./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp2x9.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-exp2x9.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 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-exp2x9.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.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-3d25acf-m [2024-01-30 14:22:41,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:22:41,664 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:22:41,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:22:41,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:22:41,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:22:41,699 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:22:41,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:22:41,700 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:22:41,703 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:22:41,703 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:22:41,703 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:22:41,704 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:22:41,705 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:22:41,705 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:22:41,705 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:22:41,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:22:41,706 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:22:41,706 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:22:41,706 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:22:41,706 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:22:41,707 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:22:41,707 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:22:41,707 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:22:41,707 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:22:41,707 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:22:41,708 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:22:41,708 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:22:41,708 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:22:41,708 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:22:41,709 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:22:41,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:22:41,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:22:41,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:22:41,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:22:41,710 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:22:41,710 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:22:41,710 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:22:41,711 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:22:41,711 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:22:41,711 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:22:41,711 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:22:41,711 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:22:41,712 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:22:41,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:22:41,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:22:41,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:22:41,945 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:22:41,945 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:22:41,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-30 14:22:42,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:22:43,107 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:22:43,107 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-30 14:22:43,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e37334a94/bb69f50126d04a80b448496784a699d9/FLAGdf4ef21b1 [2024-01-30 14:22:43,127 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e37334a94/bb69f50126d04a80b448496784a699d9 [2024-01-30 14:22:43,132 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:22:43,132 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:22:43,135 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml [2024-01-30 14:22:43,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:22:43,239 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:22:43,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:22:43,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:22:43,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:22:43,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:22:43" (1/2) ... [2024-01-30 14:22:43,246 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e70643 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:43, skipping insertion in model container [2024-01-30 14:22:43,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:22:43" (1/2) ... [2024-01-30 14:22:43,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4df29a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:43, skipping insertion in model container [2024-01-30 14:22:43,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:22:43" (2/2) ... [2024-01-30 14:22:43,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e70643 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43, skipping insertion in model container [2024-01-30 14:22:43,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:22:43" (2/2) ... [2024-01-30 14:22:43,249 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:22:43,279 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:22:43,280 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,281 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,281 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,281 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,281 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,281 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,281 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,282 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,282 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L46] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,282 INFO L98 nessWitnessExtractor]: Loop invariant at [L80-L88] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,282 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,282 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,282 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] n == 0U [2024-01-30 14:22:43,282 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,283 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,283 INFO L98 nessWitnessExtractor]: Loop invariant at [L66-L74] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,283 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,283 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,283 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,283 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,283 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,284 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,284 INFO L98 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,284 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (n == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:22:43,284 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,284 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,285 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,285 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] (((x2 == 0U) && (x3 == 0U)) && (x4 == 0U)) && (n == 0U) [2024-01-30 14:22:43,285 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,285 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,285 INFO L98 nessWitnessExtractor]: Loop invariant at [L52-L60] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,285 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (((((((((0LL - (long long )x1) + (long long )x3 >= 0LL) && ((long long )x1 + (long long )x3 >= 0LL)) && ((0LL - (long long )x1) - (long long )x3 >= 0LL)) && ((long long )x1 - (long long )x3 >= 0LL)) && (x1 == 0U)) && (x2 == 0U)) && (x3 == 0U)) && (x4 == 0U)) && (n == 0U) [2024-01-30 14:22:43,285 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (x4 == 0U) && (n == 0U) [2024-01-30 14:22:43,285 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,286 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,286 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,286 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,286 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,303 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,307 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] ((x3 == 0U) && (x4 == 0U)) && (n == 0U) [2024-01-30 14:22:43,307 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-30 14:22:43,329 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:22:43,473 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-exp2x9.wvr.c[2721,2734] [2024-01-30 14:22:43,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:22:43,483 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-30 14:22:43,536 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-exp2x9.wvr.c[2721,2734] [2024-01-30 14:22:43,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:22:43,549 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:22:43,549 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43 WrapperNode [2024-01-30 14:22:43,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:22:43,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:22:43,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:22:43,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:22:43,556 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 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,562 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 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,594 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2024-01-30 14:22:43,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:22:43,599 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:22:43,599 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:22:43,599 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:22:43,607 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,650 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]. [2024-01-30 14:22:43,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,680 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,686 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:22:43,693 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:22:43,693 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:22:43,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:22:43,694 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43" (1/1) ... [2024-01-30 14:22:43,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:22:43,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:22:43,720 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) [2024-01-30 14:22:43,722 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 [2024-01-30 14:22:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:22:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:22:43,758 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:22:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:22:43,758 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:22:43,758 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-30 14:22:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-30 14:22:43,759 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:22:43,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-30 14:22:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:22:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:22:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:22:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:22:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:22:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:22:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-30 14:22:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:22:43,762 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:22:43,864 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:22:43,866 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:22:44,157 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:22:44,157 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:22:44,255 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:22:44,255 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-30 14:22:44,256 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:22:44 BoogieIcfgContainer [2024-01-30 14:22:44,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:22:44,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:22:44,258 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:22:44,260 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:22:44,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:22:43" (1/4) ... [2024-01-30 14:22:44,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676ef930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:22:44, skipping insertion in model container [2024-01-30 14:22:44,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:22:43" (2/4) ... [2024-01-30 14:22:44,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676ef930 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:22:44, skipping insertion in model container [2024-01-30 14:22:44,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:43" (3/4) ... [2024-01-30 14:22:44,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@676ef930 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:22:44, skipping insertion in model container [2024-01-30 14:22:44,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:22:44" (4/4) ... [2024-01-30 14:22:44,263 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-01-30 14:22:44,276 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:22:44,276 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2024-01-30 14:22:44,277 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:22:44,376 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-30 14:22:44,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 125 transitions, 278 flow [2024-01-30 14:22:44,482 INFO L124 PetriNetUnfolderBase]: 4/121 cut-off events. [2024-01-30 14:22:44,482 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-30 14:22:44,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 121 events. 4/121 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 462 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2024-01-30 14:22:44,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 125 transitions, 278 flow [2024-01-30 14:22:44,496 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 120 transitions, 264 flow [2024-01-30 14:22:44,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:22:44,516 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;@31654001, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:22:44,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2024-01-30 14:22:44,519 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:22:44,520 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:22:44,520 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:22:44,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:22:44,520 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:22:44,521 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (and 87 more)] === [2024-01-30 14:22:44,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:22:44,525 INFO L85 PathProgramCache]: Analyzing trace with hash 15264, now seen corresponding path program 1 times [2024-01-30 14:22:44,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:22:44,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060672345] [2024-01-30 14:22:44,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:22:44,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:22:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:22:44,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:22:44,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:22:44,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060672345] [2024-01-30 14:22:44,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060672345] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:22:44,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:22:44,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:22:44,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187996217] [2024-01-30 14:22:44,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:22:44,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:22:44,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:22:44,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:22:44,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:22:44,989 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 125 [2024-01-30 14:22:44,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 120 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2024-01-30 14:22:44,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:22:44,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 125 [2024-01-30 14:22:44,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:22:57,003 INFO L124 PetriNetUnfolderBase]: 131597/206640 cut-off events. [2024-01-30 14:22:57,004 INFO L125 PetriNetUnfolderBase]: For 5558/5558 co-relation queries the response was YES. [2024-01-30 14:22:57,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377714 conditions, 206640 events. 131597/206640 cut-off events. For 5558/5558 co-relation queries the response was YES. Maximal size of possible extension queue 7382. Compared 1925532 event pairs, 107280 based on Foata normal form. 0/172899 useless extension candidates. Maximal degree in co-relation 349843. Up to 166676 conditions per place. [2024-01-30 14:22:58,696 INFO L140 encePairwiseOnDemand]: 122/125 looper letters, 64 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2024-01-30 14:22:58,697 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 119 transitions, 394 flow [2024-01-30 14:22:58,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:22:58,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:22:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2024-01-30 14:22:58,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6346666666666667 [2024-01-30 14:22:58,709 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 264 flow. Second operand 3 states and 238 transitions. [2024-01-30 14:22:58,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 119 transitions, 394 flow [2024-01-30 14:22:58,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 119 transitions, 378 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-30 14:22:58,768 INFO L231 Difference]: Finished difference. Result has 122 places, 119 transitions, 250 flow [2024-01-30 14:22:58,770 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, 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} [2024-01-30 14:22:58,775 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -7 predicate places. [2024-01-30 14:22:58,780 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 119 transitions, 250 flow [2024-01-30 14:22:58,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2024-01-30 14:22:58,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:22:58,781 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:22:58,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:22:58,782 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (and 87 more)] === [2024-01-30 14:22:58,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:22:58,782 INFO L85 PathProgramCache]: Analyzing trace with hash 473703, now seen corresponding path program 1 times [2024-01-30 14:22:58,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:22:58,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485644074] [2024-01-30 14:22:58,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:22:58,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:22:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:22:58,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:22:58,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:22:58,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485644074] [2024-01-30 14:22:58,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485644074] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:22:58,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:22:58,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:22:58,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147481260] [2024-01-30 14:22:58,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:22:58,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:22:58,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:22:58,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:22:58,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:22:58,886 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 125 [2024-01-30 14:22:58,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 119 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2024-01-30 14:22:58,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:22:58,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 125 [2024-01-30 14:22:58,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:23:08,890 INFO L124 PetriNetUnfolderBase]: 131597/206639 cut-off events. [2024-01-30 14:23:08,890 INFO L125 PetriNetUnfolderBase]: For 1344/1344 co-relation queries the response was YES. [2024-01-30 14:23:09,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374783 conditions, 206639 events. 131597/206639 cut-off events. For 1344/1344 co-relation queries the response was YES. Maximal size of possible extension queue 7382. Compared 1925757 event pairs, 107280 based on Foata normal form. 0/172899 useless extension candidates. Maximal degree in co-relation 374774. Up to 166674 conditions per place. [2024-01-30 14:23:10,240 INFO L140 encePairwiseOnDemand]: 122/125 looper letters, 63 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-01-30 14:23:10,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 118 transitions, 378 flow [2024-01-30 14:23:10,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:23:10,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:23:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2024-01-30 14:23:10,242 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.64 [2024-01-30 14:23:10,242 INFO L175 Difference]: Start difference. First operand has 122 places, 119 transitions, 250 flow. Second operand 3 states and 240 transitions. [2024-01-30 14:23:10,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 118 transitions, 378 flow [2024-01-30 14:23:10,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 118 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:23:10,244 INFO L231 Difference]: Finished difference. Result has 121 places, 118 transitions, 248 flow [2024-01-30 14:23:10,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=121, PETRI_TRANSITIONS=118} [2024-01-30 14:23:10,245 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -8 predicate places. [2024-01-30 14:23:10,245 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 118 transitions, 248 flow [2024-01-30 14:23:10,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 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) [2024-01-30 14:23:10,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:10,246 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:23:10,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:23:10,246 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (and 87 more)] === [2024-01-30 14:23:10,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:10,246 INFO L85 PathProgramCache]: Analyzing trace with hash 14685319, now seen corresponding path program 1 times [2024-01-30 14:23:10,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:10,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687834087] [2024-01-30 14:23:10,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:10,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:23:10,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:23:10,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:23:10,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687834087] [2024-01-30 14:23:10,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687834087] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:23:10,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:23:10,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:23:10,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788380575] [2024-01-30 14:23:10,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:23:10,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:23:10,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:23:10,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:23:10,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:23:10,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 125 [2024-01-30 14:23:10,327 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 118 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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) [2024-01-30 14:23:10,327 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:23:10,327 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 125 [2024-01-30 14:23:10,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand