./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp3x3.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.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 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.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp3x3.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-3d25acf-m [2024-01-30 14:22:44,116 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:22:44,173 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:22:44,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:22:44,178 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:22:44,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:22:44,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:22:44,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:22:44,208 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:22:44,211 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:22:44,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:22:44,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:22:44,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:22:44,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:22:44,213 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:22:44,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:22:44,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:22:44,214 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:22:44,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:22:44,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:22:44,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:22:44,215 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:22:44,215 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:22:44,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:22:44,215 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:22:44,216 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:22:44,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:22:44,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:22:44,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:22:44,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:22:44,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:22:44,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:22:44,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:22:44,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:22:44,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:22:44,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:22:44,219 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:22:44,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:22:44,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:22:44,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:22:44,220 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:22:44,220 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:22:44,220 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:22:44,220 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:22:44,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:22:44,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:22:44,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:22:44,481 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:22:44,481 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:22:44,482 INFO L431 ainManager$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.wvr.yml/witness.yml [2024-01-30 14:22:44,560 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:22:44,560 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:22:44,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2024-01-30 14:22:45,574 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:22:45,705 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:22:45,706 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2024-01-30 14:22:45,711 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e6b21b0/53bfb4218ffb41909bd145f5c87e4465/FLAGb4890fb3a [2024-01-30 14:22:45,721 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32e6b21b0/53bfb4218ffb41909bd145f5c87e4465 [2024-01-30 14:22:45,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:22:45,723 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:22:45,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:22:45,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:22:45,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:22:45,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:22:44" (1/2) ... [2024-01-30 14:22:45,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f92a9b0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:45, skipping insertion in model container [2024-01-30 14:22:45,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:22:44" (1/2) ... [2024-01-30 14:22:45,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@534fbbac and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:45, skipping insertion in model container [2024-01-30 14:22:45,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:22:45" (2/2) ... [2024-01-30 14:22:45,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f92a9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45, skipping insertion in model container [2024-01-30 14:22:45,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:22:45" (2/2) ... [2024-01-30 14:22:45,731 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:22:45,748 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:22:45,749 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] ((x5 == 0U) && (x6 == 0U)) && (n == 0U) [2024-01-30 14:22:45,750 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,750 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,750 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] (x6 == 0U) && (n == 0U) [2024-01-30 14:22:45,750 INFO L98 nessWitnessExtractor]: Loop invariant at [L54-L56] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,750 INFO L98 nessWitnessExtractor]: Loop invariant at [L70-L72] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,750 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (((((((((((0LL - (long long )n) + (long long )x1 >= 0LL) && ((long long )n + (long long )x1 >= 0LL)) && ((0LL - (long long )n) - (long long )x1 >= 0LL)) && ((long long )n - (long long )x1 >= 0LL)) && (x1 == 0U)) && (x2 == 0U)) && (x3 == 0U)) && (x4 == 0U)) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-01-30 14:22:45,750 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,751 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,751 INFO L98 nessWitnessExtractor]: Loop invariant at [L78-L80] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,751 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L40] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,751 INFO L98 nessWitnessExtractor]: Loop invariant at [L46-L48] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,751 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,751 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] ((((x3 == 0U) && (x4 == 0U)) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-01-30 14:22:45,751 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] n == 0U [2024-01-30 14:22:45,751 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,752 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,752 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,752 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (((x4 == 0U) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-01-30 14:22:45,752 INFO L98 nessWitnessExtractor]: Loop invariant at [L62-L64] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,752 INFO L98 nessWitnessExtractor]: Location invariant after [L37-L43] n == 0U [2024-01-30 14:22:45,752 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,752 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,753 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,753 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-30 14:22:45,753 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (((((x2 == 0U) && (x3 == 0U)) && (x4 == 0U)) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-01-30 14:22:45,769 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:22:45,899 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.wvr.c[2703,2716] [2024-01-30 14:22:45,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:22:45,909 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-30 14:22:45,941 WARN L424 MainDispatcher]: Unable to annotate void* thread1(void* _argptr) { while (x1 < n) { x1 = x1 + x1; } return 0; } with a witness entry 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 [2024-01-30 14:22:45,966 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.wvr.c[2703,2716] [2024-01-30 14:22:45,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:22:45,981 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:22:45,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45 WrapperNode [2024-01-30 14:22:45,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:22:45,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:22:45,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:22:45,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:22:45,989 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:45,996 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:46,024 INFO L138 Inliner]: procedures = 22, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 138 [2024-01-30 14:22:46,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:22:46,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:22:46,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:22:46,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:22:46,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:46,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:46,057 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:46,082 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]. [2024-01-30 14:22:46,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:46,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:46,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:46,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:46,105 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:46,107 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:46,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:22:46,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:22:46,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:22:46,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:22:46,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (1/1) ... [2024-01-30 14:22:46,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:22:46,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:22:46,138 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) [2024-01-30 14:22:46,157 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 [2024-01-30 14:22:46,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:22:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:22:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:22:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:22:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:22:46,173 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-30 14:22:46,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-30 14:22:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-30 14:22:46,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-30 14:22:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:22:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:22:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:22:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:22:46,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-30 14:22:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-30 14:22:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-30 14:22:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-01-30 14:22:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-01-30 14:22:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-01-30 14:22:46,175 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-01-30 14:22:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:22:46,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:22:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:22:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:22:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:22:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-30 14:22:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-30 14:22:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-30 14:22:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:22:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:22:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:22:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:22:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:22:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:22:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-30 14:22:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-30 14:22:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-30 14:22:46,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:22:46,180 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:22:46,333 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:22:46,335 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:22:46,628 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:22:46,628 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:22:46,722 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:22:46,725 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-01-30 14:22:46,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:22:46 BoogieIcfgContainer [2024-01-30 14:22:46,725 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:22:46,727 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:22:46,727 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:22:46,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:22:46,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:22:44" (1/4) ... [2024-01-30 14:22:46,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbf5aa5 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:22:46, skipping insertion in model container [2024-01-30 14:22:46,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:22:45" (2/4) ... [2024-01-30 14:22:46,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbf5aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:22:46, skipping insertion in model container [2024-01-30 14:22:46,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:45" (3/4) ... [2024-01-30 14:22:46,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bbf5aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:22:46, skipping insertion in model container [2024-01-30 14:22:46,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:22:46" (4/4) ... [2024-01-30 14:22:46,734 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2024-01-30 14:22:46,746 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:22:46,747 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-01-30 14:22:46,747 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:22:46,816 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-01-30 14:22:46,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 113 transitions, 268 flow [2024-01-30 14:22:46,891 INFO L124 PetriNetUnfolderBase]: 6/107 cut-off events. [2024-01-30 14:22:46,892 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-30 14:22:46,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 107 events. 6/107 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 297 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2024-01-30 14:22:46,896 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 113 transitions, 268 flow [2024-01-30 14:22:46,900 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 106 transitions, 248 flow [2024-01-30 14:22:46,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:22:46,916 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;@3de0b614, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:22:46,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-01-30 14:22:46,919 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:22:46,919 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:22:46,920 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:22:46,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:22:46,921 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:22:46,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 59 more)] === [2024-01-30 14:22:46,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:22:46,925 INFO L85 PathProgramCache]: Analyzing trace with hash 15226, now seen corresponding path program 1 times [2024-01-30 14:22:46,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:22:46,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500564421] [2024-01-30 14:22:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:22:46,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:22:47,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:22:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:22:47,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:22:47,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500564421] [2024-01-30 14:22:47,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500564421] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:22:47,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:22:47,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:22:47,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962034605] [2024-01-30 14:22:47,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:22:47,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:22:47,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:22:47,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:22:47,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:22:47,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 113 [2024-01-30 14:22:47,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 106 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-01-30 14:22:47,547 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:22:47,547 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 113 [2024-01-30 14:22:47,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:23:08,513 INFO L124 PetriNetUnfolderBase]: 296882/377355 cut-off events. [2024-01-30 14:23:08,513 INFO L125 PetriNetUnfolderBase]: For 10404/10404 co-relation queries the response was YES. [2024-01-30 14:23:09,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 731291 conditions, 377355 events. 296882/377355 cut-off events. For 10404/10404 co-relation queries the response was YES. Maximal size of possible extension queue 15115. Compared 2479130 event pairs, 193752 based on Foata normal form. 0/251357 useless extension candidates. Maximal degree in co-relation 622656. Up to 342210 conditions per place. [2024-01-30 14:23:12,320 INFO L140 encePairwiseOnDemand]: 110/113 looper letters, 60 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2024-01-30 14:23:12,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 105 transitions, 370 flow [2024-01-30 14:23:12,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:23:12,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:23:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-01-30 14:23:12,346 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6194690265486725 [2024-01-30 14:23:12,348 INFO L175 Difference]: Start difference. First operand has 119 places, 106 transitions, 248 flow. Second operand 3 states and 210 transitions. [2024-01-30 14:23:12,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 105 transitions, 370 flow [2024-01-30 14:23:13,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 346 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-01-30 14:23:13,276 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 226 flow [2024-01-30 14:23:13,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2024-01-30 14:23:13,280 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -11 predicate places. [2024-01-30 14:23:13,281 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 226 flow [2024-01-30 14:23:13,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-01-30 14:23:13,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:13,281 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:23:13,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:23:13,282 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 59 more)] === [2024-01-30 14:23:13,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:13,282 INFO L85 PathProgramCache]: Analyzing trace with hash 472561, now seen corresponding path program 1 times [2024-01-30 14:23:13,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:13,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840584073] [2024-01-30 14:23:13,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:13,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:23:13,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:23:13,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:23:13,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840584073] [2024-01-30 14:23:13,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840584073] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:23:13,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:23:13,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:23:13,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448715221] [2024-01-30 14:23:13,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:23:13,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:23:13,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:23:13,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:23:13,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:23:13,436 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 113 [2024-01-30 14:23:13,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 105 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2024-01-30 14:23:13,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:23:13,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 113 [2024-01-30 14:23:13,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand