01-29 22:59:02,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 82 remaining) [2024-01-29 22:59:02,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 82 remaining) [2024-01-29 22:59:02,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 82 remaining) [2024-01-29 22:59:02,504 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 82 remaining) [2024-01-29 22:59:02,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 82 remaining) [2024-01-29 22:59:02,505 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 82 remaining) [2024-01-29 22:59:02,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 82 remaining) [2024-01-29 22:59:02,506 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 82 remaining) [2024-01-29 22:59:02,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 82 remaining) [2024-01-29 22:59:02,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 82 remaining) [2024-01-29 22:59:02,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 82 remaining) [2024-01-29 22:59:02,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 82 remaining) [2024-01-29 22:59:02,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 82 remaining) [2024-01-29 22:59:02,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 82 remaining) [2024-01-29 22:59:02,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 82 remaining) [2024-01-29 22:59:02,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 82 remaining) [2024-01-29 22:59:02,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 82 remaining) [2024-01-29 22:59:02,508 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 82 remaining) [2024-01-29 22:59:02,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 82 remaining) [2024-01-29 22:59:02,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 82 remaining) [2024-01-29 22:59:02,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 82 remaining) [2024-01-29 22:59:02,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 82 remaining) [2024-01-29 22:59:02,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 82 remaining) [2024-01-29 22:59:02,509 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 82 remaining) [2024-01-29 22:59:02,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 82 remaining) [2024-01-29 22:59:02,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 82 remaining) [2024-01-29 22:59:02,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (33 of 82 remaining) [2024-01-29 22:59:02,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 82 remaining) [2024-01-29 22:59:02,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 82 remaining) [2024-01-29 22:59:02,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 82 remaining) [2024-01-29 22:59:02,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 82 remaining) [2024-01-29 22:59:02,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 82 remaining) [2024-01-29 22:59:02,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 82 remaining) [2024-01-29 22:59:02,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 82 remaining) [2024-01-29 22:59:02,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 82 remaining) [2024-01-29 22:59:02,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 82 remaining) [2024-01-29 22:59:02,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 82 remaining) [2024-01-29 22:59:02,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 82 remaining) [2024-01-29 22:59:02,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 82 remaining) [2024-01-29 22:59:02,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 82 remaining) [2024-01-29 22:59:02,513 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 82 remaining) [2024-01-29 22:59:02,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 82 remaining) [2024-01-29 22:59:02,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 82 remaining) [2024-01-29 22:59:02,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 82 remaining) [2024-01-29 22:59:02,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 82 remaining) [2024-01-29 22:59:02,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 82 remaining) [2024-01-29 22:59:02,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 82 remaining) [2024-01-29 22:59:02,514 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 82 remaining) [2024-01-29 22:59:02,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err14ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 82 remaining) [2024-01-29 22:59:02,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 82 remaining) [2024-01-29 22:59:02,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 82 remaining) [2024-01-29 22:59:02,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 82 remaining) [2024-01-29 22:59:02,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 82 remaining) [2024-01-29 22:59:02,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 82 remaining) [2024-01-29 22:59:02,515 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 82 remaining) [2024-01-29 22:59:02,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 82 remaining) [2024-01-29 22:59:02,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 82 remaining) [2024-01-29 22:59:02,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 82 remaining) [2024-01-29 22:59:02,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 82 remaining) [2024-01-29 22:59:02,516 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 82 remaining) [2024-01-29 22:59:02,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:59:02,517 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:02,521 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:59:02,522 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:59:02,547 INFO L503 ceAbstractionStarter]: Automizer considered 47 witness invariants [2024-01-29 22:59:02,548 INFO L504 ceAbstractionStarter]: WitnessConsidered=47 [2024-01-29 22:59:02,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:59:02 BasicIcfg [2024-01-29 22:59:02,548 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:59:02,549 INFO L158 Benchmark]: Toolchain (without parser) took 3434.96ms. Allocated memory was 153.1MB in the beginning and 247.5MB in the end (delta: 94.4MB). Free memory was 113.3MB in the beginning and 164.5MB in the end (delta: -51.1MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2024-01-29 22:59:02,549 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 115.3MB. Free memory was 75.7MB in the beginning and 75.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:59:02,549 INFO L158 Benchmark]: CDTParser took 0.64ms. Allocated memory is still 115.3MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:59:02,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.14ms. Allocated memory is still 153.1MB. Free memory was 113.3MB in the beginning and 93.8MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-01-29 22:59:02,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.57ms. Allocated memory is still 153.1MB. Free memory was 93.8MB in the beginning and 91.3MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-29 22:59:02,550 INFO L158 Benchmark]: Boogie Preprocessor took 57.01ms. Allocated memory is still 153.1MB. Free memory was 91.3MB in the beginning and 88.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:59:02,550 INFO L158 Benchmark]: RCFGBuilder took 731.39ms. Allocated memory is still 153.1MB. Free memory was 88.5MB in the beginning and 70.4MB in the end (delta: 18.1MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2024-01-29 22:59:02,550 INFO L158 Benchmark]: TraceAbstraction took 2264.52ms. Allocated memory was 153.1MB in the beginning and 247.5MB in the end (delta: 94.4MB). Free memory was 69.8MB in the beginning and 164.5MB in the end (delta: -94.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:59:02,551 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 115.3MB. Free memory was 75.7MB in the beginning and 75.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.64ms. Allocated memory is still 115.3MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.14ms. Allocated memory is still 153.1MB. Free memory was 113.3MB in the beginning and 93.8MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.57ms. Allocated memory is still 153.1MB. Free memory was 93.8MB in the beginning and 91.3MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.01ms. Allocated memory is still 153.1MB. Free memory was 91.3MB in the beginning and 88.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 731.39ms. Allocated memory is still 153.1MB. Free memory was 88.5MB in the beginning and 70.4MB in the end (delta: 18.1MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2264.52ms. Allocated memory was 153.1MB in the beginning and 247.5MB in the end (delta: 94.4MB). Free memory was 69.8MB in the beginning and 164.5MB in the end (delta: -94.7MB). There was no memory consumed. 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 M, counter, C; [L65] 0 pthread_t t1, t2; VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[C],IntegerLiteral[0U]]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[M],IntegerLiteral[0U]]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [C=0, M=0, counter=0, t1={5:0}, t2={3:0}] [L67] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]]] [L67] 0 C = __VERIFIER_nondet_uint() [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]]] VAL [M=0, counter=0, t1={5:0}, t2={3:0}] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]]] VAL [M=0, counter=0, t1={5:0}, t2={3:0}] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[M],IntegerLiteral[0U]]]]] VAL [M=0, counter=0, t1={5:0}, t2={3:0}] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]] VAL [M=0, counter=0, t1={5:0}, t2={3:0}] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]]]] VAL [M=0, counter=0, t1={5:0}, t2={3:0}] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[M]]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]],BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[M]],CastExpression[ACSLType[long long],IdentifierExpression[counter]]],IntegerLiteral[0LL]]],BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]]] [L68] 0 M = __VERIFIER_nondet_uint() [L69] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] [L69] CALL 0 assume_abort_if_not(M > 0) [L35] COND FALSE 0 !(!cond) [L69] RET 0 assume_abort_if_not(M > 0) [L72] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[counter],IntegerLiteral[0U]]]] [L72] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [M=1, _argptr={0:0}, counter=0, t1={5:0}, t2={3:0}] [L41] 1 unsigned int i=0; VAL [M=1, _argptr={0:0}, _argptr={0:0}, counter=0, i=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]],BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[LOGICOR,BinaryExpression[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]]]],BinaryExpression[COMPLEQ,IntegerLiteral[12U],IdentifierExpression[i]]]]]] VAL [M=1, _argptr={0:0}, _argptr={0:0}, counter=0, i=0] [L41] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [M=1, _argptr={0:0}, _argptr={0:0}, counter=0, i=0] [L41] COND TRUE 1 i