./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.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fced0e87 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.2023-12-19_14-39-08.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-wip.fs.extract-columns-fced0e8-m [2024-01-31 16:11:42,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-31 16:11:43,057 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-31 16:11:43,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-31 16:11:43,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-31 16:11:43,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-31 16:11:43,086 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-31 16:11:43,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-31 16:11:43,087 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-31 16:11:43,090 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-31 16:11:43,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-31 16:11:43,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-31 16:11:43,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-31 16:11:43,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-31 16:11:43,092 INFO L153 SettingsManager]: * Use SBE=true [2024-01-31 16:11:43,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-31 16:11:43,092 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-31 16:11:43,092 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-31 16:11:43,093 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-31 16:11:43,093 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-31 16:11:43,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-31 16:11:43,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-31 16:11:43,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-31 16:11:43,094 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-31 16:11:43,094 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-31 16:11:43,094 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-31 16:11:43,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-31 16:11:43,095 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-31 16:11:43,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-31 16:11:43,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-31 16:11:43,096 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-31 16:11:43,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-31 16:11:43,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:11:43,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-31 16:11:43,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-31 16:11:43,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-31 16:11:43,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-31 16:11:43,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-31 16:11:43,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-31 16:11:43,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-31 16:11:43,098 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-31 16:11:43,098 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-31 16:11:43,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-31 16:11:43,099 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-31 16:11:43,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-31 16:11:43,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-31 16:11:43,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-31 16:11:43,333 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-31 16:11:43,333 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-31 16:11:43,334 INFO L431 ainManager$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/spaghetti.wvr.yml/witness.yml [2024-01-31 16:11:43,428 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-31 16:11:43,428 INFO L274 PluginConnector]: CDTParser initialized [2024-01-31 16:11:43,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-01-31 16:11:44,378 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-31 16:11:44,522 INFO L384 CDTParser]: Found 1 translation units. [2024-01-31 16:11:44,522 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-01-31 16:11:44,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c09a3029a/1451f56b0d1343bea92b4fbe35b7f2da/FLAGf7cf945cd [2024-01-31 16:11:44,542 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c09a3029a/1451f56b0d1343bea92b4fbe35b7f2da [2024-01-31 16:11:44,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-31 16:11:44,543 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-31 16:11:44,546 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-31 16:11:44,546 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-31 16:11:44,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-31 16:11:44,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:11:43" (1/2) ... [2024-01-31 16:11:44,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5554c05a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:11:44, skipping insertion in model container [2024-01-31 16:11:44,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:11:43" (1/2) ... [2024-01-31 16:11:44,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7802b4fb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 31.01 04:11:44, skipping insertion in model container [2024-01-31 16:11:44,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:11:44" (2/2) ... [2024-01-31 16:11:44,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5554c05a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44, skipping insertion in model container [2024-01-31 16:11:44,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.01 04:11:44" (2/2) ... [2024-01-31 16:11:44,553 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-31 16:11:44,588 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-31 16:11:44,589 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,589 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,589 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,589 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,590 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,590 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,590 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,590 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,590 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,590 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (x_0 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:11:44,590 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,590 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,591 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (x_0 == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:11:44,591 INFO L98 nessWitnessExtractor]: Loop invariant at [L96-L96] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,591 INFO L98 nessWitnessExtractor]: Loop invariant at [L42-L42] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,591 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (x_1 == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:11:44,591 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (x_0 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:11:44,591 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,591 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] x_1 == 0U [2024-01-31 16:11:44,592 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] (x_1 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:11:44,592 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (x_0 == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:11:44,592 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,592 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,592 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,593 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] (x_0 == 0U) && (x_1 == 0U) [2024-01-31 16:11:44,593 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,593 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,593 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,593 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,593 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,593 INFO L98 nessWitnessExtractor]: Location invariant before [L80-L80] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,593 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,594 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,594 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,594 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] (x_1 == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:11:44,594 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,594 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,595 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,595 INFO L98 nessWitnessExtractor]: Loop invariant at [L77-L77] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,596 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,596 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,596 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,596 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,596 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,596 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (x_1 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-31 16:11:44,597 INFO L98 nessWitnessExtractor]: Location invariant before [L108-L108] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,597 INFO L98 nessWitnessExtractor]: Loop invariant at [L61-L61] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,597 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,597 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L105] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,597 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,597 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,598 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-31 16:11:44,615 INFO L179 MainTranslator]: Built tables and reachable declarations [2024-01-31 16:11:44,739 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] [2024-01-31 16:11:44,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:11:44,760 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 [2024-01-31 16:11:44,813 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] [2024-01-31 16:11:44,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-31 16:11:44,825 INFO L208 MainTranslator]: Completed translation [2024-01-31 16:11:44,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44 WrapperNode [2024-01-31 16:11:44,825 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-31 16:11:44,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-31 16:11:44,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-31 16:11:44,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-31 16:11:44,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,851 INFO L138 Inliner]: procedures = 23, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2024-01-31 16:11:44,851 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-31 16:11:44,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-31 16:11:44,852 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-31 16:11:44,852 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-31 16:11:44,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,862 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,876 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-01-31 16:11:44,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,876 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,906 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-31 16:11:44,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-31 16:11:44,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-31 16:11:44,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-31 16:11:44,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (1/1) ... [2024-01-31 16:11:44,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-31 16:11:44,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-31 16:11:44,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-31 16:11:44,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-31 16:11:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-31 16:11:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-31 16:11:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-31 16:11:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-31 16:11:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-31 16:11:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-31 16:11:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-31 16:11:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-31 16:11:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-31 16:11:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-31 16:11:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-31 16:11:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-31 16:11:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-31 16:11:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-31 16:11:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-31 16:11:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-31 16:11:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-31 16:11:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-31 16:11:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-31 16:11:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-31 16:11:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-31 16:11:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-31 16:11:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-31 16:11:44,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-31 16:11:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-31 16:11:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-31 16:11:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-31 16:11:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-31 16:11:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-31 16:11:44,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-31 16:11:44,981 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-31 16:11:45,077 INFO L244 CfgBuilder]: Building ICFG [2024-01-31 16:11:45,078 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-31 16:11:45,504 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-31 16:11:45,505 INFO L293 CfgBuilder]: Performing block encoding [2024-01-31 16:11:45,641 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-31 16:11:45,641 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-31 16:11:45,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:11:45 BoogieIcfgContainer [2024-01-31 16:11:45,643 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-31 16:11:45,644 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-31 16:11:45,645 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-31 16:11:45,647 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-31 16:11:45,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 31.01 04:11:43" (1/4) ... [2024-01-31 16:11:45,648 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683ab1b6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 31.01 04:11:45, skipping insertion in model container [2024-01-31 16:11:45,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.01 04:11:44" (2/4) ... [2024-01-31 16:11:45,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683ab1b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:11:45, skipping insertion in model container [2024-01-31 16:11:45,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.01 04:11:44" (3/4) ... [2024-01-31 16:11:45,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683ab1b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 04:11:45, skipping insertion in model container [2024-01-31 16:11:45,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 04:11:45" (4/4) ... [2024-01-31 16:11:45,650 INFO L112 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2024-01-31 16:11:45,663 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-31 16:11:45,663 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2024-01-31 16:11:45,664 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-31 16:11:45,731 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-31 16:11:45,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 129 transitions, 286 flow [2024-01-31 16:11:45,821 INFO L124 PetriNetUnfolderBase]: 8/125 cut-off events. [2024-01-31 16:11:45,821 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-31 16:11:45,836 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. [2024-01-31 16:11:45,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 129 transitions, 286 flow [2024-01-31 16:11:45,839 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 129 places, 124 transitions, 272 flow [2024-01-31 16:11:45,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-31 16:11:45,851 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;@2db3338, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-31 16:11:45,851 INFO L358 AbstractCegarLoop]: Starting to check reachability of 107 error locations. [2024-01-31 16:11:45,852 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-31 16:11:45,852 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-31 16:11:45,853 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-31 16:11:45,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:11:45,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-31 16:11:45,853 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 104 more)] === [2024-01-31 16:11:45,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:11:45,857 INFO L85 PathProgramCache]: Analyzing trace with hash 16575, now seen corresponding path program 1 times [2024-01-31 16:11:45,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:11:45,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176942483] [2024-01-31 16:11:45,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:11:45,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:11:45,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:11:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:11:46,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:11:46,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176942483] [2024-01-31 16:11:46,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176942483] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:11:46,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:11:46,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-31 16:11:46,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577619558] [2024-01-31 16:11:46,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:11:46,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:11:46,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:11:46,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:11:46,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:11:46,164 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 129 [2024-01-31 16:11:46,167 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) [2024-01-31 16:11:46,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:11:46,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 129 [2024-01-31 16:11:46,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:11:59,426 INFO L124 PetriNetUnfolderBase]: 163712/247801 cut-off events. [2024-01-31 16:11:59,426 INFO L125 PetriNetUnfolderBase]: For 6563/6563 co-relation queries the response was YES. [2024-01-31 16:11:59,819 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. [2024-01-31 16:12:00,893 INFO L140 encePairwiseOnDemand]: 108/129 looper letters, 62 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2024-01-31 16:12:00,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 105 transitions, 362 flow [2024-01-31 16:12:00,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:12:00,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:12:00,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-01-31 16:12:00,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5633074935400517 [2024-01-31 16:12:00,903 INFO L175 Difference]: Start difference. First operand has 129 places, 124 transitions, 272 flow. Second operand 3 states and 218 transitions. [2024-01-31 16:12:00,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 105 transitions, 362 flow [2024-01-31 16:12:01,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 346 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-31 16:12:01,109 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 222 flow [2024-01-31 16:12:01,111 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} [2024-01-31 16:12:01,113 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -21 predicate places. [2024-01-31 16:12:01,113 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 222 flow [2024-01-31 16:12:01,113 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) [2024-01-31 16:12:01,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:12:01,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-31 16:12:01,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-31 16:12:01,114 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 104 more)] === [2024-01-31 16:12:01,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:12:01,115 INFO L85 PathProgramCache]: Analyzing trace with hash 514365, now seen corresponding path program 1 times [2024-01-31 16:12:01,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:12:01,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478445490] [2024-01-31 16:12:01,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:12:01,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:12:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:12:01,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:12:01,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:12:01,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478445490] [2024-01-31 16:12:01,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478445490] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:12:01,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:12:01,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-31 16:12:01,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633139494] [2024-01-31 16:12:01,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:12:01,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-31 16:12:01,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:12:01,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-31 16:12:01,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-31 16:12:01,144 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 129 [2024-01-31 16:12:01,144 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) [2024-01-31 16:12:01,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:12:01,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 129 [2024-01-31 16:12:01,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-31 16:12:13,564 INFO L124 PetriNetUnfolderBase]: 182652/278980 cut-off events. [2024-01-31 16:12:13,565 INFO L125 PetriNetUnfolderBase]: For 1799/1799 co-relation queries the response was YES. [2024-01-31 16:12:13,903 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. [2024-01-31 16:12:15,206 INFO L140 encePairwiseOnDemand]: 122/129 looper letters, 107 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2024-01-31 16:12:15,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 154 transitions, 549 flow [2024-01-31 16:12:15,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-31 16:12:15,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-31 16:12:15,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 252 transitions. [2024-01-31 16:12:15,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6511627906976745 [2024-01-31 16:12:15,209 INFO L175 Difference]: Start difference. First operand has 108 places, 105 transitions, 222 flow. Second operand 3 states and 252 transitions. [2024-01-31 16:12:15,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 154 transitions, 549 flow [2024-01-31 16:12:15,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 154 transitions, 545 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-31 16:12:15,212 INFO L231 Difference]: Finished difference. Result has 109 places, 108 transitions, 256 flow [2024-01-31 16:12:15,212 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} [2024-01-31 16:12:15,212 INFO L281 CegarLoopForPetriNet]: 129 programPoint places, -20 predicate places. [2024-01-31 16:12:15,212 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 108 transitions, 256 flow [2024-01-31 16:12:15,213 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) [2024-01-31 16:12:15,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-31 16:12:15,213 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-31 16:12:15,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-31 16:12:15,213 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (and 104 more)] === [2024-01-31 16:12:15,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-31 16:12:15,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1855716818, now seen corresponding path program 1 times [2024-01-31 16:12:15,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-31 16:12:15,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587435899] [2024-01-31 16:12:15,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-31 16:12:15,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-31 16:12:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-31 16:12:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-31 16:12:15,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-31 16:12:15,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587435899] [2024-01-31 16:12:15,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587435899] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-31 16:12:15,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-31 16:12:15,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-31 16:12:15,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895826636] [2024-01-31 16:12:15,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-31 16:12:15,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-31 16:12:15,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-31 16:12:15,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-31 16:12:15,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-31 16:12:15,361 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 129 [2024-01-31 16:12:15,361 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) [2024-01-31 16:12:15,361 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-31 16:12:15,361 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 129 [2024-01-31 16:12:15,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand