./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cb09d658 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-cb09d65-m [2024-01-27 23:07:39,931 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:07:40,032 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:07:40,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:07:40,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:07:40,063 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:07:40,064 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:07:40,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:07:40,065 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:07:40,068 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:07:40,068 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:07:40,068 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:07:40,069 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:07:40,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:07:40,070 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:07:40,070 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:07:40,070 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:07:40,071 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:07:40,071 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:07:40,071 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:07:40,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:07:40,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:07:40,072 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:07:40,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:07:40,072 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:07:40,072 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:07:40,073 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:07:40,073 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:07:40,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:07:40,073 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:07:40,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:07:40,074 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:07:40,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:07:40,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:07:40,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:07:40,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:07:40,075 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:07:40,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:07:40,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:07:40,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:07:40,076 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:07:40,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:07:40,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:07:40,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:07:40,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:07:40,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:07:40,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:07:40,347 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:07:40,348 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:07:40,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml [2024-01-27 23:07:40,526 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:07:40,531 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:07:40,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-27 23:07:41,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:07:41,905 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:07:41,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-27 23:07:41,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56f732758/9da4162b7e484602a12b2fd80562db41/FLAGb4b97471e [2024-01-27 23:07:41,927 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56f732758/9da4162b7e484602a12b2fd80562db41 [2024-01-27 23:07:41,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:07:41,928 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:07:41,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:07:41,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:07:41,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:07:41,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:40" (1/2) ... [2024-01-27 23:07:41,936 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2362dbd1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41, skipping insertion in model container [2024-01-27 23:07:41,936 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:40" (1/2) ... [2024-01-27 23:07:41,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2aba8868 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41, skipping insertion in model container [2024-01-27 23:07:41,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:07:41" (2/2) ... [2024-01-27 23:07:41,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2362dbd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:41, skipping insertion in model container [2024-01-27 23:07:41,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:07:41" (2/2) ... [2024-01-27 23:07:41,939 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:07:41,966 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:07:41,967 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] n == 0U [2024-01-27 23:07:41,967 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] x3 == 0U [2024-01-27 23:07:41,967 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] x4 == 0U [2024-01-27 23:07:41,967 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,967 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,968 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,968 INFO L98 nessWitnessExtractor]: Loop invariant at [L66-L74] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,968 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,968 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,968 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,968 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,968 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L46] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,968 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] n == 0U [2024-01-27 23:07:41,969 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] x4 == 0U [2024-01-27 23:07:41,969 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,969 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,969 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,969 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,969 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,969 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,970 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,970 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,970 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,970 INFO L98 nessWitnessExtractor]: Loop invariant at [L52-L60] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,971 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,971 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,971 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,971 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,971 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,971 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (long long )x1 - (long long )x3 >= 0LL [2024-01-27 23:07:41,971 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (0LL - (long long )x1) - (long long )x3 >= 0LL [2024-01-27 23:07:41,971 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x2 == 0U [2024-01-27 23:07:41,972 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (long long )x1 + (long long )x3 >= 0LL [2024-01-27 23:07:41,972 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x3 == 0U [2024-01-27 23:07:41,972 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x1 == 0U [2024-01-27 23:07:41,972 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x4 == 0U [2024-01-27 23:07:41,972 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (0LL - (long long )x1) + (long long )x3 >= 0LL [2024-01-27 23:07:41,973 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] n == 0U [2024-01-27 23:07:41,974 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,974 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,974 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,974 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,974 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,975 INFO L98 nessWitnessExtractor]: Loop invariant at [L80-L88] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,975 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,975 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,975 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,975 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,975 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] n == 0U [2024-01-27 23:07:41,976 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,976 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] n == 0U [2024-01-27 23:07:41,976 INFO L98 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,976 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] x2 == 0U [2024-01-27 23:07:41,976 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] n == 0U [2024-01-27 23:07:41,977 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] x3 == 0U [2024-01-27 23:07:41,977 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] x4 == 0U [2024-01-27 23:07:41,998 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:07:42,148 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c[2721,2734] [2024-01-27 23:07:42,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:07:42,171 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local 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 [2024-01-27 23:07:42,239 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c[2721,2734] [2024-01-27 23:07:42,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:07:42,268 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:07:42,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42 WrapperNode [2024-01-27 23:07:42,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:07:42,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:07:42,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:07:42,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:07:42,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,323 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-01-27 23:07:42,324 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:07:42,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:07:42,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:07:42,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:07:42,359 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,361 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,379 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]. [2024-01-27 23:07:42,380 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,380 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,390 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:07:42,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:07:42,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:07:42,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:07:42,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (1/1) ... [2024-01-27 23:07:42,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:07:42,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:07:42,439 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) [2024-01-27 23:07:42,441 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 [2024-01-27 23:07:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:07:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 23:07:42,470 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 23:07:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 23:07:42,470 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 23:07:42,470 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 23:07:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 23:07:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-27 23:07:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-27 23:07:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:07:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:07:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:07:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 23:07:42,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 23:07:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:07:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:07:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:07:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:07:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 23:07:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 23:07:42,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:07:42,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:07:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:07:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:07:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:07:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 23:07:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 23:07:42,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:07:42,474 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 23:07:42,555 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:07:42,557 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:07:42,919 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:07:42,919 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:07:43,029 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:07:43,031 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-27 23:07:43,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:07:43 BoogieIcfgContainer [2024-01-27 23:07:43,032 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:07:43,034 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:07:43,034 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:07:43,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:07:43,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:40" (1/4) ... [2024-01-27 23:07:43,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618b40fc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:07:43, skipping insertion in model container [2024-01-27 23:07:43,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:07:41" (2/4) ... [2024-01-27 23:07:43,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618b40fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:07:43, skipping insertion in model container [2024-01-27 23:07:43,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:07:42" (3/4) ... [2024-01-27 23:07:43,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618b40fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:07:43, skipping insertion in model container [2024-01-27 23:07:43,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:07:43" (4/4) ... [2024-01-27 23:07:43,040 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-01-27 23:07:43,055 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:07:43,056 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2024-01-27 23:07:43,056 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:07:43,131 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-27 23:07:43,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 155 transitions, 338 flow [2024-01-27 23:07:43,235 INFO L124 PetriNetUnfolderBase]: 4/151 cut-off events. [2024-01-27 23:07:43,235 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 23:07:43,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 151 events. 4/151 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 496 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 122. Up to 2 conditions per place. [2024-01-27 23:07:43,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 155 transitions, 338 flow [2024-01-27 23:07:43,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 150 transitions, 324 flow [2024-01-27 23:07:43,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:07:43,268 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;@54e6e2d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:07:43,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 106 error locations. [2024-01-27 23:07:43,270 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:07:43,271 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:07:43,271 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:07:43,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:43,272 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:07:43,272 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-27 23:07:43,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:43,276 INFO L85 PathProgramCache]: Analyzing trace with hash 16538, now seen corresponding path program 1 times [2024-01-27 23:07:43,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:43,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202247112] [2024-01-27 23:07:43,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:43,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:43,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:43,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202247112] [2024-01-27 23:07:43,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202247112] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:43,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:43,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:07:43,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818425932] [2024-01-27 23:07:43,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:43,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:43,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:43,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:43,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:43,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 155 [2024-01-27 23:07:43,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 150 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2024-01-27 23:07:43,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:43,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 155 [2024-01-27 23:07:43,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:59,418 INFO L124 PetriNetUnfolderBase]: 142422/223184 cut-off events. [2024-01-27 23:07:59,432 INFO L125 PetriNetUnfolderBase]: For 5673/5673 co-relation queries the response was YES. [2024-01-27 23:08:00,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 408237 conditions, 223184 events. 142422/223184 cut-off events. For 5673/5673 co-relation queries the response was YES. Maximal size of possible extension queue 7896. Compared 2101930 event pairs, 116597 based on Foata normal form. 3/184272 useless extension candidates. Maximal degree in co-relation 380384. Up to 180385 conditions per place. [2024-01-27 23:08:01,776 INFO L140 encePairwiseOnDemand]: 147/155 looper letters, 61 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2024-01-27 23:08:01,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 144 transitions, 438 flow [2024-01-27 23:08:01,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:01,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:01,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 324 transitions. [2024-01-27 23:08:01,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6967741935483871 [2024-01-27 23:08:01,789 INFO L175 Difference]: Start difference. First operand has 159 places, 150 transitions, 324 flow. Second operand 3 states and 324 transitions. [2024-01-27 23:08:01,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 144 transitions, 438 flow [2024-01-27 23:08:01,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 144 transitions, 422 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-27 23:08:01,930 INFO L231 Difference]: Finished difference. Result has 147 places, 144 transitions, 300 flow [2024-01-27 23:08:01,932 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=147, PETRI_TRANSITIONS=144} [2024-01-27 23:08:01,934 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -12 predicate places. [2024-01-27 23:08:01,934 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 144 transitions, 300 flow [2024-01-27 23:08:01,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2024-01-27 23:08:01,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:01,935 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 23:08:01,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:08:01,935 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-27 23:08:01,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:01,936 INFO L85 PathProgramCache]: Analyzing trace with hash 513226, now seen corresponding path program 1 times [2024-01-27 23:08:01,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:01,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321091550] [2024-01-27 23:08:01,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:01,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:01,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:01,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:01,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321091550] [2024-01-27 23:08:01,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321091550] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:01,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:01,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:01,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383610911] [2024-01-27 23:08:01,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:02,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:02,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:02,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:02,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:02,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 155 [2024-01-27 23:08:02,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 144 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2024-01-27 23:08:02,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:02,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 155 [2024-01-27 23:08:02,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:08:11,632 INFO L124 PetriNetUnfolderBase]: 92052/155591 cut-off events. [2024-01-27 23:08:11,633 INFO L125 PetriNetUnfolderBase]: For 1007/1007 co-relation queries the response was YES. [2024-01-27 23:08:11,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273136 conditions, 155591 events. 92052/155591 cut-off events. For 1007/1007 co-relation queries the response was YES. Maximal size of possible extension queue 6014. Compared 1580427 event pairs, 73557 based on Foata normal form. 4/147223 useless extension candidates. Maximal degree in co-relation 273095. Up to 116429 conditions per place. [2024-01-27 23:08:12,783 INFO L140 encePairwiseOnDemand]: 148/155 looper letters, 58 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2024-01-27 23:08:12,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 139 transitions, 410 flow [2024-01-27 23:08:12,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:08:12,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:08:12,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 329 transitions. [2024-01-27 23:08:12,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7075268817204301 [2024-01-27 23:08:12,786 INFO L175 Difference]: Start difference. First operand has 147 places, 144 transitions, 300 flow. Second operand 3 states and 329 transitions. [2024-01-27 23:08:12,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 139 transitions, 410 flow [2024-01-27 23:08:12,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 139 transitions, 406 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:08:12,789 INFO L231 Difference]: Finished difference. Result has 142 places, 139 transitions, 290 flow [2024-01-27 23:08:12,798 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=142, PETRI_TRANSITIONS=139} [2024-01-27 23:08:12,799 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -17 predicate places. [2024-01-27 23:08:12,799 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 139 transitions, 290 flow [2024-01-27 23:08:12,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 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) [2024-01-27 23:08:12,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:08:12,800 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 23:08:12,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:08:12,800 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-27 23:08:12,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:08:12,800 INFO L85 PathProgramCache]: Analyzing trace with hash 15910564, now seen corresponding path program 1 times [2024-01-27 23:08:12,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:08:12,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374522557] [2024-01-27 23:08:12,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:08:12,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:08:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:08:12,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:08:12,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:08:12,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374522557] [2024-01-27 23:08:12,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374522557] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:08:12,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:08:12,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:08:12,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622915539] [2024-01-27 23:08:12,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:08:12,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:08:12,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:08:12,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:08:12,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:08:12,888 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 155 [2024-01-27 23:08:12,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 139 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 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) [2024-01-27 23:08:12,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:08:12,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 155 [2024-01-27 23:08:12,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand