./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.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/parallel-misc-3-extended.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/parallel-misc-3-extended.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-misc-3-extended.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-ab2e0ac-m [2024-01-29 14:18:38,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:18:38,281 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:18:38,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:18:38,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:18:38,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:18:38,302 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:18:38,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:18:38,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:18:38,303 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:18:38,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:18:38,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:18:38,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:18:38,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:18:38,305 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:18:38,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:18:38,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:18:38,306 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:18:38,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:18:38,306 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:18:38,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:18:38,306 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:18:38,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:18:38,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:18:38,307 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:18:38,307 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:18:38,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:18:38,308 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:18:38,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:18:38,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:18:38,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:18:38,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:18:38,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:18:38,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:18:38,309 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:18:38,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:18:38,310 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:18:38,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:18:38,310 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:18:38,310 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:18:38,311 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:18:38,311 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:18:38,311 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:18:38,311 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:18:38,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:18:38,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:18:38,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:18:38,529 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:18:38,529 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:18:38,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2024-01-29 14:18:39,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:18:39,700 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:18:39,701 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-3-extended.wvr.c [2024-01-29 14:18:39,707 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b612f92a6/a4f5f83fa3c64c719e1d48619279b38c/FLAGb947edc20 [2024-01-29 14:18:39,716 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b612f92a6/a4f5f83fa3c64c719e1d48619279b38c [2024-01-29 14:18:39,718 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:18:39,719 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:18:39,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-misc-3-extended.wvr.yml/witness.yml [2024-01-29 14:18:39,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:18:39,818 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:18:39,819 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:18:39,819 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:18:39,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:18:39,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:18:39" (1/2) ... [2024-01-29 14:18:39,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d703206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:39, skipping insertion in model container [2024-01-29 14:18:39,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:18:39" (1/2) ... [2024-01-29 14:18:39,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1ff11239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:18:39, skipping insertion in model container [2024-01-29 14:18:39,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:39" (2/2) ... [2024-01-29 14:18:39,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d703206 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:39, skipping insertion in model container [2024-01-29 14:18:39,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:39" (2/2) ... [2024-01-29 14:18:39,838 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:18:39,874 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:18:39,875 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,875 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,875 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,875 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L78] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,875 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L56] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,875 INFO L98 nessWitnessExtractor]: Loop invariant at [L86-L102] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,876 INFO L98 nessWitnessExtractor]: Location invariant before [L112-L112] g1 == (_Bool)0 [2024-01-29 14:18:39,876 INFO L98 nessWitnessExtractor]: Location invariant before [L112-L112] d1 == (_Bool)1 [2024-01-29 14:18:39,876 INFO L98 nessWitnessExtractor]: Location invariant before [L112-L112] d2 == (_Bool)0 [2024-01-29 14:18:39,876 INFO L98 nessWitnessExtractor]: Location invariant before [L112-L112] d3 == (_Bool)0 [2024-01-29 14:18:39,876 INFO L98 nessWitnessExtractor]: Location invariant before [L112-L112] g2 == (_Bool)0 [2024-01-29 14:18:39,876 INFO L98 nessWitnessExtractor]: Location invariant before [L112-L112] g3 == (_Bool)0 [2024-01-29 14:18:39,877 INFO L98 nessWitnessExtractor]: Location invariant before [L112-L112] pos == 0 [2024-01-29 14:18:39,877 INFO L98 nessWitnessExtractor]: Loop invariant at [L42-L58] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,877 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,877 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,877 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,877 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-01-29 14:18:39,877 INFO L98 nessWitnessExtractor]: Loop invariant at [L64-L80] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,877 INFO L98 nessWitnessExtractor]: Location invariant before [L96-L96] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,878 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] -2147483646 <= pos [2024-01-29 14:18:39,878 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,878 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] -2147483646 <= pos [2024-01-29 14:18:39,878 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,878 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,878 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,878 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] -2147483647 <= pos [2024-01-29 14:18:39,879 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,879 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,879 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] pos <= 2147483646 [2024-01-29 14:18:39,879 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,879 INFO L98 nessWitnessExtractor]: Location invariant before [L116-L116] d2 == (_Bool)1 [2024-01-29 14:18:39,880 INFO L98 nessWitnessExtractor]: Location invariant before [L116-L116] g2 == (_Bool)1 [2024-01-29 14:18:39,880 INFO L98 nessWitnessExtractor]: Location invariant before [L116-L116] g1 == (_Bool)1 [2024-01-29 14:18:39,880 INFO L98 nessWitnessExtractor]: Location invariant before [L116-L116] g3 == (_Bool)0 [2024-01-29 14:18:39,880 INFO L98 nessWitnessExtractor]: Location invariant before [L116-L116] d1 == (_Bool)1 [2024-01-29 14:18:39,880 INFO L98 nessWitnessExtractor]: Location invariant before [L116-L116] pos == 0 [2024-01-29 14:18:39,881 INFO L98 nessWitnessExtractor]: Location invariant before [L116-L116] d3 == (_Bool)1 [2024-01-29 14:18:39,882 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] pos == 0 [2024-01-29 14:18:39,882 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] g3 == (_Bool)0 [2024-01-29 14:18:39,882 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] d2 == (_Bool)1 [2024-01-29 14:18:39,882 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] d3 == (_Bool)1 [2024-01-29 14:18:39,882 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] g1 == (_Bool)1 [2024-01-29 14:18:39,883 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] d1 == (_Bool)1 [2024-01-29 14:18:39,883 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] g2 == (_Bool)0 [2024-01-29 14:18:39,883 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,883 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] pos <= 2147483645 [2024-01-29 14:18:39,883 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,883 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,884 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L51] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,884 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L79] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,884 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L95] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,884 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,884 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] pos == 0 [2024-01-29 14:18:39,885 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] d2 == (_Bool)1 [2024-01-29 14:18:39,885 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] d3 == (_Bool)1 [2024-01-29 14:18:39,885 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] d1 == (_Bool)1 [2024-01-29 14:18:39,886 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] g3 == (_Bool)0 [2024-01-29 14:18:39,886 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] g1 == (_Bool)0 [2024-01-29 14:18:39,886 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] g2 == (_Bool)0 [2024-01-29 14:18:39,886 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,886 INFO L98 nessWitnessExtractor]: Location invariant before [L111-L111] d3 == (_Bool)0 [2024-01-29 14:18:39,886 INFO L98 nessWitnessExtractor]: Location invariant before [L111-L111] d2 == (_Bool)0 [2024-01-29 14:18:39,887 INFO L98 nessWitnessExtractor]: Location invariant before [L111-L111] pos == 0 [2024-01-29 14:18:39,887 INFO L98 nessWitnessExtractor]: Location invariant before [L111-L111] d1 == (_Bool)0 [2024-01-29 14:18:39,887 INFO L98 nessWitnessExtractor]: Location invariant before [L111-L111] g1 == (_Bool)0 [2024-01-29 14:18:39,887 INFO L98 nessWitnessExtractor]: Location invariant before [L111-L111] g3 == (_Bool)0 [2024-01-29 14:18:39,887 INFO L98 nessWitnessExtractor]: Location invariant before [L111-L111] g2 == (_Bool)0 [2024-01-29 14:18:39,887 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,887 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,888 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] pos <= 2147483645 [2024-01-29 14:18:39,888 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,888 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,888 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L101] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,888 INFO L98 nessWitnessExtractor]: Location invariant before [L119-L119] g1 == (_Bool)1 [2024-01-29 14:18:39,888 INFO L98 nessWitnessExtractor]: Location invariant before [L119-L119] d1 == (_Bool)1 [2024-01-29 14:18:39,888 INFO L98 nessWitnessExtractor]: Location invariant before [L119-L119] g3 == (_Bool)1 [2024-01-29 14:18:39,888 INFO L98 nessWitnessExtractor]: Location invariant before [L119-L119] g2 == (_Bool)1 [2024-01-29 14:18:39,889 INFO L98 nessWitnessExtractor]: Location invariant before [L119-L119] d3 == (_Bool)1 [2024-01-29 14:18:39,889 INFO L98 nessWitnessExtractor]: Location invariant before [L119-L119] d2 == (_Bool)1 [2024-01-29 14:18:39,889 INFO L98 nessWitnessExtractor]: Location invariant before [L119-L119] pos == 0 [2024-01-29 14:18:39,889 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,889 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,889 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L57] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,889 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,889 INFO L98 nessWitnessExtractor]: Location invariant before [L113-L113] d2 == (_Bool)1 [2024-01-29 14:18:39,890 INFO L98 nessWitnessExtractor]: Location invariant before [L113-L113] d1 == (_Bool)1 [2024-01-29 14:18:39,890 INFO L98 nessWitnessExtractor]: Location invariant before [L113-L113] g2 == (_Bool)0 [2024-01-29 14:18:39,890 INFO L98 nessWitnessExtractor]: Location invariant before [L113-L113] g3 == (_Bool)0 [2024-01-29 14:18:39,890 INFO L98 nessWitnessExtractor]: Location invariant before [L113-L113] d3 == (_Bool)0 [2024-01-29 14:18:39,890 INFO L98 nessWitnessExtractor]: Location invariant before [L113-L113] g1 == (_Bool)0 [2024-01-29 14:18:39,890 INFO L98 nessWitnessExtractor]: Location invariant before [L113-L113] pos == 0 [2024-01-29 14:18:39,890 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L73] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,891 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L100] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,891 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-29 14:18:39,911 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:18:40,037 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/parallel-misc-3-extended.wvr.c[2895,2908] [2024-01-29 14:18:40,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:18:40,046 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:18:40,053 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) with a witness entry 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 Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 14:18:40,110 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/parallel-misc-3-extended.wvr.c[2895,2908] [2024-01-29 14:18:40,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:18:40,122 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:18:40,122 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40 WrapperNode [2024-01-29 14:18:40,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:18:40,123 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:18:40,123 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:18:40,123 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:18:40,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,151 INFO L138 Inliner]: procedures = 22, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 119 [2024-01-29 14:18:40,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:18:40,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:18:40,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:18:40,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:18:40,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,162 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,177 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-29 14:18:40,177 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,184 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:18:40,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:18:40,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:18:40,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:18:40,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (1/1) ... [2024-01-29 14:18:40,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:18:40,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:18:40,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 14:18:40,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 14:18:40,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:18:40,241 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:18:40,241 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:18:40,241 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:18:40,241 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:18:40,241 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 14:18:40,241 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 14:18:40,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:18:40,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:18:40,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:18:40,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:18:40,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:18:40,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:18:40,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:18:40,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:18:40,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:18:40,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 14:18:40,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 14:18:40,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:18:40,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:18:40,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:18:40,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:18:40,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:18:40,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:18:40,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:18:40,244 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:18:40,324 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:18:40,326 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:18:40,679 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:18:40,679 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:18:40,823 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:18:40,823 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-01-29 14:18:40,823 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:18:40 BoogieIcfgContainer [2024-01-29 14:18:40,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:18:40,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:18:40,827 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:18:40,829 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:18:40,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:18:39" (1/4) ... [2024-01-29 14:18:40,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d052cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:18:40, skipping insertion in model container [2024-01-29 14:18:40,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:18:39" (2/4) ... [2024-01-29 14:18:40,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d052cc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:18:40, skipping insertion in model container [2024-01-29 14:18:40,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:18:40" (3/4) ... [2024-01-29 14:18:40,831 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44d052cc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:18:40, skipping insertion in model container [2024-01-29 14:18:40,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:18:40" (4/4) ... [2024-01-29 14:18:40,833 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-3-extended.wvr.c [2024-01-29 14:18:40,847 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:18:40,847 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2024-01-29 14:18:40,847 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:18:40,930 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-29 14:18:40,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 225 places, 227 transitions, 475 flow [2024-01-29 14:18:41,035 INFO L124 PetriNetUnfolderBase]: 12/224 cut-off events. [2024-01-29 14:18:41,039 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-29 14:18:41,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 224 events. 12/224 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 615 event pairs, 0 based on Foata normal form. 0/114 useless extension candidates. Maximal degree in co-relation 181. Up to 3 conditions per place. [2024-01-29 14:18:41,045 INFO L82 GeneralOperation]: Start removeDead. Operand has 225 places, 227 transitions, 475 flow [2024-01-29 14:18:41,052 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 221 places, 223 transitions, 464 flow [2024-01-29 14:18:41,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:18:41,066 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;@5027d1b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:18:41,066 INFO L358 AbstractCegarLoop]: Starting to check reachability of 149 error locations. [2024-01-29 14:18:41,068 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:18:41,069 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:18:41,069 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:18:41,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:41,069 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:18:41,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (and 146 more)] === [2024-01-29 14:18:41,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:41,073 INFO L85 PathProgramCache]: Analyzing trace with hash 22278, now seen corresponding path program 1 times [2024-01-29 14:18:41,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:41,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703863708] [2024-01-29 14:18:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:41,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:41,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:41,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:41,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703863708] [2024-01-29 14:18:41,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703863708] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:41,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:41,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:41,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065748576] [2024-01-29 14:18:41,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:41,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:41,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:41,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:41,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:41,347 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 227 [2024-01-29 14:18:41,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 223 transitions, 464 flow. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:41,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:41,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 227 [2024-01-29 14:18:41,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:44,614 INFO L124 PetriNetUnfolderBase]: 22108/39200 cut-off events. [2024-01-29 14:18:44,614 INFO L125 PetriNetUnfolderBase]: For 559/559 co-relation queries the response was YES. [2024-01-29 14:18:44,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66685 conditions, 39200 events. 22108/39200 cut-off events. For 559/559 co-relation queries the response was YES. Maximal size of possible extension queue 2073. Compared 370820 event pairs, 8122 based on Foata normal form. 5/21689 useless extension candidates. Maximal degree in co-relation 62486. Up to 21032 conditions per place. [2024-01-29 14:18:44,884 INFO L140 encePairwiseOnDemand]: 212/227 looper letters, 96 selfloop transitions, 3 changer transitions 0/249 dead transitions. [2024-01-29 14:18:44,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 212 places, 249 transitions, 726 flow [2024-01-29 14:18:44,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:44,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:44,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 574 transitions. [2024-01-29 14:18:44,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8428781204111601 [2024-01-29 14:18:44,897 INFO L175 Difference]: Start difference. First operand has 221 places, 223 transitions, 464 flow. Second operand 3 states and 574 transitions. [2024-01-29 14:18:44,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 212 places, 249 transitions, 726 flow [2024-01-29 14:18:44,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 249 transitions, 706 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-29 14:18:44,911 INFO L231 Difference]: Finished difference. Result has 207 places, 212 transitions, 441 flow [2024-01-29 14:18:44,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=441, PETRI_PLACES=207, PETRI_TRANSITIONS=212} [2024-01-29 14:18:44,915 INFO L281 CegarLoopForPetriNet]: 221 programPoint places, -14 predicate places. [2024-01-29 14:18:44,916 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 212 transitions, 441 flow [2024-01-29 14:18:44,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:44,916 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:44,916 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:18:44,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:18:44,917 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (and 146 more)] === [2024-01-29 14:18:44,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:44,917 INFO L85 PathProgramCache]: Analyzing trace with hash 691308, now seen corresponding path program 1 times [2024-01-29 14:18:44,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:44,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840330447] [2024-01-29 14:18:44,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:44,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:44,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:44,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:44,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840330447] [2024-01-29 14:18:44,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840330447] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:44,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:44,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:44,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631936343] [2024-01-29 14:18:44,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:44,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:44,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:44,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:44,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:45,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 227 [2024-01-29 14:18:45,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 212 transitions, 441 flow. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:45,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:45,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 227 [2024-01-29 14:18:45,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:47,937 INFO L124 PetriNetUnfolderBase]: 26948/46620 cut-off events. [2024-01-29 14:18:47,937 INFO L125 PetriNetUnfolderBase]: For 877/877 co-relation queries the response was YES. [2024-01-29 14:18:48,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80541 conditions, 46620 events. 26948/46620 cut-off events. For 877/877 co-relation queries the response was YES. Maximal size of possible extension queue 2455. Compared 441110 event pairs, 10567 based on Foata normal form. 6/26454 useless extension candidates. Maximal degree in co-relation 65674. Up to 26465 conditions per place. [2024-01-29 14:18:48,192 INFO L140 encePairwiseOnDemand]: 217/227 looper letters, 93 selfloop transitions, 3 changer transitions 0/241 dead transitions. [2024-01-29 14:18:48,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 241 transitions, 697 flow [2024-01-29 14:18:48,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:48,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:48,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 562 transitions. [2024-01-29 14:18:48,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8252569750367107 [2024-01-29 14:18:48,194 INFO L175 Difference]: Start difference. First operand has 207 places, 212 transitions, 441 flow. Second operand 3 states and 562 transitions. [2024-01-29 14:18:48,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 241 transitions, 697 flow [2024-01-29 14:18:48,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 241 transitions, 689 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:48,235 INFO L231 Difference]: Finished difference. Result has 202 places, 206 transitions, 434 flow [2024-01-29 14:18:48,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=202, PETRI_TRANSITIONS=206} [2024-01-29 14:18:48,236 INFO L281 CegarLoopForPetriNet]: 221 programPoint places, -19 predicate places. [2024-01-29 14:18:48,236 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 206 transitions, 434 flow [2024-01-29 14:18:48,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:48,237 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:48,237 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 14:18:48,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:18:48,237 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (and 146 more)] === [2024-01-29 14:18:48,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:48,239 INFO L85 PathProgramCache]: Analyzing trace with hash 21431222, now seen corresponding path program 1 times [2024-01-29 14:18:48,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:48,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159307836] [2024-01-29 14:18:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:48,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:48,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:48,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:48,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159307836] [2024-01-29 14:18:48,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159307836] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:48,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:48,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:48,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811222755] [2024-01-29 14:18:48,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:48,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:48,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:48,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:48,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:48,336 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 227 [2024-01-29 14:18:48,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 206 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:48,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:48,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 227 [2024-01-29 14:18:48,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:52,009 INFO L124 PetriNetUnfolderBase]: 33194/58554 cut-off events. [2024-01-29 14:18:52,010 INFO L125 PetriNetUnfolderBase]: For 1247/1247 co-relation queries the response was YES. [2024-01-29 14:18:52,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101438 conditions, 58554 events. 33194/58554 cut-off events. For 1247/1247 co-relation queries the response was YES. Maximal size of possible extension queue 2921. Compared 574091 event pairs, 13569 based on Foata normal form. 3/34072 useless extension candidates. Maximal degree in co-relation 84240. Up to 31312 conditions per place. [2024-01-29 14:18:52,415 INFO L140 encePairwiseOnDemand]: 219/227 looper letters, 98 selfloop transitions, 3 changer transitions 0/241 dead transitions. [2024-01-29 14:18:52,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 241 transitions, 715 flow [2024-01-29 14:18:52,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:52,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:52,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 568 transitions. [2024-01-29 14:18:52,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8340675477239354 [2024-01-29 14:18:52,417 INFO L175 Difference]: Start difference. First operand has 202 places, 206 transitions, 434 flow. Second operand 3 states and 568 transitions. [2024-01-29 14:18:52,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 241 transitions, 715 flow [2024-01-29 14:18:52,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 241 transitions, 707 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:52,482 INFO L231 Difference]: Finished difference. Result has 199 places, 202 transitions, 431 flow [2024-01-29 14:18:52,482 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=199, PETRI_TRANSITIONS=202} [2024-01-29 14:18:52,483 INFO L281 CegarLoopForPetriNet]: 221 programPoint places, -22 predicate places. [2024-01-29 14:18:52,483 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 202 transitions, 431 flow [2024-01-29 14:18:52,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:52,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:52,484 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:18:52,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:18:52,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (and 146 more)] === [2024-01-29 14:18:52,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:52,484 INFO L85 PathProgramCache]: Analyzing trace with hash 664368552, now seen corresponding path program 1 times [2024-01-29 14:18:52,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:52,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094450792] [2024-01-29 14:18:52,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:52,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:52,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:52,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:52,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094450792] [2024-01-29 14:18:52,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094450792] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:52,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:52,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:52,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962056137] [2024-01-29 14:18:52,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:52,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:52,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:52,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:52,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:52,578 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 227 [2024-01-29 14:18:52,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 202 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:52,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:52,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 227 [2024-01-29 14:18:52,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:18:56,688 INFO L124 PetriNetUnfolderBase]: 37452/66805 cut-off events. [2024-01-29 14:18:56,688 INFO L125 PetriNetUnfolderBase]: For 1521/1521 co-relation queries the response was YES. [2024-01-29 14:18:56,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114737 conditions, 66805 events. 37452/66805 cut-off events. For 1521/1521 co-relation queries the response was YES. Maximal size of possible extension queue 3202. Compared 669666 event pairs, 18849 based on Foata normal form. 1/39302 useless extension candidates. Maximal degree in co-relation 90232. Up to 46004 conditions per place. [2024-01-29 14:18:57,278 INFO L140 encePairwiseOnDemand]: 224/227 looper letters, 65 selfloop transitions, 2 changer transitions 0/201 dead transitions. [2024-01-29 14:18:57,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 201 transitions, 563 flow [2024-01-29 14:18:57,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:18:57,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:18:57,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2024-01-29 14:18:57,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7694566813509545 [2024-01-29 14:18:57,280 INFO L175 Difference]: Start difference. First operand has 199 places, 202 transitions, 431 flow. Second operand 3 states and 524 transitions. [2024-01-29 14:18:57,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 201 transitions, 563 flow [2024-01-29 14:18:57,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 201 transitions, 557 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:18:57,349 INFO L231 Difference]: Finished difference. Result has 198 places, 201 transitions, 427 flow [2024-01-29 14:18:57,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=427, PETRI_PLACES=198, PETRI_TRANSITIONS=201} [2024-01-29 14:18:57,350 INFO L281 CegarLoopForPetriNet]: 221 programPoint places, -23 predicate places. [2024-01-29 14:18:57,350 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 201 transitions, 427 flow [2024-01-29 14:18:57,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:57,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:18:57,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:18:57,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:18:57,351 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (and 146 more)] === [2024-01-29 14:18:57,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:18:57,351 INFO L85 PathProgramCache]: Analyzing trace with hash -879410600, now seen corresponding path program 1 times [2024-01-29 14:18:57,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:18:57,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196462933] [2024-01-29 14:18:57,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:18:57,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:18:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:18:57,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:18:57,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:18:57,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196462933] [2024-01-29 14:18:57,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196462933] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:18:57,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:18:57,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:18:57,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131081707] [2024-01-29 14:18:57,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:18:57,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:18:57,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:18:57,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:18:57,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:18:57,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 227 [2024-01-29 14:18:57,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 201 transitions, 427 flow. Second operand has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:18:57,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:18:57,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 227 [2024-01-29 14:18:57,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:19:01,294 INFO L124 PetriNetUnfolderBase]: 36848/64061 cut-off events. [2024-01-29 14:19:01,294 INFO L125 PetriNetUnfolderBase]: For 811/811 co-relation queries the response was YES. [2024-01-29 14:19:01,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110321 conditions, 64061 events. 36848/64061 cut-off events. For 811/811 co-relation queries the response was YES. Maximal size of possible extension queue 3390. Compared 622223 event pairs, 7714 based on Foata normal form. 1/37004 useless extension candidates. Maximal degree in co-relation 110300. Up to 43905 conditions per place. [2024-01-29 14:19:01,677 INFO L140 encePairwiseOnDemand]: 206/227 looper letters, 84 selfloop transitions, 7 changer transitions 1/222 dead transitions. [2024-01-29 14:19:01,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 222 transitions, 658 flow [2024-01-29 14:19:01,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:19:01,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:19:01,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 553 transitions. [2024-01-29 14:19:01,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8120411160058737 [2024-01-29 14:19:01,681 INFO L175 Difference]: Start difference. First operand has 198 places, 201 transitions, 427 flow. Second operand 3 states and 553 transitions. [2024-01-29 14:19:01,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 222 transitions, 658 flow [2024-01-29 14:19:01,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 222 transitions, 654 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:19:01,765 INFO L231 Difference]: Finished difference. Result has 192 places, 200 transitions, 468 flow [2024-01-29 14:19:01,766 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=468, PETRI_PLACES=192, PETRI_TRANSITIONS=200} [2024-01-29 14:19:01,766 INFO L281 CegarLoopForPetriNet]: 221 programPoint places, -29 predicate places. [2024-01-29 14:19:01,766 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 200 transitions, 468 flow [2024-01-29 14:19:01,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 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 14:19:01,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:19:01,767 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:19:01,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:19:01,767 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (and 146 more)] === [2024-01-29 14:19:01,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:19:01,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1491924144, now seen corresponding path program 1 times [2024-01-29 14:19:01,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:19:01,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442245337] [2024-01-29 14:19:01,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:19:01,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:19:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:19:01,812 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 14:19:01,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:19:01,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442245337] [2024-01-29 14:19:01,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442245337] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:19:01,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:19:01,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:19:01,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55947482] [2024-01-29 14:19:01,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:19:01,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:19:01,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:19:01,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:19:01,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:19:01,832 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 227 [2024-01-29 14:19:01,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 200 transitions, 468 flow. Second operand has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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 14:19:01,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:19:01,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 227 [2024-01-29 14:19:01,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:19:06,594 INFO L124 PetriNetUnfolderBase]: 39573/68876 cut-off events. [2024-01-29 14:19:06,594 INFO L125 PetriNetUnfolderBase]: For 8619/8747 co-relation queries the response was YES. [2024-01-29 14:19:06,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135268 conditions, 68876 events. 39573/68876 cut-off events. For 8619/8747 co-relation queries the response was YES. Maximal size of possible extension queue 3665. Compared 679236 event pairs, 19312 based on Foata normal form. 2/46963 useless extension candidates. Maximal degree in co-relation 83831. Up to 48780 conditions per place. [2024-01-29 14:19:07,048 INFO L140 encePairwiseOnDemand]: 223/227 looper letters, 68 selfloop transitions, 2 changer transitions 0/198 dead transitions. [2024-01-29 14:19:07,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 198 transitions, 604 flow [2024-01-29 14:19:07,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:19:07,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:19:07,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 528 transitions. [2024-01-29 14:19:07,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.775330396475771 [2024-01-29 14:19:07,050 INFO L175 Difference]: Start difference. First operand has 192 places, 200 transitions, 468 flow. Second operand 3 states and 528 transitions. [2024-01-29 14:19:07,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 198 transitions, 604 flow [2024-01-29 14:19:07,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 198 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:19:07,112 INFO L231 Difference]: Finished difference. Result has 191 places, 198 transitions, 461 flow [2024-01-29 14:19:07,112 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=461, PETRI_PLACES=191, PETRI_TRANSITIONS=198} [2024-01-29 14:19:07,112 INFO L281 CegarLoopForPetriNet]: 221 programPoint places, -30 predicate places. [2024-01-29 14:19:07,113 INFO L495 AbstractCegarLoop]: Abstraction has has 191 places, 198 transitions, 461 flow [2024-01-29 14:19:07,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 154.66666666666666) internal successors, (464), 3 states have internal predecessors, (464), 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 14:19:07,113 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:19:07,113 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:19:07,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:19:07,113 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (and 146 more)] === [2024-01-29 14:19:07,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:19:07,114 INFO L85 PathProgramCache]: Analyzing trace with hash 994992446, now seen corresponding path program 1 times [2024-01-29 14:19:07,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:19:07,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705748779] [2024-01-29 14:19:07,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:19:07,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:19:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:19:07,146 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 14:19:07,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:19:07,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705748779] [2024-01-29 14:19:07,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705748779] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:19:07,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:19:07,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:19:07,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162196012] [2024-01-29 14:19:07,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:19:07,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:19:07,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:19:07,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:19:07,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:19:07,166 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 227 [2024-01-29 14:19:07,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 198 transitions, 461 flow. Second operand has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 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 14:19:07,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:19:07,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 227 [2024-01-29 14:19:07,167 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:19:11,778 INFO L124 PetriNetUnfolderBase]: 39411/67711 cut-off events. [2024-01-29 14:19:11,778 INFO L125 PetriNetUnfolderBase]: For 8659/8691 co-relation queries the response was YES. [2024-01-29 14:19:11,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133395 conditions, 67711 events. 39411/67711 cut-off events. For 8659/8691 co-relation queries the response was YES. Maximal size of possible extension queue 3671. Compared 660115 event pairs, 19144 based on Foata normal form. 2/46435 useless extension candidates. Maximal degree in co-relation 133366. Up to 48554 conditions per place. [2024-01-29 14:19:12,213 INFO L140 encePairwiseOnDemand]: 222/227 looper letters, 69 selfloop transitions, 2 changer transitions 0/195 dead transitions. [2024-01-29 14:19:12,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 195 transitions, 597 flow [2024-01-29 14:19:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:19:12,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:19:12,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 524 transitions. [2024-01-29 14:19:12,215 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7694566813509545 [2024-01-29 14:19:12,215 INFO L175 Difference]: Start difference. First operand has 191 places, 198 transitions, 461 flow. Second operand 3 states and 524 transitions. [2024-01-29 14:19:12,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 195 transitions, 597 flow [2024-01-29 14:19:12,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 195 transitions, 593 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:19:12,286 INFO L231 Difference]: Finished difference. Result has 188 places, 195 transitions, 455 flow [2024-01-29 14:19:12,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=227, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=455, PETRI_PLACES=188, PETRI_TRANSITIONS=195} [2024-01-29 14:19:12,287 INFO L281 CegarLoopForPetriNet]: 221 programPoint places, -33 predicate places. [2024-01-29 14:19:12,287 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 195 transitions, 455 flow [2024-01-29 14:19:12,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 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 14:19:12,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:19:12,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:19:12,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:19:12,288 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (and 146 more)] === [2024-01-29 14:19:12,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:19:12,288 INFO L85 PathProgramCache]: Analyzing trace with hash 274439879, now seen corresponding path program 1 times [2024-01-29 14:19:12,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:19:12,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646341940] [2024-01-29 14:19:12,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:19:12,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:19:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:19:12,321 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 14:19:12,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:19:12,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646341940] [2024-01-29 14:19:12,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646341940] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:19:12,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:19:12,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:19:12,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245222988] [2024-01-29 14:19:12,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:19:12,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:19:12,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:19:12,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:19:12,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:19:12,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 227 [2024-01-29 14:19:12,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 195 transitions, 455 flow. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 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 14:19:12,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:19:12,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 227 [2024-01-29 14:19:12,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand