./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 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-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-3d25acf-m [2024-01-30 14:22:44,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:22:44,373 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:22:44,378 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:22:44,379 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:22:44,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:22:44,406 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:22:44,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:22:44,407 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:22:44,411 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:22:44,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:22:44,412 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:22:44,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:22:44,414 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:22:44,414 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:22:44,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:22:44,415 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:22:44,415 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:22:44,415 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:22:44,416 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:22:44,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:22:44,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:22:44,417 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:22:44,417 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:22:44,417 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:22:44,417 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:22:44,418 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:22:44,418 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:22:44,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:22:44,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:22:44,420 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:22:44,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:22:44,420 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:22:44,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:22:44,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:22:44,421 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:22:44,421 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:22:44,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:22:44,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:22:44,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:22:44,422 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:22:44,422 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:22:44,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:22:44,423 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:22:44,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:22:44,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:22:44,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:22:44,728 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:22:44,728 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:22:44,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2024-01-30 14:22:45,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:22:46,130 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:22:46,131 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2024-01-30 14:22:46,138 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31b19f39f/f7d18b3359f84cf0bf5cd1307a7db75e/FLAG616eddd53 [2024-01-30 14:22:46,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31b19f39f/f7d18b3359f84cf0bf5cd1307a7db75e [2024-01-30 14:22:46,153 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:22:46,154 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:22:46,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp3x3-opt.wvr.yml/witness.yml [2024-01-30 14:22:46,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:22:46,246 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:22:46,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:22:46,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:22:46,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:22:46,252 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:22:46" (1/2) ... [2024-01-30 14:22:46,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc5e8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:46, skipping insertion in model container [2024-01-30 14:22:46,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:22:46" (1/2) ... [2024-01-30 14:22:46,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2caea827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:22:46, skipping insertion in model container [2024-01-30 14:22:46,256 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:22:46" (2/2) ... [2024-01-30 14:22:46,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc5e8be and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46, skipping insertion in model container [2024-01-30 14:22:46,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:22:46" (2/2) ... [2024-01-30 14:22:46,257 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:22:46,287 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:22:46,288 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] (((x4 == 0U) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-01-30 14:22:46,288 INFO L98 nessWitnessExtractor]: Loop invariant at [L41-L43] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,288 INFO L98 nessWitnessExtractor]: Location invariant after [L41-L43] n == 0U [2024-01-30 14:22:46,288 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,289 INFO L98 nessWitnessExtractor]: Location invariant before [L96-L96] ((x5 == 0U) && (x6 == 0U)) && (n == 0U) [2024-01-30 14:22:46,289 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] n == 0U [2024-01-30 14:22:46,289 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (((((((((((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 14:22:46,289 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] (((((x2 == 0U) && (x3 == 0U)) && (x4 == 0U)) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-01-30 14:22:46,289 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,289 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,290 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,290 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,290 INFO L98 nessWitnessExtractor]: Loop invariant at [L81-L83] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,290 INFO L98 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,290 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,290 INFO L98 nessWitnessExtractor]: Loop invariant at [L49-L51] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,291 INFO L98 nessWitnessExtractor]: Loop invariant at [L65-L67] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,291 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] ((((x3 == 0U) && (x4 == 0U)) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-01-30 14:22:46,291 INFO L98 nessWitnessExtractor]: Loop invariant at [L73-L75] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,291 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (x6 == 0U) && (n == 0U) [2024-01-30 14:22:46,291 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,292 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,292 INFO L98 nessWitnessExtractor]: Loop invariant at [L57-L59] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,292 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,292 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,292 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-30 14:22:46,316 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:22:46,484 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] [2024-01-30 14:22:46,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:22:46,496 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 [2024-01-30 14:22:46,566 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] [2024-01-30 14:22:46,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:22:46,581 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:22:46,581 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46 WrapperNode [2024-01-30 14:22:46,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:22:46,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:22:46,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:22:46,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:22:46,589 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 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,598 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 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,627 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 138 [2024-01-30 14:22:46,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:22:46,628 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:22:46,628 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:22:46,628 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:22:46,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,646 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,665 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 14:22:46,666 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,685 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,708 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:22:46,712 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:22:46,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:22:46,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:22:46,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46" (1/1) ... [2024-01-30 14:22:46,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:22:46,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:22:46,753 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 14:22:46,776 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 14:22:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:22:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:22:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:22:46,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:22:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:22:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:22:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-30 14:22:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-30 14:22:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-30 14:22:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:22:46,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:22:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:22:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:22:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-30 14:22:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-30 14:22:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-30 14:22:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:22:46,796 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:22:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:22:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:22:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-30 14:22:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-30 14:22:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-30 14:22:46,797 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-30 14:22:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:22:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:22:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:22:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:22:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-30 14:22:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-30 14:22:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-30 14:22:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-01-30 14:22:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-01-30 14:22:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-01-30 14:22:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-01-30 14:22:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:22:46,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:22:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:22:46,802 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 14:22:46,947 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:22:46,948 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:22:47,319 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:22:47,320 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:22:47,524 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:22:47,524 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-01-30 14:22:47,526 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:22:47 BoogieIcfgContainer [2024-01-30 14:22:47,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:22:47,529 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:22:47,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:22:47,533 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:22:47,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:22:46" (1/4) ... [2024-01-30 14:22:47,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4073ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:22:47, skipping insertion in model container [2024-01-30 14:22:47,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:22:46" (2/4) ... [2024-01-30 14:22:47,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4073ea and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:22:47, skipping insertion in model container [2024-01-30 14:22:47,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:22:46" (3/4) ... [2024-01-30 14:22:47,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4073ea and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:22:47, skipping insertion in model container [2024-01-30 14:22:47,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:22:47" (4/4) ... [2024-01-30 14:22:47,540 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2024-01-30 14:22:47,556 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:22:47,557 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2024-01-30 14:22:47,557 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:22:47,653 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-01-30 14:22:47,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 115 transitions, 272 flow [2024-01-30 14:22:47,756 INFO L124 PetriNetUnfolderBase]: 6/109 cut-off events. [2024-01-30 14:22:47,757 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-30 14:22:47,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 109 events. 6/109 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 314 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 92. Up to 2 conditions per place. [2024-01-30 14:22:47,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 115 transitions, 272 flow [2024-01-30 14:22:47,768 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 108 transitions, 252 flow [2024-01-30 14:22:47,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:22:47,787 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;@4347b7c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:22:47,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2024-01-30 14:22:47,792 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:22:47,792 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:22:47,792 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:22:47,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:22:47,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:22:47,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-30 14:22:47,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:22:47,798 INFO L85 PathProgramCache]: Analyzing trace with hash 15221, now seen corresponding path program 1 times [2024-01-30 14:22:47,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:22:47,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837379036] [2024-01-30 14:22:47,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:22:47,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:22:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:22:48,602 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 14:22:48,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:22:48,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837379036] [2024-01-30 14:22:48,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837379036] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:22:48,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:22:48,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:22:48,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840379276] [2024-01-30 14:22:48,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:22:48,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:22:48,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:22:48,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:22:48,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:22:48,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 115 [2024-01-30 14:22:48,699 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 108 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 14:22:48,699 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:22:48,699 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 115 [2024-01-30 14:22:48,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:23:18,644 INFO L124 PetriNetUnfolderBase]: 345068/440790 cut-off events. [2024-01-30 14:23:18,644 INFO L125 PetriNetUnfolderBase]: For 10902/10902 co-relation queries the response was YES. [2024-01-30 14:23:20,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851253 conditions, 440790 events. 345068/440790 cut-off events. For 10902/10902 co-relation queries the response was YES. Maximal size of possible extension queue 17508. Compared 2978260 event pairs, 228127 based on Foata normal form. 0/300203 useless extension candidates. Maximal degree in co-relation 742618. Up to 397175 conditions per place. [2024-01-30 14:23:23,562 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 61 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2024-01-30 14:23:23,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 107 transitions, 376 flow [2024-01-30 14:23:23,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:23:23,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:23:23,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2024-01-30 14:23:23,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6202898550724638 [2024-01-30 14:23:23,576 INFO L175 Difference]: Start difference. First operand has 121 places, 108 transitions, 252 flow. Second operand 3 states and 214 transitions. [2024-01-30 14:23:23,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 107 transitions, 376 flow [2024-01-30 14:23:25,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 107 transitions, 352 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-01-30 14:23:25,014 INFO L231 Difference]: Finished difference. Result has 110 places, 107 transitions, 230 flow [2024-01-30 14:23:25,016 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=115, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=110, PETRI_TRANSITIONS=107} [2024-01-30 14:23:25,019 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -11 predicate places. [2024-01-30 14:23:25,019 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 107 transitions, 230 flow [2024-01-30 14:23:25,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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 14:23:25,022 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:23:25,024 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:23:25,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:23:25,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-01-30 14:23:25,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:23:25,031 INFO L85 PathProgramCache]: Analyzing trace with hash 472331, now seen corresponding path program 1 times [2024-01-30 14:23:25,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:23:25,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313037960] [2024-01-30 14:23:25,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:23:25,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:23:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:23:25,170 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 14:23:25,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:23:25,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313037960] [2024-01-30 14:23:25,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313037960] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:23:25,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:23:25,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:23:25,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611278025] [2024-01-30 14:23:25,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:23:25,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:23:25,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:23:25,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:23:25,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:23:25,200 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 115 [2024-01-30 14:23:25,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 107 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 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 14:23:25,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:23:25,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 115 [2024-01-30 14:23:25,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand