./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 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-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-59af5db-m [2024-02-02 09:18:53,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:18:53,753 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:18:53,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:18:53,759 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:18:53,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:18:53,799 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:18:53,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:18:53,800 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:18:53,804 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:18:53,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:18:53,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:18:53,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:18:53,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:18:53,807 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:18:53,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:18:53,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:18:53,808 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:18:53,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:18:53,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:18:53,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:18:53,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:18:53,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:18:53,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:18:53,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:18:53,810 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:18:53,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:18:53,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:18:53,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:18:53,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:18:53,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:18:53,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:18:53,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:18:53,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:18:53,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:18:53,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:18:53,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:18:53,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:18:53,815 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:18:53,815 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:18:53,815 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:18:53,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:18:53,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:18:53,816 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:18:54,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:18:54,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:18:54,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:18:54,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:18:54,179 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:18:54,180 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2024-02-02 09:18:55,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:18:55,581 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:18:55,582 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3-opt.wvr.c [2024-02-02 09:18:55,589 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef9f8caa8/c18eb1a3729443b9a118097b46c59659/FLAGbedec0a3b [2024-02-02 09:18:55,604 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef9f8caa8/c18eb1a3729443b9a118097b46c59659 [2024-02-02 09:18:55,609 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:18:55,610 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:18:55,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp3x3-opt.wvr.yml/witness.yml [2024-02-02 09:18:55,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:18:55,734 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:18:55,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:18:55,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:18:55,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:18:55,740 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:18:55" (1/2) ... [2024-02-02 09:18:55,741 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2252547a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:55, skipping insertion in model container [2024-02-02 09:18:55,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:18:55" (1/2) ... [2024-02-02 09:18:55,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@49f9ed3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:18:55, skipping insertion in model container [2024-02-02 09:18:55,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:18:55" (2/2) ... [2024-02-02 09:18:55,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2252547a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:55, skipping insertion in model container [2024-02-02 09:18:55,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:18:55" (2/2) ... [2024-02-02 09:18:55,744 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:18:55,778 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:18:55,779 INFO L101 nessWitnessExtractor]: Loop invariant at [L49-L51] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,780 INFO L101 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,780 INFO L101 nessWitnessExtractor]: Location invariant before [L77-L77] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,780 INFO L101 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,780 INFO L101 nessWitnessExtractor]: Location invariant before [L95-L95] (((x4 == 0U) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-02-02 09:18:55,781 INFO L101 nessWitnessExtractor]: Location invariant after [L41-L43] n == 0U [2024-02-02 09:18:55,781 INFO L101 nessWitnessExtractor]: Loop invariant at [L41-L43] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,781 INFO L101 nessWitnessExtractor]: Location invariant before [L96-L96] ((x5 == 0U) && (x6 == 0U)) && (n == 0U) [2024-02-02 09:18:55,782 INFO L101 nessWitnessExtractor]: Loop invariant at [L65-L67] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,782 INFO L101 nessWitnessExtractor]: Loop invariant at [L81-L83] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,782 INFO L101 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,782 INFO L101 nessWitnessExtractor]: Location invariant before [L61-L61] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,782 INFO L101 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,782 INFO L101 nessWitnessExtractor]: Loop invariant at [L57-L59] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,783 INFO L101 nessWitnessExtractor]: Location invariant before [L98-L98] n == 0U [2024-02-02 09:18:55,783 INFO L101 nessWitnessExtractor]: Location invariant before [L94-L94] ((((x3 == 0U) && (x4 == 0U)) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-02-02 09:18:55,783 INFO L101 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,783 INFO L101 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,783 INFO L101 nessWitnessExtractor]: Location invariant before [L97-L97] (x6 == 0U) && (n == 0U) [2024-02-02 09:18:55,783 INFO L101 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,784 INFO L101 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,784 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,784 INFO L101 nessWitnessExtractor]: Location invariant before [L93-L93] (((((x2 == 0U) && (x3 == 0U)) && (x4 == 0U)) && (x5 == 0U)) && (x6 == 0U)) && (n == 0U) [2024-02-02 09:18:55,785 INFO L101 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,785 INFO L101 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) [2024-02-02 09:18:55,785 INFO L101 nessWitnessExtractor]: Loop invariant at [L73-L75] (unsigned long )_argptr == 0UL [2024-02-02 09:18:55,809 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:18:56,003 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] [2024-02-02 09:18:56,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:18:56,020 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 [2024-02-02 09:18:56,086 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] [2024-02-02 09:18:56,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:18:56,105 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:18:56,106 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56 WrapperNode [2024-02-02 09:18:56,106 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:18:56,107 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:18:56,107 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:18:56,107 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:18:56,114 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 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,139 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 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,211 INFO L138 Inliner]: procedures = 25, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 138 [2024-02-02 09:18:56,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:18:56,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:18:56,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:18:56,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:18:56,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,294 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 09:18:56,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,295 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,330 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,333 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:18:56,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:18:56,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:18:56,348 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:18:56,349 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56" (1/1) ... [2024-02-02 09:18:56,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:18:56,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:18:56,386 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 09:18:56,410 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 09:18:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:18:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:18:56,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:18:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:18:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:18:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:18:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-02 09:18:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-02-02 09:18:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-02-02 09:18:56,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:18:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:18:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:18:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:18:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-02 09:18:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-02-02 09:18:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-02-02 09:18:56,427 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:18:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:18:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:18:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:18:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-02 09:18:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-02 09:18:56,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-02 09:18:56,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-02 09:18:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:18:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:18:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:18:56,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:18:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-02 09:18:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-02-02 09:18:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-02-02 09:18:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-02-02 09:18:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-02-02 09:18:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-02-02 09:18:56,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-02-02 09:18:56,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:18:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:18:56,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:18:56,433 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 09:18:56,582 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:18:56,586 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:18:56,955 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:18:56,955 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:18:57,182 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:18:57,182 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-02-02 09:18:57,183 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:18:57 BoogieIcfgContainer [2024-02-02 09:18:57,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:18:57,188 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:18:57,188 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:18:57,192 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:18:57,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:18:55" (1/4) ... [2024-02-02 09:18:57,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f2b880 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 09:18:57,194 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:18:55" (2/4) ... [2024-02-02 09:18:57,194 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f2b880 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 09:18:57,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:18:56" (3/4) ... [2024-02-02 09:18:57,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f2b880 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 09:18:57,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:18:57" (4/4) ... [2024-02-02 09:18:57,198 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3-opt.wvr.c [2024-02-02 09:18:57,215 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:18:57,215 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2024-02-02 09:18:57,216 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:18:57,321 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-02-02 09:18:57,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 115 transitions, 272 flow [2024-02-02 09:18:57,434 INFO L124 PetriNetUnfolderBase]: 6/109 cut-off events. [2024-02-02 09:18:57,434 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-02-02 09:18:57,440 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. [2024-02-02 09:18:57,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 128 places, 115 transitions, 272 flow [2024-02-02 09:18:57,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 108 transitions, 252 flow [2024-02-02 09:18:57,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:18:57,469 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;@19cfab04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:18:57,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2024-02-02 09:18:57,474 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:18:57,475 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:18:57,475 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:18:57,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:18:57,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:18:57,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-02-02 09:18:57,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:18:57,481 INFO L85 PathProgramCache]: Analyzing trace with hash 15221, now seen corresponding path program 1 times [2024-02-02 09:18:57,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:18:57,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249724125] [2024-02-02 09:18:57,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:18:57,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:18:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:18:58,279 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 09:18:58,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:18:58,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249724125] [2024-02-02 09:18:58,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249724125] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:18:58,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:18:58,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:18:58,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230862705] [2024-02-02 09:18:58,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:18:58,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:18:58,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:18:58,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:18:58,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:18:58,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 115 [2024-02-02 09:18:58,380 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) [2024-02-02 09:18:58,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:18:58,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 115 [2024-02-02 09:18:58,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:19:28,896 INFO L124 PetriNetUnfolderBase]: 345068/440790 cut-off events. [2024-02-02 09:19:28,896 INFO L125 PetriNetUnfolderBase]: For 10902/10902 co-relation queries the response was YES. [2024-02-02 09:19:30,587 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. [2024-02-02 09:19:34,501 INFO L140 encePairwiseOnDemand]: 112/115 looper letters, 61 selfloop transitions, 2 changer transitions 0/107 dead transitions. [2024-02-02 09:19:34,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 107 transitions, 376 flow [2024-02-02 09:19:34,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:19:34,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:19:34,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2024-02-02 09:19:34,513 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6202898550724638 [2024-02-02 09:19:34,514 INFO L175 Difference]: Start difference. First operand has 121 places, 108 transitions, 252 flow. Second operand 3 states and 214 transitions. [2024-02-02 09:19:34,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 107 transitions, 376 flow [2024-02-02 09:19:35,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 107 transitions, 352 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-02-02 09:19:35,862 INFO L231 Difference]: Finished difference. Result has 110 places, 107 transitions, 230 flow [2024-02-02 09:19:35,864 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} [2024-02-02 09:19:35,867 INFO L281 CegarLoopForPetriNet]: 121 programPoint places, -11 predicate places. [2024-02-02 09:19:35,867 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 107 transitions, 230 flow [2024-02-02 09:19:35,868 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) [2024-02-02 09:19:35,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:19:35,868 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:19:35,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:19:35,869 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 61 more)] === [2024-02-02 09:19:35,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:19:35,869 INFO L85 PathProgramCache]: Analyzing trace with hash 472331, now seen corresponding path program 1 times [2024-02-02 09:19:35,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:19:35,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030823691] [2024-02-02 09:19:35,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:19:35,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:19:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:19:35,960 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 09:19:35,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:19:35,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030823691] [2024-02-02 09:19:35,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030823691] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:19:35,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:19:35,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:19:35,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594167889] [2024-02-02 09:19:35,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:19:35,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:19:35,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:19:35,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:19:35,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:19:35,990 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 115 [2024-02-02 09:19:35,992 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) [2024-02-02 09:19:35,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:19:35,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 115 [2024-02-02 09:19:35,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand