./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 59af5db6 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-59af5db-m [2024-02-02 09:18:54,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:18:54,118 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:18:54,122 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:18:54,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:18:54,156 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:18:54,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:18:54,157 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:18:54,157 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:18:54,157 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:18:54,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:18:54,158 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:18:54,158 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:18:54,159 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:18:54,159 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:18:54,159 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:18:54,159 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:18:54,160 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:18:54,160 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:18:54,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:18:54,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:18:54,166 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:18:54,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:18:54,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:18:54,166 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:18:54,167 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:18:54,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:18:54,167 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:18:54,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:18:54,167 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:18:54,167 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:18:54,168 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:18:54,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:18:54,168 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:18:54,168 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:18:54,168 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:18:54,169 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:18:54,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:18:54,169 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:18:54,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:18:54,169 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:18:54,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:18:54,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:18:54,171 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:18:54,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:18:54,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:18:54,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:18:54,454 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:18:54,455 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:18:54,455 INFO L431 ainManager$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 [2024-02-02 09:18:54,556 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:18:54,557 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:18:54,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2024-02-02 09:18:55,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:18:55,710 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:18:55,710 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2024-02-02 09:18:55,716 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93799d34/02ad6b6f824a45e9817b122847ab5d94/FLAG7924a1e21 [2024-02-02 09:18:56,123 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93799d34/02ad6b6f824a45e9817b122847ab5d94 [2024-02-02 09:18:56,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:18:56,125 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:18:56,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:18:56,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:18:56,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:18:56,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:18:54" (1/2) ... [2024-02-02 09:18:56,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad0dda2 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56, skipping insertion in model container [2024-02-02 09:18:56,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:18:54" (1/2) ... [2024-02-02 09:18:56,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46b1a3f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56, skipping insertion in model container [2024-02-02 09:18:56,131 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:18:56" (2/2) ... [2024-02-02 09:18:56,132 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ad0dda2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56, skipping insertion in model container [2024-02-02 09:18:56,132 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:18:56" (2/2) ... [2024-02-02 09:18:56,132 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:18:56,152 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:18:56,154 INFO L101 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) [2024-02-02 09:18:56,154 INFO L101 nessWitnessExtractor]: Location invariant before [L94-L94] (x6 == 0U) && (n == 0U) [2024-02-02 09:18:56,154 INFO L101 nessWitnessExtractor]: Location invariant before [L93-L93] ((x5 == 0U) && (x6 == 0U)) && (n == 0U) [2024-02-02 09:18:56,154 INFO L101 nessWitnessExtractor]: Location invariant before [L91-L91] ((((x3 == 0U) && (x4 == 0U)) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-02-02 09:18:56,154 INFO L101 nessWitnessExtractor]: Location invariant before [L90-L90] (((((x2 == 0U) && (x3 == 0U)) && (x4 == 0U)) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-02-02 09:18:56,154 INFO L101 nessWitnessExtractor]: Loop invariant at [L46-L48] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,154 INFO L101 nessWitnessExtractor]: Loop invariant at [L54-L56] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,155 INFO L101 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,155 INFO L101 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,155 INFO L101 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,155 INFO L101 nessWitnessExtractor]: Location invariant after [L37-L43] n == 0U [2024-02-02 09:18:56,155 INFO L101 nessWitnessExtractor]: Loop invariant at [L38-L40] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,155 INFO L101 nessWitnessExtractor]: Loop invariant at [L78-L80] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,155 INFO L101 nessWitnessExtractor]: Loop invariant at [L70-L72] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,156 INFO L101 nessWitnessExtractor]: Loop invariant at [L62-L64] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,156 INFO L101 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,156 INFO L101 nessWitnessExtractor]: Location invariant before [L92-L92] (((x4 == 0U) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-02-02 09:18:56,156 INFO L101 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,156 INFO L101 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,156 INFO L101 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,156 INFO L101 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,157 INFO L101 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,157 INFO L101 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,157 INFO L101 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,157 INFO L101 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-02-02 09:18:56,157 INFO L101 nessWitnessExtractor]: Location invariant before [L95-L95] n == 0U [2024-02-02 09:18:56,179 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:18:56,314 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] [2024-02-02 09:18:56,318 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:18:56,324 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:18:56,360 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 [2024-02-02 09:18:56,409 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] [2024-02-02 09:18:56,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:18:56,436 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:18:56,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56 WrapperNode [2024-02-02 09:18:56,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:18:56,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:18:56,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:18:56,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:18:56,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,490 INFO L138 Inliner]: procedures = 22, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 138 [2024-02-02 09:18:56,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:18:56,492 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:18:56,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:18:56,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:18:56,501 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,515 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,537 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]. [2024-02-02 09:18:56,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,567 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:18:56,569 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:18:56,569 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:18:56,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:18:56,570 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:18:56,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:18:56,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-02 09:18:56,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-02 09:18:56,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:18:56,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:18:56,637 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:18:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:18:56,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:18:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-02 09:18:56,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-02 09:18:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-02 09:18:56,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-02 09:18:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:18:56,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:18:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:18:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:18:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-02 09:18:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-02 09:18:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-02-02 09:18:56,639 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-02-02 09:18:56,639 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-02-02 09:18:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-02-02 09:18:56,640 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-02-02 09:18:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:18:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:18:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:18:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:18:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:18:56,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-02 09:18:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-02 09:18:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-02-02 09:18:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:18:56,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:18:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:18:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:18:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:18:56,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:18:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-02 09:18:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-02 09:18:56,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-02-02 09:18:56,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:18:56,644 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:18:56,805 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:18:56,807 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:18:57,109 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:18:57,110 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:18:57,255 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:18:57,255 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-02-02 09:18:57,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:18:57 BoogieIcfgContainer [2024-02-02 09:18:57,257 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:18:57,260 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:18:57,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:18:57,263 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:18:57,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:18:54" (1/4) ... [2024-02-02 09:18:57,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4516f742 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:18:57, skipping insertion in model container [2024-02-02 09:18:57,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:18:56" (2/4) ... [2024-02-02 09:18:57,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4516f742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:18:57, skipping insertion in model container [2024-02-02 09:18:57,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:56" (3/4) ... [2024-02-02 09:18:57,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4516f742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:18:57, skipping insertion in model container [2024-02-02 09:18:57,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:18:57" (4/4) ... [2024-02-02 09:18:57,268 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2024-02-02 09:18:57,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:18:57,282 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-02-02 09:18:57,282 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:18:57,388 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-02-02 09:18:57,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 113 transitions, 268 flow [2024-02-02 09:18:57,480 INFO L124 PetriNetUnfolderBase]: 6/107 cut-off events. [2024-02-02 09:18:57,481 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-02-02 09:18:57,485 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. [2024-02-02 09:18:57,485 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 113 transitions, 268 flow [2024-02-02 09:18:57,490 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 106 transitions, 248 flow [2024-02-02 09:18:57,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:18:57,509 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;@26d26657, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:18:57,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-02-02 09:18:57,512 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:18:57,512 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:18:57,512 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:18:57,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:18:57,513 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:18:57,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 59 more)] === [2024-02-02 09:18:57,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:18:57,518 INFO L85 PathProgramCache]: Analyzing trace with hash 15226, now seen corresponding path program 1 times [2024-02-02 09:18:57,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:18:57,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627965221] [2024-02-02 09:18:57,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:18:57,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:18:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:18:58,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:18:58,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:18:58,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627965221] [2024-02-02 09:18:58,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627965221] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:18:58,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:18:58,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:18:58,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974717138] [2024-02-02 09:18:58,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:18:58,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:18:58,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:18:58,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:18:58,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:18:58,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 113 [2024-02-02 09:18:58,180 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) [2024-02-02 09:18:58,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:18:58,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 113 [2024-02-02 09:18:58,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:19:19,982 INFO L124 PetriNetUnfolderBase]: 296882/377355 cut-off events. [2024-02-02 09:19:19,983 INFO L125 PetriNetUnfolderBase]: For 10404/10404 co-relation queries the response was YES. [2024-02-02 09:19:21,334 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. [2024-02-02 09:19:23,790 INFO L140 encePairwiseOnDemand]: 110/113 looper letters, 60 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2024-02-02 09:19:23,790 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 105 transitions, 370 flow [2024-02-02 09:19:23,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:19:23,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:19:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 210 transitions. [2024-02-02 09:19:23,800 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6194690265486725 [2024-02-02 09:19:23,801 INFO L175 Difference]: Start difference. First operand has 119 places, 106 transitions, 248 flow. Second operand 3 states and 210 transitions. [2024-02-02 09:19:23,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 105 transitions, 370 flow [2024-02-02 09:19:24,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 346 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-02-02 09:19:24,835 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 226 flow [2024-02-02 09:19:24,837 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} [2024-02-02 09:19:24,842 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -11 predicate places. [2024-02-02 09:19:24,844 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 226 flow [2024-02-02 09:19:24,844 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) [2024-02-02 09:19:24,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:19:24,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:19:24,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:19:24,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 59 more)] === [2024-02-02 09:19:24,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:19:24,850 INFO L85 PathProgramCache]: Analyzing trace with hash 472561, now seen corresponding path program 1 times [2024-02-02 09:19:24,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:19:24,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224782095] [2024-02-02 09:19:24,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:19:24,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:19:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:19:24,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:19:24,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:19:24,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224782095] [2024-02-02 09:19:24,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224782095] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:19:24,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:19:24,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:19:24,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138397593] [2024-02-02 09:19:24,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:19:24,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:19:24,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:19:24,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:19:24,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:19:24,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 113 [2024-02-02 09:19:24,994 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) [2024-02-02 09:19:24,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:19:24,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 113 [2024-02-02 09:19:24,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand