./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-mult-4.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-mult-4.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-ab2e0ac-m [2024-01-29 14:20:02,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:20:02,334 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:20:02,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:20:02,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:20:02,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:20:02,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:20:02,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:20:02,362 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:20:02,365 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:20:02,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:20:02,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:20:02,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:20:02,368 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:20:02,368 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:20:02,368 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:20:02,368 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:20:02,369 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:20:02,369 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:20:02,369 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:20:02,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:20:02,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:20:02,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:20:02,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:20:02,371 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:20:02,371 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:20:02,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:20:02,372 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:20:02,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:20:02,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:20:02,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:20:02,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:20:02,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:20:02,374 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:20:02,374 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:20:02,374 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:20:02,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:20:02,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:20:02,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:20:02,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:20:02,375 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:20:02,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:20:02,375 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:20:02,375 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:20:02,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:20:02,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:20:02,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:20:02,608 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:20:02,609 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:20:02,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/popl20-mult-4.wvr.yml/witness.yml [2024-01-29 14:20:02,751 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:20:02,751 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:20:02,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2024-01-29 14:20:03,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:20:03,935 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:20:03,936 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c [2024-01-29 14:20:03,946 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/081695f62/2637852990c04e6294770392ad355930/FLAG5346c47e2 [2024-01-29 14:20:03,959 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/081695f62/2637852990c04e6294770392ad355930 [2024-01-29 14:20:03,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:20:03,960 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:20:03,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:20:03,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:20:03,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:20:03,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:20:02" (1/2) ... [2024-01-29 14:20:03,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27059156 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:03, skipping insertion in model container [2024-01-29 14:20:03,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:20:02" (1/2) ... [2024-01-29 14:20:03,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@42a9d7f2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:03, skipping insertion in model container [2024-01-29 14:20:03,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:20:03" (2/2) ... [2024-01-29 14:20:03,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27059156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:03, skipping insertion in model container [2024-01-29 14:20:03,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:20:03" (2/2) ... [2024-01-29 14:20:03,970 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:20:03,999 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:20:04,000 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,000 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] ((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-01-29 14:20:04,001 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,001 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U) [2024-01-29 14:20:04,001 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,001 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,002 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] ((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-01-29 14:20:04,002 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,002 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (((((((((i == 8U || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) || i == 9U [2024-01-29 14:20:04,002 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (((((((((i == 8U || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) || i == 9U [2024-01-29 14:20:04,002 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,002 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (0LL - (long long )c) + (long long )counter >= 0LL [2024-01-29 14:20:04,002 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (long long )c - (long long )counter >= 0LL [2024-01-29 14:20:04,003 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (long long )c + (long long )counter >= 0LL [2024-01-29 14:20:04,003 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (0LL - (long long )c) - (long long )counter >= 0LL [2024-01-29 14:20:04,003 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,003 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] c == 0U [2024-01-29 14:20:04,003 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-01-29 14:20:04,003 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] counter == 0U [2024-01-29 14:20:04,003 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,003 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (((((((((i == 8U || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) || i == 9U [2024-01-29 14:20:04,004 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] counter == 0U [2024-01-29 14:20:04,004 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] counter == 0U [2024-01-29 14:20:04,004 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U) [2024-01-29 14:20:04,004 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,004 INFO L98 nessWitnessExtractor]: Loop invariant at [L51-L56] (((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || 10U <= i [2024-01-29 14:20:04,004 INFO L98 nessWitnessExtractor]: Loop invariant at [L51-L56] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,005 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (((((((((i == 8U || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U)) || i == 9U [2024-01-29 14:20:04,005 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,005 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,005 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,005 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] ((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-01-29 14:20:04,005 INFO L98 nessWitnessExtractor]: Loop invariant at [L72-L77] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,005 INFO L98 nessWitnessExtractor]: Loop invariant at [L72-L77] (((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || 10U <= i [2024-01-29 14:20:04,005 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,006 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] ((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-01-29 14:20:04,006 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] counter == 0U [2024-01-29 14:20:04,006 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] c == 0U [2024-01-29 14:20:04,007 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (0LL - (long long )c) + (long long )counter >= 0LL [2024-01-29 14:20:04,007 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (long long )c - (long long )counter >= 0LL [2024-01-29 14:20:04,007 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] N == 0U [2024-01-29 14:20:04,007 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (0LL - (long long )c) - (long long )counter >= 0LL [2024-01-29 14:20:04,008 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (long long )c + (long long )counter >= 0LL [2024-01-29 14:20:04,008 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,008 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] ((((((((((((12U <= i && i <= 4294967294U) || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-01-29 14:20:04,008 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U) [2024-01-29 14:20:04,008 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,008 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (0LL - (long long )c) + (long long )counter >= 0LL [2024-01-29 14:20:04,008 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (long long )c - (long long )counter >= 0LL [2024-01-29 14:20:04,009 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] c == 0U [2024-01-29 14:20:04,009 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (0LL - (long long )c) - (long long )counter >= 0LL [2024-01-29 14:20:04,009 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (long long )c + (long long )counter >= 0LL [2024-01-29 14:20:04,009 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] counter == 0U [2024-01-29 14:20:04,009 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,009 INFO L98 nessWitnessExtractor]: Loop invariant at [L62-L66] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,010 INFO L98 nessWitnessExtractor]: Loop invariant at [L62-L66] (((((((((((12U <= i || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-01-29 14:20:04,010 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,011 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L45] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,011 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L45] (((((((((((12U <= i || i == 11U) || i == 10U) || i == 9U) || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U) [2024-01-29 14:20:04,011 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (((((((((i == 9U || i == 8U) || i == 7U) || i == 6U) || i == 5U) || i == 4U) || i == 3U) || i == 2U) || i == 1U) || (0U == i && i == 0U)) || (10U <= i && i <= 4294967294U) [2024-01-29 14:20:04,011 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-29 14:20:04,030 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:20:04,194 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c[2664,2677] [2024-01-29 14:20:04,202 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:20:04,210 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:20:04,338 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-mult-4.wvr.c[2664,2677] [2024-01-29 14:20:04,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:20:04,349 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:20:04,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04 WrapperNode [2024-01-29 14:20:04,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:20:04,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:20:04,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:20:04,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:20:04,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,406 INFO L138 Inliner]: procedures = 23, calls = 42, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 163 [2024-01-29 14:20:04,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:20:04,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:20:04,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:20:04,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:20:04,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,450 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-01-29 14:20:04,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,466 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,473 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:20:04,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:20:04,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:20:04,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:20:04,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (1/1) ... [2024-01-29 14:20:04,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:20:04,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:20:04,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 14:20:04,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 14:20:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:20:04,539 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:20:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:20:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:20:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:20:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 14:20:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 14:20:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-29 14:20:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-29 14:20:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:20:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:20:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:20:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:20:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 14:20:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:20:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:20:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:20:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:20:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:20:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 14:20:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 14:20:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 14:20:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:20:04,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:20:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:20:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:20:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:20:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:20:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 14:20:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:20:04,545 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:20:04,646 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:20:04,648 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:20:05,138 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:20:05,138 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:20:05,351 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:20:05,351 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-29 14:20:05,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:20:05 BoogieIcfgContainer [2024-01-29 14:20:05,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:20:05,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:20:05,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:20:05,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:20:05,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:20:02" (1/4) ... [2024-01-29 14:20:05,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1997818f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:20:05, skipping insertion in model container [2024-01-29 14:20:05,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:20:03" (2/4) ... [2024-01-29 14:20:05,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1997818f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:20:05, skipping insertion in model container [2024-01-29 14:20:05,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:04" (3/4) ... [2024-01-29 14:20:05,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1997818f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:20:05, skipping insertion in model container [2024-01-29 14:20:05,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:20:05" (4/4) ... [2024-01-29 14:20:05,358 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-mult-4.wvr.c [2024-01-29 14:20:05,371 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:20:05,371 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2024-01-29 14:20:05,372 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:20:05,460 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-29 14:20:05,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 155 transitions, 338 flow [2024-01-29 14:20:05,546 INFO L124 PetriNetUnfolderBase]: 4/151 cut-off events. [2024-01-29 14:20:05,547 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 14:20:05,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 151 events. 4/151 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 554 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2024-01-29 14:20:05,552 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 155 transitions, 338 flow [2024-01-29 14:20:05,558 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 150 transitions, 324 flow [2024-01-29 14:20:05,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:20:05,575 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;@41d3da02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:20:05,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2024-01-29 14:20:05,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:20:05,577 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:20:05,577 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:20:05,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:20:05,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:20:05,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 125 more)] === [2024-01-29 14:20:05,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:20:05,585 INFO L85 PathProgramCache]: Analyzing trace with hash 21111, now seen corresponding path program 1 times [2024-01-29 14:20:05,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:20:05,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799311170] [2024-01-29 14:20:05,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:20:05,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:20:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:20:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:20:05,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:20:05,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799311170] [2024-01-29 14:20:05,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799311170] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:20:05,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:20:05,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:20:05,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232166984] [2024-01-29 14:20:05,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:20:05,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-01-29 14:20:05,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:20:05,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-01-29 14:20:05,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-01-29 14:20:05,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 155 [2024-01-29 14:20:05,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 150 transitions, 324 flow. Second operand has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:20:05,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:20:05,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 155 [2024-01-29 14:20:05,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:20:14,339 INFO L124 PetriNetUnfolderBase]: 60563/110241 cut-off events. [2024-01-29 14:20:14,339 INFO L125 PetriNetUnfolderBase]: For 1934/1934 co-relation queries the response was YES. [2024-01-29 14:20:14,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184918 conditions, 110241 events. 60563/110241 cut-off events. For 1934/1934 co-relation queries the response was YES. Maximal size of possible extension queue 6180. Compared 1231043 event pairs, 37597 based on Foata normal form. 11329/77172 useless extension candidates. Maximal degree in co-relation 171728. Up to 72625 conditions per place. [2024-01-29 14:20:15,381 INFO L140 encePairwiseOnDemand]: 129/155 looper letters, 51 selfloop transitions, 0 changer transitions 0/124 dead transitions. [2024-01-29 14:20:15,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 124 transitions, 374 flow [2024-01-29 14:20:15,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-01-29 14:20:15,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-01-29 14:20:15,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 231 transitions. [2024-01-29 14:20:15,394 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7451612903225806 [2024-01-29 14:20:15,395 INFO L175 Difference]: Start difference. First operand has 159 places, 150 transitions, 324 flow. Second operand 2 states and 231 transitions. [2024-01-29 14:20:15,396 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 124 transitions, 374 flow [2024-01-29 14:20:15,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 124 transitions, 358 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-29 14:20:15,520 INFO L231 Difference]: Finished difference. Result has 126 places, 124 transitions, 256 flow [2024-01-29 14:20:15,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=126, PETRI_TRANSITIONS=124} [2024-01-29 14:20:15,524 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -33 predicate places. [2024-01-29 14:20:15,524 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 124 transitions, 256 flow [2024-01-29 14:20:15,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:20:15,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:20:15,524 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:20:15,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:20:15,525 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 125 more)] === [2024-01-29 14:20:15,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:20:15,525 INFO L85 PathProgramCache]: Analyzing trace with hash 655104, now seen corresponding path program 1 times [2024-01-29 14:20:15,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:20:15,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260444734] [2024-01-29 14:20:15,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:20:15,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:20:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:20:15,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:20:15,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:20:15,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260444734] [2024-01-29 14:20:15,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260444734] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:20:15,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:20:15,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:20:15,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829922608] [2024-01-29 14:20:15,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:20:15,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:20:15,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:20:15,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:20:15,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:20:15,706 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 155 [2024-01-29 14:20:15,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 124 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:20:15,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:20:15,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 155 [2024-01-29 14:20:15,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:20:22,582 INFO L124 PetriNetUnfolderBase]: 60563/110231 cut-off events. [2024-01-29 14:20:22,582 INFO L125 PetriNetUnfolderBase]: For 478/478 co-relation queries the response was YES. [2024-01-29 14:20:22,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 183591 conditions, 110231 events. 60563/110231 cut-off events. For 478/478 co-relation queries the response was YES. Maximal size of possible extension queue 6180. Compared 1231146 event pairs, 37597 based on Foata normal form. 8/65847 useless extension candidates. Maximal degree in co-relation 183588. Up to 72625 conditions per place. [2024-01-29 14:20:23,614 INFO L140 encePairwiseOnDemand]: 143/155 looper letters, 51 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-01-29 14:20:23,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 114 transitions, 342 flow [2024-01-29 14:20:23,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:20:23,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:20:23,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 258 transitions. [2024-01-29 14:20:23,616 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5548387096774193 [2024-01-29 14:20:23,616 INFO L175 Difference]: Start difference. First operand has 126 places, 124 transitions, 256 flow. Second operand 3 states and 258 transitions. [2024-01-29 14:20:23,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 114 transitions, 342 flow [2024-01-29 14:20:23,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 114 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 14:20:23,619 INFO L231 Difference]: Finished difference. Result has 118 places, 114 transitions, 240 flow [2024-01-29 14:20:23,620 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=118, PETRI_TRANSITIONS=114} [2024-01-29 14:20:23,620 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -41 predicate places. [2024-01-29 14:20:23,621 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 114 transitions, 240 flow [2024-01-29 14:20:23,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:20:23,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:20:23,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 14:20:23,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:20:23,622 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 125 more)] === [2024-01-29 14:20:23,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:20:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash 20308902, now seen corresponding path program 1 times [2024-01-29 14:20:23,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:20:23,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728491395] [2024-01-29 14:20:23,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:20:23,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:20:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:20:23,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:20:23,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:20:23,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728491395] [2024-01-29 14:20:23,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728491395] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:20:23,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:20:23,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:20:23,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238851831] [2024-01-29 14:20:23,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:20:23,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:20:23,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:20:23,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:20:23,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:20:23,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 155 [2024-01-29 14:20:23,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 114 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:20:23,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:20:23,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 155 [2024-01-29 14:20:23,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand