./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d8006e4b 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/spaghetti.wvr.c ./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/spaghetti.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-d8006e4-m [2024-02-05 10:36:21,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-05 10:36:21,490 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-05 10:36:21,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-05 10:36:21,496 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-05 10:36:21,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-05 10:36:21,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-05 10:36:21,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-05 10:36:21,518 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-05 10:36:21,522 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-05 10:36:21,522 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-05 10:36:21,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-05 10:36:21,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-05 10:36:21,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-05 10:36:21,526 INFO L153 SettingsManager]: * Use SBE=true [2024-02-05 10:36:21,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-05 10:36:21,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-05 10:36:21,527 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-05 10:36:21,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-05 10:36:21,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-05 10:36:21,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-05 10:36:21,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-05 10:36:21,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-05 10:36:21,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-05 10:36:21,529 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-05 10:36:21,529 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-05 10:36:21,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-05 10:36:21,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-05 10:36:21,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-05 10:36:21,530 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-05 10:36:21,531 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-05 10:36:21,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-05 10:36:21,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:36:21,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-05 10:36:21,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-05 10:36:21,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-05 10:36:21,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-05 10:36:21,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-05 10:36:21,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-05 10:36:21,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-05 10:36:21,534 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-05 10:36:21,534 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-05 10:36:21,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-05 10:36:21,534 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-05 10:36:21,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-05 10:36:21,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-05 10:36:21,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-05 10:36:21,855 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-05 10:36:21,856 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-05 10:36:21,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-01-24_13-31-21.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml [2024-02-05 10:36:22,057 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-05 10:36:22,057 INFO L274 PluginConnector]: CDTParser initialized [2024-02-05 10:36:22,058 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-02-05 10:36:23,235 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-05 10:36:23,389 INFO L384 CDTParser]: Found 1 translation units. [2024-02-05 10:36:23,404 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-02-05 10:36:23,411 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c037cf736/398fd8c81f254466ab21846399ac186e/FLAG95aea1941 [2024-02-05 10:36:23,427 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c037cf736/398fd8c81f254466ab21846399ac186e [2024-02-05 10:36:23,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-05 10:36:23,429 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-05 10:36:23,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-05 10:36:23,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-05 10:36:23,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-05 10:36:23,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:36:22" (1/2) ... [2024-02-05 10:36:23,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93f84e4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:36:23, skipping insertion in model container [2024-02-05 10:36:23,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:36:22" (1/2) ... [2024-02-05 10:36:23,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4cec07de and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 05.02 10:36:23, skipping insertion in model container [2024-02-05 10:36:23,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:36:23" (2/2) ... [2024-02-05 10:36:23,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93f84e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23, skipping insertion in model container [2024-02-05 10:36:23,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:36:23" (2/2) ... [2024-02-05 10:36:23,442 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-05 10:36:23,481 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-05 10:36:23,482 INFO L101 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,483 INFO L101 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,483 INFO L101 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,483 INFO L101 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,483 INFO L101 nessWitnessExtractor]: Loop invariant at [L42-L42] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,483 INFO L101 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,483 INFO L101 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,483 INFO L101 nessWitnessExtractor]: Location invariant before [L80-L80] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,483 INFO L101 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,484 INFO L101 nessWitnessExtractor]: Location invariant before [L106-L106] (x_1 == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-05 10:36:23,484 INFO L101 nessWitnessExtractor]: Location invariant before [L105-L105] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,484 INFO L101 nessWitnessExtractor]: Location invariant before [L101-L101] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,484 INFO L101 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,484 INFO L101 nessWitnessExtractor]: Location invariant before [L64-L64] (x_0 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-05 10:36:23,484 INFO L101 nessWitnessExtractor]: Loop invariant at [L77-L77] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,485 INFO L101 nessWitnessExtractor]: Location invariant before [L51-L51] (x_0 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-05 10:36:23,485 INFO L101 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,485 INFO L101 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,485 INFO L101 nessWitnessExtractor]: Location invariant before [L89-L89] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,485 INFO L101 nessWitnessExtractor]: Location invariant before [L98-L98] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,485 INFO L101 nessWitnessExtractor]: Location invariant before [L92-L92] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,486 INFO L101 nessWitnessExtractor]: Location invariant before [L97-L97] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,486 INFO L101 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,486 INFO L101 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,486 INFO L101 nessWitnessExtractor]: Location invariant before [L99-L99] (x_1 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-05 10:36:23,486 INFO L101 nessWitnessExtractor]: Loop invariant at [L96-L96] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,487 INFO L101 nessWitnessExtractor]: Location invariant before [L71-L71] (x_0 == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-05 10:36:23,487 INFO L101 nessWitnessExtractor]: Location invariant before [L86-L86] (x_1 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-05 10:36:23,487 INFO L101 nessWitnessExtractor]: Location invariant before [L114-L114] (x_0 == 0U) && (x_1 == 0U) [2024-02-05 10:36:23,487 INFO L101 nessWitnessExtractor]: Location invariant before [L115-L115] x_1 == 0U [2024-02-05 10:36:23,487 INFO L101 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,487 INFO L101 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,487 INFO L101 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,488 INFO L101 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,488 INFO L101 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,488 INFO L101 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,488 INFO L101 nessWitnessExtractor]: Location invariant before [L55-L55] (x_0 == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-05 10:36:23,489 INFO L101 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,490 INFO L101 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,490 INFO L101 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,490 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,490 INFO L101 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,490 INFO L101 nessWitnessExtractor]: Location invariant before [L78-L78] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,491 INFO L101 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,491 INFO L101 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,491 INFO L101 nessWitnessExtractor]: Location invariant before [L102-L102] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,491 INFO L101 nessWitnessExtractor]: Loop invariant at [L61-L61] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,491 INFO L101 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,491 INFO L101 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,492 INFO L101 nessWitnessExtractor]: Location invariant before [L108-L108] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,492 INFO L101 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-02-05 10:36:23,492 INFO L101 nessWitnessExtractor]: Location invariant before [L90-L90] (x_1 == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-05 10:36:23,516 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-02-05 10:36:23,688 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/spaghetti.wvr.c[3273,3286] [2024-02-05 10:36:23,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:36:23,698 INFO L204 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-05 10:36:23,816 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/spaghetti.wvr.c[3273,3286] [2024-02-05 10:36:23,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-05 10:36:23,838 INFO L208 MainTranslator]: Completed translation [2024-02-05 10:36:23,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23 WrapperNode [2024-02-05 10:36:23,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-05 10:36:23,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-05 10:36:23,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-05 10:36:23,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-05 10:36:23,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:23,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:23,903 INFO L138 Inliner]: procedures = 23, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2024-02-05 10:36:23,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-05 10:36:23,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-05 10:36:23,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-05 10:36:23,906 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-05 10:36:23,916 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:23,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:23,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:23,956 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]. [2024-02-05 10:36:23,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:23,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:23,974 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:23,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:23,993 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:23,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:23,997 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-05 10:36:23,998 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-05 10:36:24,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-05 10:36:24,005 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-05 10:36:24,006 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (1/1) ... [2024-02-05 10:36:24,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-05 10:36:24,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-05 10:36:24,050 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) [2024-02-05 10:36:24,061 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 [2024-02-05 10:36:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-05 10:36:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-05 10:36:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-05 10:36:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-05 10:36:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-05 10:36:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-05 10:36:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-05 10:36:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-05 10:36:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-05 10:36:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-05 10:36:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-05 10:36:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-05 10:36:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-05 10:36:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-05 10:36:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-05 10:36:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-05 10:36:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-05 10:36:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-05 10:36:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-05 10:36:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-05 10:36:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-05 10:36:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-05 10:36:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-05 10:36:24,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-05 10:36:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-05 10:36:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-05 10:36:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-05 10:36:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-05 10:36:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-05 10:36:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-05 10:36:24,089 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-05 10:36:24,199 INFO L244 CfgBuilder]: Building ICFG [2024-02-05 10:36:24,202 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-05 10:36:24,611 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-05 10:36:24,611 INFO L293 CfgBuilder]: Performing block encoding [2024-02-05 10:36:24,847 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-05 10:36:24,848 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-02-05 10:36:24,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:36:24 BoogieIcfgContainer [2024-02-05 10:36:24,848 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-05 10:36:24,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-05 10:36:24,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-05 10:36:24,854 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-05 10:36:24,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 05.02 10:36:22" (1/4) ... [2024-02-05 10:36:24,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54097ec6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 05.02 10:36:24, skipping insertion in model container [2024-02-05 10:36:24,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:36:23" (2/4) ... [2024-02-05 10:36:24,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54097ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:36:24, skipping insertion in model container [2024-02-05 10:36:24,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:36:23" (3/4) ... [2024-02-05 10:36:24,858 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54097ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:36:24, skipping insertion in model container [2024-02-05 10:36:24,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.02 10:36:24" (4/4) ... [2024-02-05 10:36:24,860 INFO L112 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2024-02-05 10:36:24,880 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-05 10:36:24,881 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2024-02-05 10:36:24,881 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-05 10:36:24,992 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-02-05 10:36:25,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 129 transitions, 286 flow [2024-02-05 10:36:25,153 INFO L124 PetriNetUnfolderBase]: 8/125 cut-off events. [2024-02-05 10:36:25,153 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-02-05 10:36:25,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 125 events. 8/125 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 528 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 115. Up to 2 conditions per place. [2024-02-05 10:36:25,163 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 129 transitions, 286 flow [2024-02-05 10:36:25,169 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 124 transitions, 272 flow [2024-02-05 10:36:25,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-05 10:36:25,185 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;@71da12c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-05 10:36:25,186 INFO L358 AbstractCegarLoop]: Starting to check reachability of 107 error locations. [2024-02-05 10:36:25,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-05 10:36:25,189 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-05 10:36:25,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-05 10:36:25,189 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:36:25,190 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-05 10:36:25,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 104 more)] === [2024-02-05 10:36:25,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:36:25,195 INFO L85 PathProgramCache]: Analyzing trace with hash 16575, now seen corresponding path program 1 times [2024-02-05 10:36:25,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:36:25,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684519114] [2024-02-05 10:36:25,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:36:25,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:36:25,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:36:25,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:36:25,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:36:25,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684519114] [2024-02-05 10:36:25,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684519114] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:36:25,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:36:25,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-05 10:36:25,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507179841] [2024-02-05 10:36:25,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:36:25,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:36:25,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:36:25,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:36:25,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:36:25,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 129 [2024-02-05 10:36:25,547 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 124 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-02-05 10:36:25,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:36:25,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 129 [2024-02-05 10:36:25,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:36:42,502 INFO L124 PetriNetUnfolderBase]: 163712/247801 cut-off events. [2024-02-05 10:36:42,503 INFO L125 PetriNetUnfolderBase]: For 6563/6563 co-relation queries the response was YES. [2024-02-05 10:36:42,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 465400 conditions, 247801 events. 163712/247801 cut-off events. For 6563/6563 co-relation queries the response was YES. Maximal size of possible extension queue 10930. Compared 2339696 event pairs, 148206 based on Foata normal form. 0/163372 useless extension candidates. Maximal degree in co-relation 436677. Up to 211833 conditions per place. [2024-02-05 10:36:44,413 INFO L140 encePairwiseOnDemand]: 108/129 looper letters, 62 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2024-02-05 10:36:44,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 105 transitions, 362 flow [2024-02-05 10:36:44,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:36:44,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:36:44,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-02-05 10:36:44,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5633074935400517 [2024-02-05 10:36:44,425 INFO L175 Difference]: Start difference. First operand has 129 places, 124 transitions, 272 flow. Second operand 3 states and 218 transitions. [2024-02-05 10:36:44,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 105 transitions, 362 flow [2024-02-05 10:36:44,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 346 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-02-05 10:36:44,657 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 222 flow [2024-02-05 10:36:44,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2024-02-05 10:36:44,661 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -21 predicate places. [2024-02-05 10:36:44,662 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 222 flow [2024-02-05 10:36:44,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2024-02-05 10:36:44,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:36:44,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-05 10:36:44,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-05 10:36:44,663 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 104 more)] === [2024-02-05 10:36:44,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:36:44,663 INFO L85 PathProgramCache]: Analyzing trace with hash 514365, now seen corresponding path program 1 times [2024-02-05 10:36:44,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:36:44,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044427227] [2024-02-05 10:36:44,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:36:44,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:36:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:36:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:36:44,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:36:44,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044427227] [2024-02-05 10:36:44,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044427227] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:36:44,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:36:44,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-05 10:36:44,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444325602] [2024-02-05 10:36:44,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:36:44,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-05 10:36:44,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:36:44,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-05 10:36:44,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-05 10:36:44,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 129 [2024-02-05 10:36:44,704 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 105 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2024-02-05 10:36:44,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:36:44,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 129 [2024-02-05 10:36:44,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-05 10:37:01,360 INFO L124 PetriNetUnfolderBase]: 182652/278980 cut-off events. [2024-02-05 10:37:01,361 INFO L125 PetriNetUnfolderBase]: For 1799/1799 co-relation queries the response was YES. [2024-02-05 10:37:01,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517973 conditions, 278980 events. 182652/278980 cut-off events. For 1799/1799 co-relation queries the response was YES. Maximal size of possible extension queue 11598. Compared 2682846 event pairs, 117726 based on Foata normal form. 0/185868 useless extension candidates. Maximal degree in co-relation 517964. Up to 174493 conditions per place. [2024-02-05 10:37:03,686 INFO L140 encePairwiseOnDemand]: 122/129 looper letters, 107 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2024-02-05 10:37:03,686 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 154 transitions, 549 flow [2024-02-05 10:37:03,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-05 10:37:03,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-05 10:37:03,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2024-02-05 10:37:03,689 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6511627906976745 [2024-02-05 10:37:03,689 INFO L175 Difference]: Start difference. First operand has 108 places, 105 transitions, 222 flow. Second operand 3 states and 252 transitions. [2024-02-05 10:37:03,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 154 transitions, 549 flow [2024-02-05 10:37:03,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 154 transitions, 545 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-05 10:37:03,692 INFO L231 Difference]: Finished difference. Result has 109 places, 108 transitions, 256 flow [2024-02-05 10:37:03,692 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=109, PETRI_TRANSITIONS=108} [2024-02-05 10:37:03,692 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -20 predicate places. [2024-02-05 10:37:03,693 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 108 transitions, 256 flow [2024-02-05 10:37:03,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 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) [2024-02-05 10:37:03,693 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-05 10:37:03,693 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-05 10:37:03,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-05 10:37:03,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 104 more)] === [2024-02-05 10:37:03,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-05 10:37:03,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1855716818, now seen corresponding path program 1 times [2024-02-05 10:37:03,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-05 10:37:03,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201002234] [2024-02-05 10:37:03,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-05 10:37:03,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-05 10:37:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-05 10:37:03,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-05 10:37:03,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-05 10:37:03,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201002234] [2024-02-05 10:37:03,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201002234] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-05 10:37:03,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-05 10:37:03,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-05 10:37:03,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111787724] [2024-02-05 10:37:03,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-05 10:37:03,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-05 10:37:03,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-05 10:37:03,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-05 10:37:03,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-05 10:37:03,793 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 129 [2024-02-05 10:37:03,794 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 108 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) [2024-02-05 10:37:03,794 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-05 10:37:03,794 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 129 [2024-02-05 10:37:03,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand