./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp2x6.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/bench-exp2x6.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27552612 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/bench-exp2x6.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x6.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-2755261-m [2024-01-26 15:19:46,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:19:46,706 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:19:46,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:19:46,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:19:46,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:19:46,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:19:46,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:19:46,726 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:19:46,726 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:19:46,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:19:46,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:19:46,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:19:46,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:19:46,728 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:19:46,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:19:46,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:19:46,729 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:19:46,729 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:19:46,729 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:19:46,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:19:46,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:19:46,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:19:46,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:19:46,731 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:19:46,731 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:19:46,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:19:46,731 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:19:46,732 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:19:46,732 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:19:46,732 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:19:46,732 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:19:46,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:19:46,733 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:19:46,733 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:19:46,733 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:19:46,734 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:19:46,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:19:46,734 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:19:46,734 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:19:46,735 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:19:46,735 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:19:46,735 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:19:46,735 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:19:46,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:19:46,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:19:46,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:19:46,984 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:19:46,985 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:19:46,986 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c [2024-01-26 15:19:48,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:19:48,279 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:19:48,280 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x6.wvr.c [2024-01-26 15:19:48,289 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f3f17e4d/b4e876c2659145f3a6203fdd023de8d8/FLAG91249f7e7 [2024-01-26 15:19:48,301 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f3f17e4d/b4e876c2659145f3a6203fdd023de8d8 [2024-01-26 15:19:48,303 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:19:48,304 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:19:48,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x6.wvr.yml/witness.yml [2024-01-26 15:19:48,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:19:48,396 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:19:48,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:19:48,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:19:48,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:19:48,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:19:48" (1/2) ... [2024-01-26 15:19:48,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d41164d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:19:48, skipping insertion in model container [2024-01-26 15:19:48,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:19:48" (1/2) ... [2024-01-26 15:19:48,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@30e9a02c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:19:48, skipping insertion in model container [2024-01-26 15:19:48,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:19:48" (2/2) ... [2024-01-26 15:19:48,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d41164d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48, skipping insertion in model container [2024-01-26 15:19:48,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:19:48" (2/2) ... [2024-01-26 15:19:48,408 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:19:48,427 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:19:48,430 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,430 INFO L98 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,431 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,431 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,431 INFO L98 nessWitnessExtractor]: Loop invariant at [L71-L76] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,432 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L43] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,432 INFO L98 nessWitnessExtractor]: Location invariant after [L38-L43] n == 0U [2024-01-26 15:19:48,432 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] n == 0U [2024-01-26 15:19:48,432 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,433 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,433 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,433 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,433 INFO L98 nessWitnessExtractor]: Loop invariant at [L49-L54] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,433 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,433 INFO L98 nessWitnessExtractor]: Loop invariant at [L60-L65] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,433 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,433 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,434 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] x4 == 0U [2024-01-26 15:19:48,434 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] n == 0U [2024-01-26 15:19:48,434 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,434 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,435 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,435 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,435 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] x3 == 0U [2024-01-26 15:19:48,435 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] n == 0U [2024-01-26 15:19:48,435 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] x4 == 0U [2024-01-26 15:19:48,435 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] x3 == 0U [2024-01-26 15:19:48,435 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (long long )x1 + (long long )x3 >= 0LL [2024-01-26 15:19:48,436 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] n == 0U [2024-01-26 15:19:48,436 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (0LL - (long long )x1) + (long long )x3 >= 0LL [2024-01-26 15:19:48,436 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (0LL - (long long )x1) - (long long )x3 >= 0LL [2024-01-26 15:19:48,436 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (long long )x1 - (long long )x3 >= 0LL [2024-01-26 15:19:48,436 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] x1 == 0U [2024-01-26 15:19:48,436 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] x2 == 0U [2024-01-26 15:19:48,437 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] x4 == 0U [2024-01-26 15:19:48,437 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,437 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,437 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] x4 == 0U [2024-01-26 15:19:48,438 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] n == 0U [2024-01-26 15:19:48,438 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] x2 == 0U [2024-01-26 15:19:48,439 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] x3 == 0U [2024-01-26 15:19:48,439 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,439 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,439 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-26 15:19:48,458 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:19:48,602 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/bench-exp2x6.wvr.c[2505,2518] [2024-01-26 15:19:48,605 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:19:48,612 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-26 15:19:48,714 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/bench-exp2x6.wvr.c[2505,2518] [2024-01-26 15:19:48,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:19:48,728 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:19:48,731 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48 WrapperNode [2024-01-26 15:19:48,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:19:48,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:19:48,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:19:48,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:19:48,748 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 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,765 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 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,856 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-01-26 15:19:48,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:19:48,858 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:19:48,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:19:48,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:19:48,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,869 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,881 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-01-26 15:19:48,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,896 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:19:48,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:19:48,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:19:48,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:19:48,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48" (1/1) ... [2024-01-26 15:19:48,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:19:48,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:19:48,930 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) [2024-01-26 15:19:48,934 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 [2024-01-26 15:19:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:19:48,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 15:19:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 15:19:48,963 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 15:19:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 15:19:48,963 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-26 15:19:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-26 15:19:48,963 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-26 15:19:48,963 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-26 15:19:48,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:19:48,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:19:48,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:19:48,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-26 15:19:48,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-26 15:19:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:19:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:19:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:19:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:19:48,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-26 15:19:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-26 15:19:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:19:48,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:19:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-26 15:19:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-26 15:19:48,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-26 15:19:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-26 15:19:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-26 15:19:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:19:48,968 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:19:49,076 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:19:49,077 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:19:49,336 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:19:49,336 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:19:49,454 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:19:49,454 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-26 15:19:49,455 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:19:49 BoogieIcfgContainer [2024-01-26 15:19:49,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:19:49,456 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:19:49,456 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:19:49,459 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:19:49,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:19:48" (1/4) ... [2024-01-26 15:19:49,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f427c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:19:49, skipping insertion in model container [2024-01-26 15:19:49,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:19:48" (2/4) ... [2024-01-26 15:19:49,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f427c0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:19:49, skipping insertion in model container [2024-01-26 15:19:49,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:19:48" (3/4) ... [2024-01-26 15:19:49,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f427c0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:19:49, skipping insertion in model container [2024-01-26 15:19:49,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:19:49" (4/4) ... [2024-01-26 15:19:49,461 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x6.wvr.c [2024-01-26 15:19:49,480 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:19:49,480 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 49 error locations. [2024-01-26 15:19:49,480 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:19:49,559 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-26 15:19:49,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 131 transitions, 290 flow [2024-01-26 15:19:49,651 INFO L124 PetriNetUnfolderBase]: 4/127 cut-off events. [2024-01-26 15:19:49,652 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-26 15:19:49,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 127 events. 4/127 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 352 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 104. Up to 2 conditions per place. [2024-01-26 15:19:49,658 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 131 transitions, 290 flow [2024-01-26 15:19:49,666 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 126 transitions, 276 flow [2024-01-26 15:19:49,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:19:49,684 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;@39eff989, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:19:49,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 82 error locations. [2024-01-26 15:19:49,687 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:19:49,690 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:19:49,691 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:19:49,691 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:19:49,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:19:49,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-26 15:19:49,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:19:49,696 INFO L85 PathProgramCache]: Analyzing trace with hash 14457, now seen corresponding path program 1 times [2024-01-26 15:19:49,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:19:49,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354812685] [2024-01-26 15:19:49,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:19:49,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:19:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:19:49,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:19:49,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:19:49,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354812685] [2024-01-26 15:19:49,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354812685] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:19:49,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:19:49,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:19:49,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889066077] [2024-01-26 15:19:49,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:19:49,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:19:49,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:19:49,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:19:49,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:19:50,009 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 131 [2024-01-26 15:19:50,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 126 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:19:50,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:19:50,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 131 [2024-01-26 15:19:50,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:19:53,582 INFO L124 PetriNetUnfolderBase]: 24674/40945 cut-off events. [2024-01-26 15:19:53,583 INFO L125 PetriNetUnfolderBase]: For 1361/1361 co-relation queries the response was YES. [2024-01-26 15:19:53,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73169 conditions, 40945 events. 24674/40945 cut-off events. For 1361/1361 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 360602 event pairs, 17952 based on Foata normal form. 3/37456 useless extension candidates. Maximal degree in co-relation 65738. Up to 31015 conditions per place. [2024-01-26 15:19:53,937 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 44 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2024-01-26 15:19:53,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 121 transitions, 358 flow [2024-01-26 15:19:53,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:19:53,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:19:53,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2024-01-26 15:19:53,948 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.732824427480916 [2024-01-26 15:19:53,949 INFO L175 Difference]: Start difference. First operand has 135 places, 126 transitions, 276 flow. Second operand 3 states and 288 transitions. [2024-01-26 15:19:53,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 121 transitions, 358 flow [2024-01-26 15:19:53,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 121 transitions, 342 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-26 15:19:53,975 INFO L231 Difference]: Finished difference. Result has 124 places, 121 transitions, 254 flow [2024-01-26 15:19:53,977 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=254, PETRI_PLACES=124, PETRI_TRANSITIONS=121} [2024-01-26 15:19:53,979 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -11 predicate places. [2024-01-26 15:19:53,979 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 121 transitions, 254 flow [2024-01-26 15:19:53,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.66666666666667) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:19:53,980 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:19:53,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-26 15:19:53,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:19:53,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-26 15:19:53,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:19:53,981 INFO L85 PathProgramCache]: Analyzing trace with hash 448619, now seen corresponding path program 1 times [2024-01-26 15:19:53,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:19:53,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743013009] [2024-01-26 15:19:53,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:19:53,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:19:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:19:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:19:54,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:19:54,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743013009] [2024-01-26 15:19:54,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743013009] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:19:54,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:19:54,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:19:54,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911153107] [2024-01-26 15:19:54,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:19:54,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:19:54,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:19:54,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:19:54,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:19:54,049 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 131 [2024-01-26 15:19:54,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 121 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2024-01-26 15:19:54,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:19:54,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 131 [2024-01-26 15:19:54,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:19:56,941 INFO L124 PetriNetUnfolderBase]: 24674/40943 cut-off events. [2024-01-26 15:19:56,941 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-01-26 15:19:57,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72366 conditions, 40943 events. 24674/40943 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 360539 event pairs, 17952 based on Foata normal form. 2/37455 useless extension candidates. Maximal degree in co-relation 72326. Up to 31017 conditions per place. [2024-01-26 15:19:57,235 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 44 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2024-01-26 15:19:57,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 119 transitions, 342 flow [2024-01-26 15:19:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:19:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:19:57,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2024-01-26 15:19:57,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7404580152671756 [2024-01-26 15:19:57,241 INFO L175 Difference]: Start difference. First operand has 124 places, 121 transitions, 254 flow. Second operand 3 states and 291 transitions. [2024-01-26 15:19:57,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 119 transitions, 342 flow [2024-01-26 15:19:57,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 119 transitions, 338 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:19:57,245 INFO L231 Difference]: Finished difference. Result has 122 places, 119 transitions, 250 flow [2024-01-26 15:19:57,246 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=122, PETRI_TRANSITIONS=119} [2024-01-26 15:19:57,246 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -13 predicate places. [2024-01-26 15:19:57,247 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 119 transitions, 250 flow [2024-01-26 15:19:57,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2024-01-26 15:19:57,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:19:57,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-26 15:19:57,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:19:57,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-26 15:19:57,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:19:57,248 INFO L85 PathProgramCache]: Analyzing trace with hash 13907665, now seen corresponding path program 1 times [2024-01-26 15:19:57,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:19:57,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042772809] [2024-01-26 15:19:57,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:19:57,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:19:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:19:57,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:19:57,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:19:57,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042772809] [2024-01-26 15:19:57,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042772809] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:19:57,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:19:57,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:19:57,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123467044] [2024-01-26 15:19:57,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:19:57,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:19:57,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:19:57,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:19:57,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:19:57,344 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 131 [2024-01-26 15:19:57,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 119 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2024-01-26 15:19:57,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:19:57,345 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 131 [2024-01-26 15:19:57,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:19:59,736 INFO L124 PetriNetUnfolderBase]: 24674/40941 cut-off events. [2024-01-26 15:19:59,737 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-01-26 15:19:59,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72364 conditions, 40941 events. 24674/40941 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 360647 event pairs, 17952 based on Foata normal form. 2/37455 useless extension candidates. Maximal degree in co-relation 72336. Up to 31018 conditions per place. [2024-01-26 15:20:00,025 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 44 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2024-01-26 15:20:00,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 117 transitions, 338 flow [2024-01-26 15:20:00,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:20:00,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:20:00,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2024-01-26 15:20:00,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7404580152671756 [2024-01-26 15:20:00,027 INFO L175 Difference]: Start difference. First operand has 122 places, 119 transitions, 250 flow. Second operand 3 states and 291 transitions. [2024-01-26 15:20:00,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 117 transitions, 338 flow [2024-01-26 15:20:00,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 117 transitions, 334 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:20:00,029 INFO L231 Difference]: Finished difference. Result has 120 places, 117 transitions, 246 flow [2024-01-26 15:20:00,030 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=120, PETRI_TRANSITIONS=117} [2024-01-26 15:20:00,030 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -15 predicate places. [2024-01-26 15:20:00,030 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 117 transitions, 246 flow [2024-01-26 15:20:00,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 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) [2024-01-26 15:20:00,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:20:00,031 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-26 15:20:00,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:20:00,031 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-26 15:20:00,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:20:00,032 INFO L85 PathProgramCache]: Analyzing trace with hash 431138035, now seen corresponding path program 1 times [2024-01-26 15:20:00,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:20:00,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557019271] [2024-01-26 15:20:00,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:20:00,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:20:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:20:00,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:20:00,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:20:00,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557019271] [2024-01-26 15:20:00,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557019271] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:20:00,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:20:00,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:20:00,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255654762] [2024-01-26 15:20:00,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:20:00,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:20:00,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:20:00,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:20:00,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:20:00,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 131 [2024-01-26 15:20:00,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 117 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-01-26 15:20:00,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:20:00,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 131 [2024-01-26 15:20:00,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:20:02,570 INFO L124 PetriNetUnfolderBase]: 24674/40938 cut-off events. [2024-01-26 15:20:02,573 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-01-26 15:20:02,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72363 conditions, 40938 events. 24674/40938 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 360628 event pairs, 17952 based on Foata normal form. 3/37455 useless extension candidates. Maximal degree in co-relation 72345. Up to 31020 conditions per place. [2024-01-26 15:20:02,864 INFO L140 encePairwiseOnDemand]: 126/131 looper letters, 46 selfloop transitions, 2 changer transitions 0/114 dead transitions. [2024-01-26 15:20:02,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 114 transitions, 336 flow [2024-01-26 15:20:02,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:20:02,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:20:02,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2024-01-26 15:20:02,871 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7099236641221374 [2024-01-26 15:20:02,871 INFO L175 Difference]: Start difference. First operand has 120 places, 117 transitions, 246 flow. Second operand 3 states and 279 transitions. [2024-01-26 15:20:02,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 114 transitions, 336 flow [2024-01-26 15:20:02,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 114 transitions, 332 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:20:02,873 INFO L231 Difference]: Finished difference. Result has 117 places, 114 transitions, 240 flow [2024-01-26 15:20:02,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=117, PETRI_TRANSITIONS=114} [2024-01-26 15:20:02,875 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -18 predicate places. [2024-01-26 15:20:02,875 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 114 transitions, 240 flow [2024-01-26 15:20:02,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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) [2024-01-26 15:20:02,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:20:02,876 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:20:02,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 15:20:02,876 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-26 15:20:02,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:20:02,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2081502326, now seen corresponding path program 1 times [2024-01-26 15:20:02,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:20:02,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573513027] [2024-01-26 15:20:02,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:20:02,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:20:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:20:02,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:20:02,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:20:02,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573513027] [2024-01-26 15:20:02,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573513027] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:20:02,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:20:02,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:20:02,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814134939] [2024-01-26 15:20:02,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:20:02,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:20:02,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:20:02,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:20:02,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:20:02,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 131 [2024-01-26 15:20:02,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 114 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:20:02,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:20:02,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 131 [2024-01-26 15:20:02,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:20:06,540 INFO L124 PetriNetUnfolderBase]: 44633/68000 cut-off events. [2024-01-26 15:20:06,541 INFO L125 PetriNetUnfolderBase]: For 468/468 co-relation queries the response was YES. [2024-01-26 15:20:06,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124922 conditions, 68000 events. 44633/68000 cut-off events. For 468/468 co-relation queries the response was YES. Maximal size of possible extension queue 3418. Compared 555941 event pairs, 34013 based on Foata normal form. 4/53451 useless extension candidates. Maximal degree in co-relation 124905. Up to 56255 conditions per place. [2024-01-26 15:20:06,983 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 49 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2024-01-26 15:20:06,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 109 transitions, 332 flow [2024-01-26 15:20:06,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:20:06,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:20:06,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 275 transitions. [2024-01-26 15:20:06,985 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6997455470737913 [2024-01-26 15:20:06,985 INFO L175 Difference]: Start difference. First operand has 117 places, 114 transitions, 240 flow. Second operand 3 states and 275 transitions. [2024-01-26 15:20:06,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 109 transitions, 332 flow [2024-01-26 15:20:06,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 109 transitions, 328 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:20:06,987 INFO L231 Difference]: Finished difference. Result has 112 places, 109 transitions, 230 flow [2024-01-26 15:20:06,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=112, PETRI_TRANSITIONS=109} [2024-01-26 15:20:06,988 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -23 predicate places. [2024-01-26 15:20:06,988 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 109 transitions, 230 flow [2024-01-26 15:20:06,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:20:06,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:20:06,989 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:20:06,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-26 15:20:06,989 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-26 15:20:06,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:20:06,990 INFO L85 PathProgramCache]: Analyzing trace with hash -701598959, now seen corresponding path program 1 times [2024-01-26 15:20:06,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:20:06,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599711071] [2024-01-26 15:20:06,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:20:06,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:20:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:20:07,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:20:07,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:20:07,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599711071] [2024-01-26 15:20:07,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599711071] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:20:07,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:20:07,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:20:07,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739256955] [2024-01-26 15:20:07,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:20:07,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:20:07,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:20:07,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:20:07,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:20:07,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 131 [2024-01-26 15:20:07,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 109 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2024-01-26 15:20:07,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:20:07,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 131 [2024-01-26 15:20:07,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:20:09,345 INFO L124 PetriNetUnfolderBase]: 24674/40931 cut-off events. [2024-01-26 15:20:09,345 INFO L125 PetriNetUnfolderBase]: For 307/307 co-relation queries the response was YES. [2024-01-26 15:20:09,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72356 conditions, 40931 events. 24674/40931 cut-off events. For 307/307 co-relation queries the response was YES. Maximal size of possible extension queue 2236. Compared 360499 event pairs, 17952 based on Foata normal form. 0/37450 useless extension candidates. Maximal degree in co-relation 72323. Up to 31016 conditions per place. [2024-01-26 15:20:09,598 INFO L140 encePairwiseOnDemand]: 127/131 looper letters, 46 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2024-01-26 15:20:09,598 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 107 transitions, 322 flow [2024-01-26 15:20:09,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:20:09,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:20:09,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 281 transitions. [2024-01-26 15:20:09,600 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7150127226463104 [2024-01-26 15:20:09,600 INFO L175 Difference]: Start difference. First operand has 112 places, 109 transitions, 230 flow. Second operand 3 states and 281 transitions. [2024-01-26 15:20:09,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 107 transitions, 322 flow [2024-01-26 15:20:09,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 107 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:20:09,602 INFO L231 Difference]: Finished difference. Result has 110 places, 107 transitions, 226 flow [2024-01-26 15:20:09,602 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=110, PETRI_TRANSITIONS=107} [2024-01-26 15:20:09,602 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -25 predicate places. [2024-01-26 15:20:09,603 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 107 transitions, 226 flow [2024-01-26 15:20:09,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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) [2024-01-26 15:20:09,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:20:09,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:20:09,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-26 15:20:09,603 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-26 15:20:09,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:20:09,604 INFO L85 PathProgramCache]: Analyzing trace with hash -789069194, now seen corresponding path program 1 times [2024-01-26 15:20:09,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:20:09,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347406404] [2024-01-26 15:20:09,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:20:09,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:20:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:20:09,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:20:09,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:20:09,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347406404] [2024-01-26 15:20:09,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347406404] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:20:09,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:20:09,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:20:09,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302912357] [2024-01-26 15:20:09,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:20:09,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:20:09,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:20:09,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:20:09,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:20:09,698 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 131 [2024-01-26 15:20:09,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 107 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2024-01-26 15:20:09,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:20:09,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 131 [2024-01-26 15:20:09,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:20:12,411 INFO L124 PetriNetUnfolderBase]: 27612/46027 cut-off events. [2024-01-26 15:20:12,412 INFO L125 PetriNetUnfolderBase]: For 350/350 co-relation queries the response was YES. [2024-01-26 15:20:12,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81286 conditions, 46027 events. 27612/46027 cut-off events. For 350/350 co-relation queries the response was YES. Maximal size of possible extension queue 2430. Compared 408409 event pairs, 16362 based on Foata normal form. 1600/45235 useless extension candidates. Maximal degree in co-relation 81260. Up to 31767 conditions per place. [2024-01-26 15:20:12,637 INFO L140 encePairwiseOnDemand]: 122/131 looper letters, 70 selfloop transitions, 2 changer transitions 0/125 dead transitions. [2024-01-26 15:20:12,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 125 transitions, 409 flow [2024-01-26 15:20:12,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:20:12,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:20:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 379 transitions. [2024-01-26 15:20:12,639 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7232824427480916 [2024-01-26 15:20:12,639 INFO L175 Difference]: Start difference. First operand has 110 places, 107 transitions, 226 flow. Second operand 4 states and 379 transitions. [2024-01-26 15:20:12,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 125 transitions, 409 flow [2024-01-26 15:20:12,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 125 transitions, 405 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:20:12,642 INFO L231 Difference]: Finished difference. Result has 104 places, 100 transitions, 212 flow [2024-01-26 15:20:12,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=104, PETRI_TRANSITIONS=100} [2024-01-26 15:20:12,642 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -31 predicate places. [2024-01-26 15:20:12,642 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 100 transitions, 212 flow [2024-01-26 15:20:12,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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) [2024-01-26 15:20:12,643 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:20:12,643 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:20:12,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-26 15:20:12,643 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-26 15:20:12,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:20:12,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1910314738, now seen corresponding path program 1 times [2024-01-26 15:20:12,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:20:12,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983379433] [2024-01-26 15:20:12,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:20:12,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:20:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:20:12,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:20:12,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:20:12,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983379433] [2024-01-26 15:20:12,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983379433] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:20:12,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:20:12,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:20:12,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927199393] [2024-01-26 15:20:12,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:20:12,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:20:12,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:20:12,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:20:12,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:20:12,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 131 [2024-01-26 15:20:12,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 100 transitions, 212 flow. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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) [2024-01-26 15:20:12,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:20:12,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 131 [2024-01-26 15:20:12,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:20:15,274 INFO L124 PetriNetUnfolderBase]: 27916/46101 cut-off events. [2024-01-26 15:20:15,274 INFO L125 PetriNetUnfolderBase]: For 431/431 co-relation queries the response was YES. [2024-01-26 15:20:15,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81719 conditions, 46101 events. 27916/46101 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 2364. Compared 404166 event pairs, 10874 based on Foata normal form. 1792/45719 useless extension candidates. Maximal degree in co-relation 81684. Up to 31785 conditions per place. [2024-01-26 15:20:15,504 INFO L140 encePairwiseOnDemand]: 122/131 looper letters, 76 selfloop transitions, 2 changer transitions 0/124 dead transitions. [2024-01-26 15:20:15,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 124 transitions, 419 flow [2024-01-26 15:20:15,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:20:15,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:20:15,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 385 transitions. [2024-01-26 15:20:15,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7347328244274809 [2024-01-26 15:20:15,507 INFO L175 Difference]: Start difference. First operand has 104 places, 100 transitions, 212 flow. Second operand 4 states and 385 transitions. [2024-01-26 15:20:15,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 124 transitions, 419 flow [2024-01-26 15:20:15,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 124 transitions, 416 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:20:15,509 INFO L231 Difference]: Finished difference. Result has 98 places, 93 transitions, 199 flow [2024-01-26 15:20:15,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=199, PETRI_PLACES=98, PETRI_TRANSITIONS=93} [2024-01-26 15:20:15,510 INFO L281 CegarLoopForPetriNet]: 135 programPoint places, -37 predicate places. [2024-01-26 15:20:15,510 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 93 transitions, 199 flow [2024-01-26 15:20:15,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 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) [2024-01-26 15:20:15,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:20:15,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:20:15,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-26 15:20:15,511 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (and 79 more)] === [2024-01-26 15:20:15,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:20:15,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1913733498, now seen corresponding path program 1 times [2024-01-26 15:20:15,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:20:15,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023444046] [2024-01-26 15:20:15,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:20:15,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:20:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:20:15,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-26 15:20:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-26 15:20:15,544 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-26 15:20:15,545 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-26 15:20:15,545 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 82 remaining) [2024-01-26 15:20:15,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 82 remaining) [2024-01-26 15:20:15,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 82 remaining) [2024-01-26 15:20:15,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 82 remaining) [2024-01-26 15:20:15,547 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 82 remaining) [2024-01-26 15:20:15,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 82 remaining) [2024-01-26 15:20:15,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 82 remaining) [2024-01-26 15:20:15,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 82 remaining) [2024-01-26 15:20:15,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 82 remaining) [2024-01-26 15:20:15,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 82 remaining) [2024-01-26 15:20:15,548 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 82 remaining) [2024-01-26 15:20:15,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 82 remaining) [2024-01-26 15:20:15,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 82 remaining) [2024-01-26 15:20:15,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 82 remaining) [2024-01-26 15:20:15,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 82 remaining) [2024-01-26 15:20:15,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 82 remaining) [2024-01-26 15:20:15,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 82 remaining) [2024-01-26 15:20:15,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 82 remaining) [2024-01-26 15:20:15,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 82 remaining) [2024-01-26 15:20:15,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 82 remaining) [2024-01-26 15:20:15,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 82 remaining) [2024-01-26 15:20:15,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 82 remaining) [2024-01-26 15:20:15,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 82 remaining) [2024-01-26 15:20:15,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 82 remaining) [2024-01-26 15:20:15,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 82 remaining) [2024-01-26 15:20:15,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 82 remaining) [2024-01-26 15:20:15,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 82 remaining) [2024-01-26 15:20:15,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 82 remaining) [2024-01-26 15:20:15,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 82 remaining) [2024-01-26 15:20:15,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 82 remaining) [2024-01-26 15:20:15,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 82 remaining) [2024-01-26 15:20:15,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 82 remaining) [2024-01-26 15:20:15,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 82 remaining) [2024-01-26 15:20:15,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 82 remaining) [2024-01-26 15:20:15,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 82 remaining) [2024-01-26 15:20:15,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 82 remaining) [2024-01-26 15:20:15,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 82 remaining) [2024-01-26 15:20:15,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 82 remaining) [2024-01-26 15:20:15,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 82 remaining) [2024-01-26 15:20:15,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 82 remaining) [2024-01-26 15:20:15,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 82 remaining) [2024-01-26 15:20:15,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 82 remaining) [2024-01-26 15:20:15,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (39 of 82 remaining) [2024-01-26 15:20:15,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 82 remaining) [2024-01-26 15:20:15,553 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 82 remaining) [2024-01-26 15:20:15,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 82 remaining) [2024-01-26 15:20:15,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 82 remaining) [2024-01-26 15:20:15,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 82 remaining) [2024-01-26 15:20:15,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 82 remaining) [2024-01-26 15:20:15,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err6ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 82 remaining) [2024-01-26 15:20:15,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 82 remaining) [2024-01-26 15:20:15,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 82 remaining) [2024-01-26 15:20:15,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 82 remaining) [2024-01-26 15:20:15,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 82 remaining) [2024-01-26 15:20:15,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 82 remaining) [2024-01-26 15:20:15,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 82 remaining) [2024-01-26 15:20:15,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 82 remaining) [2024-01-26 15:20:15,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 82 remaining) [2024-01-26 15:20:15,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 82 remaining) [2024-01-26 15:20:15,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 82 remaining) [2024-01-26 15:20:15,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 82 remaining) [2024-01-26 15:20:15,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 82 remaining) [2024-01-26 15:20:15,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 82 remaining) [2024-01-26 15:20:15,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 82 remaining) [2024-01-26 15:20:15,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 82 remaining) [2024-01-26 15:20:15,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 82 remaining) [2024-01-26 15:20:15,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 82 remaining) [2024-01-26 15:20:15,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 82 remaining) [2024-01-26 15:20:15,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 82 remaining) [2024-01-26 15:20:15,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 82 remaining) [2024-01-26 15:20:15,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 82 remaining) [2024-01-26 15:20:15,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 82 remaining) [2024-01-26 15:20:15,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 82 remaining) [2024-01-26 15:20:15,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 82 remaining) [2024-01-26 15:20:15,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 82 remaining) [2024-01-26 15:20:15,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 82 remaining) [2024-01-26 15:20:15,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 82 remaining) [2024-01-26 15:20:15,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 82 remaining) [2024-01-26 15:20:15,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 82 remaining) [2024-01-26 15:20:15,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 82 remaining) [2024-01-26 15:20:15,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 82 remaining) [2024-01-26 15:20:15,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread4Err5ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 82 remaining) [2024-01-26 15:20:15,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-26 15:20:15,559 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:20:15,564 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 15:20:15,564 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 15:20:15,593 INFO L503 ceAbstractionStarter]: Automizer considered 48 witness invariants [2024-01-26 15:20:15,593 INFO L504 ceAbstractionStarter]: WitnessConsidered=48 [2024-01-26 15:20:15,594 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 03:20:15 BasicIcfg [2024-01-26 15:20:15,594 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 15:20:15,594 INFO L158 Benchmark]: Toolchain (without parser) took 27198.34ms. Allocated memory was 163.6MB in the beginning and 14.6GB in the end (delta: 14.4GB). Free memory was 90.7MB in the beginning and 12.2GB in the end (delta: -12.1GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2024-01-26 15:20:15,594 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:20:15,595 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 163.6MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:20:15,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.20ms. Allocated memory is still 163.6MB. Free memory was 90.4MB in the beginning and 72.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-01-26 15:20:15,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.42ms. Allocated memory is still 163.6MB. Free memory was 72.8MB in the beginning and 134.9MB in the end (delta: -62.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-01-26 15:20:15,595 INFO L158 Benchmark]: Boogie Preprocessor took 38.09ms. Allocated memory is still 163.6MB. Free memory was 134.3MB in the beginning and 132.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:20:15,595 INFO L158 Benchmark]: RCFGBuilder took 558.64ms. Allocated memory is still 163.6MB. Free memory was 132.2MB in the beginning and 92.3MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-01-26 15:20:15,596 INFO L158 Benchmark]: TraceAbstraction took 26137.67ms. Allocated memory was 163.6MB in the beginning and 14.6GB in the end (delta: 14.4GB). Free memory was 91.5MB in the beginning and 12.2GB in the end (delta: -12.1GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. [2024-01-26 15:20:15,597 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 163.6MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 163.6MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.20ms. Allocated memory is still 163.6MB. Free memory was 90.4MB in the beginning and 72.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.42ms. Allocated memory is still 163.6MB. Free memory was 72.8MB in the beginning and 134.9MB in the end (delta: -62.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.09ms. Allocated memory is still 163.6MB. Free memory was 134.3MB in the beginning and 132.2MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 558.64ms. Allocated memory is still 163.6MB. Free memory was 132.2MB in the beginning and 92.3MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 26137.67ms. Allocated memory was 163.6MB in the beginning and 14.6GB in the end (delta: 14.4GB). Free memory was 91.5MB in the beginning and 12.2GB in the end (delta: -12.1GB). Peak memory consumption was 2.3GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 38]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L35] 0 unsigned int x1, x2, x3, x4, n; [L82] 0 pthread_t t1, t2, t3, t4; VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,CastExpression[ACSLType[long long],IdentifierExpression[x1]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHMINUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,BinaryExpression[ARITHMINUS,IntegerLiteral[0LL],CastExpression[ACSLType[long long],IdentifierExpression[x1]]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPGEQ,BinaryExpression[ARITHPLUS,CastExpression[ACSLType[long long],IdentifierExpression[x1]],CastExpression[ACSLType[long long],IdentifierExpression[x3]]],IntegerLiteral[0LL]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=0, x2=0, x3=0, x4=0] [L85] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x3],IntegerLiteral[0U]]]] [L85] 0 x1 = __VERIFIER_nondet_uint() [L86] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x3],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x2=0, x3=0, x4=0] [L86] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x2=0, x3=0, x4=0] [L86] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x2=0, x3=0, x4=0] [L86] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] [L86] 0 x2 = __VERIFIER_nondet_uint() [L87] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x3=0, x4=0] [L87] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x3=0, x4=0] [L87] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x3],IntegerLiteral[0U]]]] [L87] 0 x3 = __VERIFIER_nondet_uint() [L88] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [n=0, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x4=0] [L88] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x4],IntegerLiteral[0U]]]] [L88] 0 x4 = __VERIFIER_nondet_uint() [L89] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] [L89] 0 n = __VERIFIER_nondet_uint() [L92] CALL 0 assume_abort_if_not( x1 == x2 && x1 > 0 && x3 == x4 && x3 > 0 ) [L32] COND FALSE 0 !(!cond) [L92] RET 0 assume_abort_if_not( x1 == x2 && x1 > 0 && x3 == x4 && x3 > 0 ) [L94] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, t1={5:0}, t2={3:0}, t3={6:0}, t4={7:0}, x1=1, x2=1, x3=1, x4=1] [L38] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] VAL [_argptr={0:0}, _argptr={0:0}, x1=1, x2=1, x3=1, x4=1] [L38] COND FALSE 1 !(x1 < n) VAL [_argptr={0:0}, _argptr={0:0}, n=1, x1=1, x2=1, x3=1, x4=1] [L38] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[n],IntegerLiteral[0U]]]] VAL [_argptr={0:0}, _argptr={0:0}, n=1, x1=1, x2=1, x3=1, x4=1] - UnprovableResult [Line: 38]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 39]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 40]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 61]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 104]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 97]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 96]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 95]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 202 locations, 82 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 26.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 25.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 349 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 247 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 866 IncrementalHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 24 mSDtfsCounter, 866 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-26 15:20:15,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE