./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 59af5db6 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-59af5db-m [2024-02-02 09:18:52,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:18:52,587 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:18:52,594 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:18:52,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:18:52,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:18:52,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:18:52,632 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:18:52,633 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:18:52,640 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:18:52,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:18:52,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:18:52,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:18:52,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:18:52,644 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:18:52,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:18:52,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:18:52,645 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:18:52,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:18:52,646 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:18:52,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:18:52,647 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:18:52,647 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:18:52,647 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:18:52,647 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:18:52,648 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:18:52,648 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:18:52,648 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:18:52,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:18:52,649 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:18:52,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:18:52,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:18:52,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:18:52,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:18:52,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:18:52,652 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:18:52,652 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:18:52,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:18:52,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:18:52,653 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:18:52,653 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:18:52,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:18:52,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:18:52,654 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:18:52,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:18:52,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:18:52,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:18:52,962 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:18:52,962 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:18:52,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-02-02 09:18:54,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:18:54,356 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:18:54,357 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-02-02 09:18:54,364 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2107ca01/811465aae59d49d6a5d3e13b5197f6ab/FLAG293a06a40 [2024-02-02 09:18:54,381 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2107ca01/811465aae59d49d6a5d3e13b5197f6ab [2024-02-02 09:18:54,383 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:18:54,384 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:18:54,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml [2024-02-02 09:18:54,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:18:54,497 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:18:54,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:18:54,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:18:54,514 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:18:54,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:18:54" (1/2) ... [2024-02-02 09:18:54,520 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff97347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:54, skipping insertion in model container [2024-02-02 09:18:54,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:18:54" (1/2) ... [2024-02-02 09:18:54,522 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@141ec477 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:54, skipping insertion in model container [2024-02-02 09:18:54,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:18:54" (2/2) ... [2024-02-02 09:18:54,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff97347 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54, skipping insertion in model container [2024-02-02 09:18:54,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:18:54" (2/2) ... [2024-02-02 09:18:54,523 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:18:54,551 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:18:54,552 INFO L101 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,553 INFO L101 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,553 INFO L101 nessWitnessExtractor]: Loop invariant at [L38-L46] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,553 INFO L101 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,553 INFO L101 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,554 INFO L101 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,555 INFO L101 nessWitnessExtractor]: Loop invariant at [L80-L88] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,555 INFO L101 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,555 INFO L101 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,555 INFO L101 nessWitnessExtractor]: Location invariant before [L101-L101] n == 0U [2024-02-02 09:18:54,555 INFO L101 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,555 INFO L101 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,556 INFO L101 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,556 INFO L101 nessWitnessExtractor]: Location invariant before [L43-L43] (n == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:18:54,556 INFO L101 nessWitnessExtractor]: Loop invariant at [L66-L74] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,556 INFO L101 nessWitnessExtractor]: Location invariant before [L99-L99] ((x3 == 0U) && (x4 == 0U)) && (n == 0U) [2024-02-02 09:18:54,556 INFO L101 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,557 INFO L101 nessWitnessExtractor]: Location invariant before [L98-L98] (((x2 == 0U) && (x3 == 0U)) && (x4 == 0U)) && (n == 0U) [2024-02-02 09:18:54,557 INFO L101 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,557 INFO L101 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,557 INFO L101 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,558 INFO L101 nessWitnessExtractor]: Location invariant before [L100-L100] (x4 == 0U) && (n == 0U) [2024-02-02 09:18:54,558 INFO L101 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,558 INFO L101 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,558 INFO L101 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,558 INFO L101 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,559 INFO L101 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,559 INFO L101 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,559 INFO L101 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,559 INFO L101 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,559 INFO L101 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,559 INFO L101 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,560 INFO L101 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,560 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,560 INFO L101 nessWitnessExtractor]: Loop invariant at [L52-L60] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,560 INFO L101 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,560 INFO L101 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,561 INFO L101 nessWitnessExtractor]: Location invariant before [L87-L87] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,562 INFO L101 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) [2024-02-02 09:18:54,562 INFO L101 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,563 INFO L101 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-02-02 09:18:54,592 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:18:54,764 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] [2024-02-02 09:18:54,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:18:54,777 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 [2024-02-02 09:18:54,862 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] [2024-02-02 09:18:54,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:18:54,891 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:18:54,893 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54 WrapperNode [2024-02-02 09:18:54,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:18:54,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:18:54,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:18:54,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:18:54,902 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 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:54,923 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 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:54,960 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2024-02-02 09:18:54,962 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:18:54,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:18:54,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:18:54,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:18:54,973 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:54,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:54,987 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:55,010 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]. [2024-02-02 09:18:55,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:55,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:55,032 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:55,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:55,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:55,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:55,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:18:55,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:18:55,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:18:55,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:18:55,061 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54" (1/1) ... [2024-02-02 09:18:55,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:18:55,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:18:55,102 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) [2024-02-02 09:18:55,126 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 [2024-02-02 09:18:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:18:55,143 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:18:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:18:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:18:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:18:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-02 09:18:55,144 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-02 09:18:55,144 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-02 09:18:55,145 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-02 09:18:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:18:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:18:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:18:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:18:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-02 09:18:55,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:18:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:18:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:18:55,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:18:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:18:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-02 09:18:55,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:18:55,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:18:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:18:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:18:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:18:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:18:55,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-02 09:18:55,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:18:55,150 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:18:55,283 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:18:55,286 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:18:55,723 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:18:55,724 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:18:55,860 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:18:55,863 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-02-02 09:18:55,864 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:18:55 BoogieIcfgContainer [2024-02-02 09:18:55,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:18:55,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:18:55,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:18:55,872 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:18:55,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:18:54" (1/4) ... [2024-02-02 09:18:55,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b64647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:18:55, skipping insertion in model container [2024-02-02 09:18:55,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:18:54" (2/4) ... [2024-02-02 09:18:55,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b64647 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:18:55, skipping insertion in model container [2024-02-02 09:18:55,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:54" (3/4) ... [2024-02-02 09:18:55,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b64647 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:18:55, skipping insertion in model container [2024-02-02 09:18:55,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:18:55" (4/4) ... [2024-02-02 09:18:55,874 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-02-02 09:18:55,890 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:18:55,890 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2024-02-02 09:18:55,890 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:18:55,997 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-02-02 09:18:56,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 125 transitions, 278 flow [2024-02-02 09:18:56,115 INFO L124 PetriNetUnfolderBase]: 4/121 cut-off events. [2024-02-02 09:18:56,115 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-02-02 09:18:56,121 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. [2024-02-02 09:18:56,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 125 transitions, 278 flow [2024-02-02 09:18:56,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 120 transitions, 264 flow [2024-02-02 09:18:56,146 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:18:56,153 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;@52c8f2ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:18:56,154 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2024-02-02 09:18:56,157 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:18:56,157 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:18:56,157 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:18:56,158 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:18:56,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:18:56,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (and 87 more)] === [2024-02-02 09:18:56,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:18:56,164 INFO L85 PathProgramCache]: Analyzing trace with hash 15264, now seen corresponding path program 1 times [2024-02-02 09:18:56,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:18:56,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046895221] [2024-02-02 09:18:56,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:18:56,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:18:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:18:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:18:56,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:18:56,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046895221] [2024-02-02 09:18:56,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046895221] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:18:56,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:18:56,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:18:56,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37226374] [2024-02-02 09:18:56,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:18:56,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:18:56,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:18:56,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:18:56,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:18:56,802 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 125 [2024-02-02 09:18:56,806 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) [2024-02-02 09:18:56,806 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:18:56,806 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 125 [2024-02-02 09:18:56,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:19:11,527 INFO L124 PetriNetUnfolderBase]: 131597/206640 cut-off events. [2024-02-02 09:19:11,527 INFO L125 PetriNetUnfolderBase]: For 5558/5558 co-relation queries the response was YES. [2024-02-02 09:19:12,405 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. [2024-02-02 09:19:13,650 INFO L140 encePairwiseOnDemand]: 122/125 looper letters, 64 selfloop transitions, 2 changer transitions 0/119 dead transitions. [2024-02-02 09:19:13,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 119 transitions, 394 flow [2024-02-02 09:19:13,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:19:13,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:19:13,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 238 transitions. [2024-02-02 09:19:13,663 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6346666666666667 [2024-02-02 09:19:13,665 INFO L175 Difference]: Start difference. First operand has 129 places, 120 transitions, 264 flow. Second operand 3 states and 238 transitions. [2024-02-02 09:19:13,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 119 transitions, 394 flow [2024-02-02 09:19:13,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 119 transitions, 378 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-02-02 09:19:13,761 INFO L231 Difference]: Finished difference. Result has 122 places, 119 transitions, 250 flow [2024-02-02 09:19:13,763 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} [2024-02-02 09:19:13,768 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -7 predicate places. [2024-02-02 09:19:13,774 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 119 transitions, 250 flow [2024-02-02 09:19:13,775 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) [2024-02-02 09:19:13,775 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:19:13,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:19:13,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:19:13,776 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (and 87 more)] === [2024-02-02 09:19:13,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:19:13,777 INFO L85 PathProgramCache]: Analyzing trace with hash 473703, now seen corresponding path program 1 times [2024-02-02 09:19:13,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:19:13,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721277128] [2024-02-02 09:19:13,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:19:13,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:19:13,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:19:13,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:19:13,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:19:13,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721277128] [2024-02-02 09:19:13,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721277128] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:19:13,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:19:13,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:19:13,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583574942] [2024-02-02 09:19:13,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:19:13,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:19:13,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:19:13,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:19:13,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:19:13,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 125 [2024-02-02 09:19:13,912 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) [2024-02-02 09:19:13,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:19:13,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 125 [2024-02-02 09:19:13,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:19:25,581 INFO L124 PetriNetUnfolderBase]: 131597/206639 cut-off events. [2024-02-02 09:19:25,581 INFO L125 PetriNetUnfolderBase]: For 1344/1344 co-relation queries the response was YES. [2024-02-02 09:19:26,049 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. [2024-02-02 09:19:27,408 INFO L140 encePairwiseOnDemand]: 122/125 looper letters, 63 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-02-02 09:19:27,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 118 transitions, 378 flow [2024-02-02 09:19:27,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:19:27,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:19:27,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2024-02-02 09:19:27,412 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.64 [2024-02-02 09:19:27,412 INFO L175 Difference]: Start difference. First operand has 122 places, 119 transitions, 250 flow. Second operand 3 states and 240 transitions. [2024-02-02 09:19:27,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 118 transitions, 378 flow [2024-02-02 09:19:27,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 118 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:19:27,415 INFO L231 Difference]: Finished difference. Result has 121 places, 118 transitions, 248 flow [2024-02-02 09:19:27,415 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} [2024-02-02 09:19:27,415 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -8 predicate places. [2024-02-02 09:19:27,416 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 118 transitions, 248 flow [2024-02-02 09:19:27,416 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) [2024-02-02 09:19:27,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:19:27,416 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-02-02 09:19:27,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:19:27,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (and 87 more)] === [2024-02-02 09:19:27,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:19:27,417 INFO L85 PathProgramCache]: Analyzing trace with hash 14685319, now seen corresponding path program 1 times [2024-02-02 09:19:27,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:19:27,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917855207] [2024-02-02 09:19:27,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:19:27,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:19:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:19:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:19:27,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:19:27,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917855207] [2024-02-02 09:19:27,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917855207] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:19:27,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:19:27,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:19:27,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822447720] [2024-02-02 09:19:27,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:19:27,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:19:27,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:19:27,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:19:27,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:19:27,492 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 125 [2024-02-02 09:19:27,493 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) [2024-02-02 09:19:27,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:19:27,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 125 [2024-02-02 09:19:27,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:19:38,564 INFO L124 PetriNetUnfolderBase]: 131597/206638 cut-off events. [2024-02-02 09:19:38,564 INFO L125 PetriNetUnfolderBase]: For 1344/1344 co-relation queries the response was YES. [2024-02-02 09:19:38,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 374781 conditions, 206638 events. 131597/206638 cut-off events. For 1344/1344 co-relation queries the response was YES. Maximal size of possible extension queue 7382. Compared 1925413 event pairs, 107280 based on Foata normal form. 0/172899 useless extension candidates. Maximal degree in co-relation 374770. Up to 166672 conditions per place.