./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.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-exp3x3-opt.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-exp3x3-opt.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp3x3-opt.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 23:07:39,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:07:39,915 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:07:39,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:07:39,918 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:07:39,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:07:39,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:07:39,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:07:39,937 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:07:39,940 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:07:39,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:07:39,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:07:39,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:07:39,942 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:07:39,942 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:07:39,943 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:07:39,943 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:07:39,943 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:07:39,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:07:39,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:07:39,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:07:39,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:07:39,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:07:39,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:07:39,945 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:07:39,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:07:39,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:07:39,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:07:39,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:07:39,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:07:39,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:07:39,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:07:39,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:07:39,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:07:39,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:07:39,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:07:39,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:07:39,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:07:39,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:07:39,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:07:39,949 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:07:39,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:07:39,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:07:39,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:07:40,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:07:40,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:07:40,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:07:40,143 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:07:40,144 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:07:40,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2024-01-27 23:07:41,122 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:07:41,302 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:07:41,303 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2024-01-27 23:07:41,310 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18646f9c/8af1ca0499f44d44b5d1c444c378a429/FLAG0e7eda17d [2024-01-27 23:07:41,319 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b18646f9c/8af1ca0499f44d44b5d1c444c378a429 [2024-01-27 23:07:41,321 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:07:41,322 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:07:41,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp3x3-opt.wvr.yml/witness.yml [2024-01-27 23:07:41,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:07:41,415 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:07:41,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:07:41,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:07:41,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:07:41,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:07:41" (1/2) ... [2024-01-27 23:07:41,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2355e99d 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 23:07:41,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:07:41" (1/2) ... [2024-01-27 23:07:41,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b790348 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 23:07:41,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:41" (2/2) ... [2024-01-27 23:07:41,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2355e99d 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 23:07:41,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:41" (2/2) ... [2024-01-27 23:07:41,442 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:07:41,462 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:07:41,463 INFO L98 nessWitnessExtractor]: Location invariant before [L96-L96] x6 == 0U [2024-01-27 23:07:41,464 INFO L98 nessWitnessExtractor]: Location invariant before [L96-L96] x5 == 0U [2024-01-27 23:07:41,464 INFO L98 nessWitnessExtractor]: Location invariant before [L96-L96] n == 0U [2024-01-27 23:07:41,464 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,464 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] n == 0U [2024-01-27 23:07:41,464 INFO L98 nessWitnessExtractor]: Loop invariant at [L57-L59] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,464 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,464 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] x4 == 0U [2024-01-27 23:07:41,465 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] x5 == 0U [2024-01-27 23:07:41,465 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] x6 == 0U [2024-01-27 23:07:41,465 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] x3 == 0U [2024-01-27 23:07:41,465 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] n == 0U [2024-01-27 23:07:41,465 INFO L98 nessWitnessExtractor]: Loop invariant at [L49-L51] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,465 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,465 INFO L98 nessWitnessExtractor]: Location invariant after [L41-L43] n == 0U [2024-01-27 23:07:41,466 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L43] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,466 INFO L98 nessWitnessExtractor]: Loop invariant at [L73-L75] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,466 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] x6 == 0U [2024-01-27 23:07:41,466 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] n == 0U [2024-01-27 23:07:41,466 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,466 INFO L98 nessWitnessExtractor]: Loop invariant at [L81-L83] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,466 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,466 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] x4 == 0U [2024-01-27 23:07:41,467 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (long long )n + (long long )x1 >= 0LL [2024-01-27 23:07:41,467 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] x2 == 0U [2024-01-27 23:07:41,467 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] x1 == 0U [2024-01-27 23:07:41,467 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] x6 == 0U [2024-01-27 23:07:41,467 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (0LL - (long long )n) - (long long )x1 >= 0LL [2024-01-27 23:07:41,467 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (long long )n - (long long )x1 >= 0LL [2024-01-27 23:07:41,467 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] x5 == 0U [2024-01-27 23:07:41,468 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] n == 0U [2024-01-27 23:07:41,468 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (0LL - (long long )n) + (long long )x1 >= 0LL [2024-01-27 23:07:41,468 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] x3 == 0U [2024-01-27 23:07:41,468 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,468 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,468 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,468 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,469 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] x6 == 0U [2024-01-27 23:07:41,469 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] x5 == 0U [2024-01-27 23:07:41,469 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] n == 0U [2024-01-27 23:07:41,469 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] x4 == 0U [2024-01-27 23:07:41,469 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,469 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,469 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] x5 == 0U [2024-01-27 23:07:41,470 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] n == 0U [2024-01-27 23:07:41,470 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] x4 == 0U [2024-01-27 23:07:41,470 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] x6 == 0U [2024-01-27 23:07:41,470 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] x2 == 0U [2024-01-27 23:07:41,470 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] x3 == 0U [2024-01-27 23:07:41,470 INFO L98 nessWitnessExtractor]: Loop invariant at [L65-L67] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,470 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-27 23:07:41,490 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:07:41,628 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-exp3x3-opt.wvr.c[2904,2917] [2024-01-27 23:07:41,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:07:41,640 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 [2024-01-27 23:07:41,703 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-exp3x3-opt.wvr.c[2904,2917] [2024-01-27 23:07:41,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:07:41,718 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:07:41,719 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41 WrapperNode [2024-01-27 23:07:41,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:07:41,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:07:41,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:07:41,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:07:41,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,772 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 163 [2024-01-27 23:07:41,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:07:41,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:07:41,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:07:41,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:07:41,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,820 INFO L175 MemorySlicer]: Split 14 memory accesses to 7 slices as follows [2, 2, 2, 2, 2, 2, 2]. 14 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0]. The 6 writes are split as follows [0, 1, 1, 1, 1, 1, 1]. [2024-01-27 23:07:41,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,822 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,832 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,836 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:07:41,836 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:07:41,837 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:07:41,837 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:07:41,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (1/1) ... [2024-01-27 23:07:41,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:07:41,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:07:41,880 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 23:07:41,899 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 23:07:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:07:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:07:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:07:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:07:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:07:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 23:07:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 23:07:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-27 23:07:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-27 23:07:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:07:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:07:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:07:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 23:07:41,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 23:07:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-27 23:07:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-27 23:07:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 23:07:41,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 23:07:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 23:07:41,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 23:07:41,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 23:07:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 23:07:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-27 23:07:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-27 23:07:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:07:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:07:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:07:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 23:07:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 23:07:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-27 23:07:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-27 23:07:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-01-27 23:07:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-01-27 23:07:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-01-27 23:07:41,924 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-01-27 23:07:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:07:41,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:07:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:07:41,926 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 23:07:42,036 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:07:42,037 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:07:42,327 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:07:42,327 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:07:42,464 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:07:42,464 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-01-27 23:07:42,465 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:07:42 BoogieIcfgContainer [2024-01-27 23:07:42,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:07:42,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:07:42,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:07:42,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:07:42,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:07:41" (1/4) ... [2024-01-27 23:07:42,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c45854b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:07:42, skipping insertion in model container [2024-01-27 23:07:42,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:07:41" (2/4) ... [2024-01-27 23:07:42,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c45854b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:07:42, skipping insertion in model container [2024-01-27 23:07:42,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:07:41" (3/4) ... [2024-01-27 23:07:42,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c45854b and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:07:42, skipping insertion in model container [2024-01-27 23:07:42,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:07:42" (4/4) ... [2024-01-27 23:07:42,471 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2024-01-27 23:07:42,485 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:07:42,485 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2024-01-27 23:07:42,485 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:07:42,593 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-01-27 23:07:42,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 178 places, 165 transitions, 372 flow [2024-01-27 23:07:42,694 INFO L124 PetriNetUnfolderBase]: 6/159 cut-off events. [2024-01-27 23:07:42,694 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-27 23:07:42,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184 conditions, 159 events. 6/159 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 344 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 142. Up to 2 conditions per place. [2024-01-27 23:07:42,700 INFO L82 GeneralOperation]: Start removeDead. Operand has 178 places, 165 transitions, 372 flow [2024-01-27 23:07:42,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 158 transitions, 352 flow [2024-01-27 23:07:42,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:07:42,726 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;@24abc61a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:07:42,727 INFO L358 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2024-01-27 23:07:42,729 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:07:42,730 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:07:42,730 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:07:42,730 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:42,731 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:07:42,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-27 23:07:42,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:42,735 INFO L85 PathProgramCache]: Analyzing trace with hash 17069, now seen corresponding path program 1 times [2024-01-27 23:07:42,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:42,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748068113] [2024-01-27 23:07:42,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:42,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:43,003 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 23:07:43,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:43,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748068113] [2024-01-27 23:07:43,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748068113] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:43,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:43,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:07:43,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741028376] [2024-01-27 23:07:43,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:43,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:43,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:43,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:43,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:43,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 165 [2024-01-27 23:07:43,065 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 158 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 23:07:43,065 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:43,065 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 165 [2024-01-27 23:07:43,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:50,114 INFO L124 PetriNetUnfolderBase]: 52718/72263 cut-off events. [2024-01-27 23:07:50,114 INFO L125 PetriNetUnfolderBase]: For 2853/2853 co-relation queries the response was YES. [2024-01-27 23:07:50,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141909 conditions, 72263 events. 52718/72263 cut-off events. For 2853/2853 co-relation queries the response was YES. Maximal size of possible extension queue 4283. Compared 540278 event pairs, 51885 based on Foata normal form. 4/65505 useless extension candidates. Maximal degree in co-relation 115886. Up to 65541 conditions per place. [2024-01-27 23:07:51,088 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 48 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2024-01-27 23:07:51,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 154 transitions, 444 flow [2024-01-27 23:07:51,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:51,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 384 transitions. [2024-01-27 23:07:51,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-01-27 23:07:51,101 INFO L175 Difference]: Start difference. First operand has 171 places, 158 transitions, 352 flow. Second operand 3 states and 384 transitions. [2024-01-27 23:07:51,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 154 transitions, 444 flow [2024-01-27 23:07:51,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 154 transitions, 420 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-01-27 23:07:51,296 INFO L231 Difference]: Finished difference. Result has 157 places, 154 transitions, 324 flow [2024-01-27 23:07:51,298 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=157, PETRI_TRANSITIONS=154} [2024-01-27 23:07:51,300 INFO L281 CegarLoopForPetriNet]: 171 programPoint places, -14 predicate places. [2024-01-27 23:07:51,300 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 154 transitions, 324 flow [2024-01-27 23:07:51,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 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 23:07:51,301 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:51,301 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 23:07:51,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:07:51,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 86 more)] === [2024-01-27 23:07:51,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:51,302 INFO L85 PathProgramCache]: Analyzing trace with hash 529770, now seen corresponding path program 1 times [2024-01-27 23:07:51,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:51,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481935616] [2024-01-27 23:07:51,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:51,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:51,375 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 23:07:51,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:51,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481935616] [2024-01-27 23:07:51,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481935616] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:51,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:51,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:07:51,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124885822] [2024-01-27 23:07:51,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:51,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:07:51,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:51,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:07:51,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:07:51,413 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 165 [2024-01-27 23:07:51,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 154 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 23:07:51,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:51,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 165 [2024-01-27 23:07:51,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand