./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i --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/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.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/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.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 14:21:34,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:21:34,294 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:21:34,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:21:34,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:21:34,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:21:34,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:21:34,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:21:34,323 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:21:34,326 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:21:34,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:21:34,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:21:34,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:21:34,328 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:21:34,328 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:21:34,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:21:34,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:21:34,329 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:21:34,329 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:21:34,329 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:21:34,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:21:34,330 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:21:34,330 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:21:34,330 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:21:34,330 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:21:34,331 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:21:34,331 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:21:34,331 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:21:34,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:21:34,331 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:21:34,332 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:21:34,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:21:34,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:34,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:21:34,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:21:34,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:21:34,333 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:21:34,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:21:34,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:21:34,333 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:21:34,334 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:21:34,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:21:34,334 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:21:34,334 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:21:34,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:21:34,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:21:34,546 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:21:34,547 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:21:34,547 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:21:34,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-01-30 14:21:35,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:21:35,721 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:21:35,727 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-01-30 14:21:35,737 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364e2c408/d66d39fe23b2450690255be42e5c7087/FLAGa5ec10932 [2024-01-30 14:21:35,775 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364e2c408/d66d39fe23b2450690255be42e5c7087 [2024-01-30 14:21:35,777 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:21:35,778 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:21:35,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.yml/witness.yml [2024-01-30 14:21:35,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:21:35,904 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:21:35,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:35,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:21:35,909 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:21:35,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:35" (1/2) ... [2024-01-30 14:21:35,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf4824a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35, skipping insertion in model container [2024-01-30 14:21:35,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:21:35" (1/2) ... [2024-01-30 14:21:35,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@ca8f431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:21:35, skipping insertion in model container [2024-01-30 14:21:35,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:35" (2/2) ... [2024-01-30 14:21:35,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bf4824a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:35, skipping insertion in model container [2024-01-30 14:21:35,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:35" (2/2) ... [2024-01-30 14:21:35,913 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:21:35,987 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:21:35,988 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-01-30 14:21:35,988 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-01-30 14:21:35,988 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-01-30 14:21:35,989 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (g == 5) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:35,989 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && ((unsigned long )arg == 0UL)) && (g == 0 || g == 5) [2024-01-30 14:21:35,989 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (g == 0) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:35,990 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && ((unsigned long )arg == 0UL)) && (g == 0 || g == 5) [2024-01-30 14:21:35,990 INFO L98 nessWitnessExtractor]: Location invariant before [L696-L696] (unsigned long )arg == 0UL [2024-01-30 14:21:35,990 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && ((unsigned long )arg == 0UL)) && (g == 0 || g == 5) [2024-01-30 14:21:35,990 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g == 0 [2024-01-30 14:21:35,990 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-01-30 14:21:35,990 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (g == 5) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:35,990 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] ((((((((((((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5)) && (0 <= g)) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5)) && (0 <= g)) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-01-30 14:21:35,991 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] (g == 0) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:35,991 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (g == 5) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:35,991 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-01-30 14:21:35,991 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-01-30 14:21:35,991 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-01-30 14:21:35,991 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (g == 0) && ((unsigned long )arg == 0UL) [2024-01-30 14:21:35,991 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-01-30 14:21:35,991 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-30 14:21:36,027 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:21:36,183 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2024-01-30 14:21:36,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:36,293 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:21:36,303 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i[1105,1118] [2024-01-30 14:21:36,304 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } 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 [2024-01-30 14:21:36,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:21:36,410 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:21:36,411 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:21:36 WrapperNode [2024-01-30 14:21:36,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:21:36,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:36,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:21:36,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:21:36,420 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,429 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,462 INFO L138 Inliner]: procedures = 163, calls = 48, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2024-01-30 14:21:36,463 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:21:36,463 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:21:36,464 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:21:36,464 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:21:36,472 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,472 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,485 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,503 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-01-30 14:21:36,505 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,505 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,515 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,525 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,526 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,530 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,532 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:21:36,534 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:21:36,537 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:21:36,537 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:21:36,538 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 02:21:36" (1/1) ... [2024-01-30 14:21:36,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:21:36,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:21:36,565 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 14:21:36,568 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 14:21:36,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:21:36,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:21:36,593 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:21:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:21:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-30 14:21:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:21:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:21:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:21:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:21:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-30 14:21:36,594 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-30 14:21:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:21:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:21:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-30 14:21:36,595 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-30 14:21:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:21:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:21:36,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:21:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:21:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:21:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-30 14:21:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-30 14:21:36,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:21:36,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:21:36,597 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 14:21:36,706 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:21:36,707 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:21:36,957 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:21:36,957 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:21:37,039 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:21:37,039 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:21:37,040 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:37 BoogieIcfgContainer [2024-01-30 14:21:37,040 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:21:37,041 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:21:37,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:21:37,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:21:37,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:21:35" (1/4) ... [2024-01-30 14:21:37,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b023c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:21:37, skipping insertion in model container [2024-01-30 14:21:37,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:21:35" (2/4) ... [2024-01-30 14:21:37,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b023c43 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:21:37, skipping insertion in model container [2024-01-30 14:21:37,046 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 02:21:36" (3/4) ... [2024-01-30 14:21:37,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b023c43 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:21:37, skipping insertion in model container [2024-01-30 14:21:37,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:21:37" (4/4) ... [2024-01-30 14:21:37,047 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-01-30 14:21:37,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:21:37,070 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-01-30 14:21:37,070 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:21:37,141 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-30 14:21:37,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 89 transitions, 185 flow [2024-01-30 14:21:37,194 INFO L124 PetriNetUnfolderBase]: 2/88 cut-off events. [2024-01-30 14:21:37,195 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-30 14:21:37,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 88 events. 2/88 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 139 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2024-01-30 14:21:37,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 89 transitions, 185 flow [2024-01-30 14:21:37,203 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 86 transitions, 175 flow [2024-01-30 14:21:37,210 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:21:37,214 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;@7edf3ae9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:21:37,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-01-30 14:21:37,216 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:21:37,217 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:21:37,217 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:37,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:37,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:21:37,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-30 14:21:37,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:37,221 INFO L85 PathProgramCache]: Analyzing trace with hash 11025, now seen corresponding path program 1 times [2024-01-30 14:21:37,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:37,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142833169] [2024-01-30 14:21:37,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:37,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:37,449 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 14:21:37,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:37,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142833169] [2024-01-30 14:21:37,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142833169] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:37,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:37,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:21:37,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629391256] [2024-01-30 14:21:37,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:37,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:21:37,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:37,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:21:37,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:21:37,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-01-30 14:21:37,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 86 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 14:21:37,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:37,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-01-30 14:21:37,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:37,755 INFO L124 PetriNetUnfolderBase]: 256/941 cut-off events. [2024-01-30 14:21:37,755 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:21:37,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1563 conditions, 941 events. 256/941 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6024 event pairs, 186 based on Foata normal form. 104/1008 useless extension candidates. Maximal degree in co-relation 1552. Up to 400 conditions per place. [2024-01-30 14:21:37,764 INFO L140 encePairwiseOnDemand]: 75/89 looper letters, 52 selfloop transitions, 3 changer transitions 0/97 dead transitions. [2024-01-30 14:21:37,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 97 transitions, 307 flow [2024-01-30 14:21:37,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:21:37,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:21:37,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-01-30 14:21:37,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7378277153558053 [2024-01-30 14:21:37,777 INFO L175 Difference]: Start difference. First operand has 88 places, 86 transitions, 175 flow. Second operand 3 states and 197 transitions. [2024-01-30 14:21:37,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 97 transitions, 307 flow [2024-01-30 14:21:37,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 97 transitions, 306 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:21:37,784 INFO L231 Difference]: Finished difference. Result has 89 places, 83 transitions, 193 flow [2024-01-30 14:21:37,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=193, PETRI_PLACES=89, PETRI_TRANSITIONS=83} [2024-01-30 14:21:37,788 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2024-01-30 14:21:37,788 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 193 flow [2024-01-30 14:21:37,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 14:21:37,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:37,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:21:37,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:21:37,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-30 14:21:37,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:37,790 INFO L85 PathProgramCache]: Analyzing trace with hash 328873473, now seen corresponding path program 1 times [2024-01-30 14:21:37,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:37,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900989237] [2024-01-30 14:21:37,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:37,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:37,938 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 14:21:37,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:37,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900989237] [2024-01-30 14:21:37,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900989237] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:37,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:37,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:37,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145076461] [2024-01-30 14:21:37,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:37,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:37,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:37,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:37,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:38,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 89 [2024-01-30 14:21:38,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 83 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 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 14:21:38,004 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:38,004 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 89 [2024-01-30 14:21:38,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:38,151 INFO L124 PetriNetUnfolderBase]: 168/808 cut-off events. [2024-01-30 14:21:38,151 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2024-01-30 14:21:38,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 808 events. 168/808 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5129 event pairs, 121 based on Foata normal form. 15/739 useless extension candidates. Maximal degree in co-relation 1280. Up to 388 conditions per place. [2024-01-30 14:21:38,156 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 41 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-01-30 14:21:38,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 95 transitions, 303 flow [2024-01-30 14:21:38,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:38,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 261 transitions. [2024-01-30 14:21:38,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7331460674157303 [2024-01-30 14:21:38,175 INFO L175 Difference]: Start difference. First operand has 89 places, 83 transitions, 193 flow. Second operand 4 states and 261 transitions. [2024-01-30 14:21:38,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 95 transitions, 303 flow [2024-01-30 14:21:38,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 95 transitions, 297 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:38,179 INFO L231 Difference]: Finished difference. Result has 88 places, 81 transitions, 187 flow [2024-01-30 14:21:38,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=187, PETRI_PLACES=88, PETRI_TRANSITIONS=81} [2024-01-30 14:21:38,180 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2024-01-30 14:21:38,181 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 81 transitions, 187 flow [2024-01-30 14:21:38,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 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 14:21:38,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:38,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:38,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:21:38,183 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-30 14:21:38,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:38,183 INFO L85 PathProgramCache]: Analyzing trace with hash 649624236, now seen corresponding path program 1 times [2024-01-30 14:21:38,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:38,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872867586] [2024-01-30 14:21:38,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:38,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:38,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:38,325 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 14:21:38,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:38,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872867586] [2024-01-30 14:21:38,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872867586] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:38,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:38,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:21:38,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782267845] [2024-01-30 14:21:38,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:38,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:38,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:38,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:38,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:38,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 89 [2024-01-30 14:21:38,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 81 transitions, 187 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 14:21:38,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:38,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 89 [2024-01-30 14:21:38,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:38,519 INFO L124 PetriNetUnfolderBase]: 312/962 cut-off events. [2024-01-30 14:21:38,519 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-01-30 14:21:38,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1772 conditions, 962 events. 312/962 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5839 event pairs, 46 based on Foata normal form. 0/954 useless extension candidates. Maximal degree in co-relation 1759. Up to 470 conditions per place. [2024-01-30 14:21:38,523 INFO L140 encePairwiseOnDemand]: 79/89 looper letters, 69 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2024-01-30 14:21:38,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 103 transitions, 377 flow [2024-01-30 14:21:38,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:38,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 203 transitions. [2024-01-30 14:21:38,525 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5702247191011236 [2024-01-30 14:21:38,525 INFO L175 Difference]: Start difference. First operand has 88 places, 81 transitions, 187 flow. Second operand 4 states and 203 transitions. [2024-01-30 14:21:38,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 103 transitions, 377 flow [2024-01-30 14:21:38,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 103 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:21:38,528 INFO L231 Difference]: Finished difference. Result has 83 places, 75 transitions, 180 flow [2024-01-30 14:21:38,528 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=180, PETRI_PLACES=83, PETRI_TRANSITIONS=75} [2024-01-30 14:21:38,529 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -5 predicate places. [2024-01-30 14:21:38,529 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 75 transitions, 180 flow [2024-01-30 14:21:38,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 14:21:38,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:38,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:38,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:21:38,531 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-30 14:21:38,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:38,531 INFO L85 PathProgramCache]: Analyzing trace with hash 757150564, now seen corresponding path program 1 times [2024-01-30 14:21:38,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:38,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824407122] [2024-01-30 14:21:38,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:38,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:38,615 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 14:21:38,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:38,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824407122] [2024-01-30 14:21:38,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824407122] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:38,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:38,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:38,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289731287] [2024-01-30 14:21:38,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:38,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:38,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:38,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:38,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:38,678 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 89 [2024-01-30 14:21:38,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 75 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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 14:21:38,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:38,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 89 [2024-01-30 14:21:38,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:38,835 INFO L124 PetriNetUnfolderBase]: 336/1019 cut-off events. [2024-01-30 14:21:38,835 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-01-30 14:21:38,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1914 conditions, 1019 events. 336/1019 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 6170 event pairs, 180 based on Foata normal form. 0/980 useless extension candidates. Maximal degree in co-relation 1901. Up to 402 conditions per place. [2024-01-30 14:21:38,839 INFO L140 encePairwiseOnDemand]: 78/89 looper letters, 61 selfloop transitions, 12 changer transitions 10/113 dead transitions. [2024-01-30 14:21:38,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 113 transitions, 428 flow [2024-01-30 14:21:38,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-30 14:21:38,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-30 14:21:38,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 282 transitions. [2024-01-30 14:21:38,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6337078651685393 [2024-01-30 14:21:38,841 INFO L175 Difference]: Start difference. First operand has 83 places, 75 transitions, 180 flow. Second operand 5 states and 282 transitions. [2024-01-30 14:21:38,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 113 transitions, 428 flow [2024-01-30 14:21:38,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 113 transitions, 416 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-30 14:21:38,845 INFO L231 Difference]: Finished difference. Result has 88 places, 82 transitions, 255 flow [2024-01-30 14:21:38,845 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=255, PETRI_PLACES=88, PETRI_TRANSITIONS=82} [2024-01-30 14:21:38,846 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2024-01-30 14:21:38,846 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 82 transitions, 255 flow [2024-01-30 14:21:38,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.0) internal successors, (164), 4 states have internal predecessors, (164), 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 14:21:38,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:38,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:38,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:21:38,847 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-30 14:21:38,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:38,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1455720440, now seen corresponding path program 1 times [2024-01-30 14:21:38,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:38,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568550797] [2024-01-30 14:21:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:38,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:38,918 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 14:21:38,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:38,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568550797] [2024-01-30 14:21:38,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568550797] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:38,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:38,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-30 14:21:38,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706126716] [2024-01-30 14:21:38,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:38,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:21:38,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:38,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:21:38,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:21:38,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 89 [2024-01-30 14:21:38,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 82 transitions, 255 flow. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 14:21:38,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:38,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 89 [2024-01-30 14:21:38,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:39,083 INFO L124 PetriNetUnfolderBase]: 286/819 cut-off events. [2024-01-30 14:21:39,083 INFO L125 PetriNetUnfolderBase]: For 381/412 co-relation queries the response was YES. [2024-01-30 14:21:39,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 819 events. 286/819 cut-off events. For 381/412 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4619 event pairs, 36 based on Foata normal form. 57/872 useless extension candidates. Maximal degree in co-relation 1768. Up to 420 conditions per place. [2024-01-30 14:21:39,086 INFO L140 encePairwiseOnDemand]: 75/89 looper letters, 48 selfloop transitions, 4 changer transitions 18/95 dead transitions. [2024-01-30 14:21:39,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 95 transitions, 413 flow [2024-01-30 14:21:39,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:39,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 204 transitions. [2024-01-30 14:21:39,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5730337078651685 [2024-01-30 14:21:39,087 INFO L175 Difference]: Start difference. First operand has 88 places, 82 transitions, 255 flow. Second operand 4 states and 204 transitions. [2024-01-30 14:21:39,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 95 transitions, 413 flow [2024-01-30 14:21:39,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 95 transitions, 409 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:21:39,089 INFO L231 Difference]: Finished difference. Result has 79 places, 61 transitions, 185 flow [2024-01-30 14:21:39,090 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=185, PETRI_PLACES=79, PETRI_TRANSITIONS=61} [2024-01-30 14:21:39,090 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -9 predicate places. [2024-01-30 14:21:39,090 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 61 transitions, 185 flow [2024-01-30 14:21:39,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 14:21:39,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:39,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:39,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:21:39,091 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-30 14:21:39,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:39,092 INFO L85 PathProgramCache]: Analyzing trace with hash 954171681, now seen corresponding path program 1 times [2024-01-30 14:21:39,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:39,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688089634] [2024-01-30 14:21:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:39,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:39,195 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 14:21:39,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:39,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688089634] [2024-01-30 14:21:39,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688089634] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:39,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:39,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:21:39,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392689072] [2024-01-30 14:21:39,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:39,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:39,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:39,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:39,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:39,198 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 89 [2024-01-30 14:21:39,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 61 transitions, 185 flow. Second operand has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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 14:21:39,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:39,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 89 [2024-01-30 14:21:39,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:39,281 INFO L124 PetriNetUnfolderBase]: 101/441 cut-off events. [2024-01-30 14:21:39,281 INFO L125 PetriNetUnfolderBase]: For 185/189 co-relation queries the response was YES. [2024-01-30 14:21:39,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 850 conditions, 441 events. 101/441 cut-off events. For 185/189 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2329 event pairs, 46 based on Foata normal form. 6/435 useless extension candidates. Maximal degree in co-relation 833. Up to 173 conditions per place. [2024-01-30 14:21:39,282 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 32 selfloop transitions, 7 changer transitions 6/79 dead transitions. [2024-01-30 14:21:39,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 79 transitions, 327 flow [2024-01-30 14:21:39,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:39,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:39,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 273 transitions. [2024-01-30 14:21:39,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7668539325842697 [2024-01-30 14:21:39,284 INFO L175 Difference]: Start difference. First operand has 79 places, 61 transitions, 185 flow. Second operand 4 states and 273 transitions. [2024-01-30 14:21:39,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 79 transitions, 327 flow [2024-01-30 14:21:39,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 79 transitions, 308 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-01-30 14:21:39,286 INFO L231 Difference]: Finished difference. Result has 72 places, 63 transitions, 196 flow [2024-01-30 14:21:39,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=72, PETRI_TRANSITIONS=63} [2024-01-30 14:21:39,286 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -16 predicate places. [2024-01-30 14:21:39,287 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 63 transitions, 196 flow [2024-01-30 14:21:39,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.2) internal successors, (296), 5 states have internal predecessors, (296), 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 14:21:39,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:39,287 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:39,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:21:39,287 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-30 14:21:39,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:39,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1673317842, now seen corresponding path program 1 times [2024-01-30 14:21:39,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:39,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200041638] [2024-01-30 14:21:39,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:39,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:39,396 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 14:21:39,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:39,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200041638] [2024-01-30 14:21:39,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200041638] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:39,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:39,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:21:39,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563678097] [2024-01-30 14:21:39,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:39,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:39,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:39,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:39,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:39,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 89 [2024-01-30 14:21:39,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 63 transitions, 196 flow. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 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 14:21:39,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:39,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 89 [2024-01-30 14:21:39,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:39,456 INFO L124 PetriNetUnfolderBase]: 80/370 cut-off events. [2024-01-30 14:21:39,456 INFO L125 PetriNetUnfolderBase]: For 168/170 co-relation queries the response was YES. [2024-01-30 14:21:39,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 370 events. 80/370 cut-off events. For 168/170 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1723 event pairs, 32 based on Foata normal form. 4/368 useless extension candidates. Maximal degree in co-relation 733. Up to 129 conditions per place. [2024-01-30 14:21:39,458 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 25 selfloop transitions, 5 changer transitions 7/68 dead transitions. [2024-01-30 14:21:39,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 68 transitions, 280 flow [2024-01-30 14:21:39,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:39,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:39,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 264 transitions. [2024-01-30 14:21:39,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7415730337078652 [2024-01-30 14:21:39,459 INFO L175 Difference]: Start difference. First operand has 72 places, 63 transitions, 196 flow. Second operand 4 states and 264 transitions. [2024-01-30 14:21:39,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 68 transitions, 280 flow [2024-01-30 14:21:39,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 256 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-01-30 14:21:39,460 INFO L231 Difference]: Finished difference. Result has 69 places, 57 transitions, 169 flow [2024-01-30 14:21:39,461 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=169, PETRI_PLACES=69, PETRI_TRANSITIONS=57} [2024-01-30 14:21:39,461 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -19 predicate places. [2024-01-30 14:21:39,461 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 57 transitions, 169 flow [2024-01-30 14:21:39,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 5 states have internal predecessors, (297), 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 14:21:39,461 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:39,461 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:39,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:21:39,462 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-30 14:21:39,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:39,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2044561165, now seen corresponding path program 1 times [2024-01-30 14:21:39,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:39,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891704791] [2024-01-30 14:21:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:39,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:39,593 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 14:21:39,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:39,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891704791] [2024-01-30 14:21:39,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891704791] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:39,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:39,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:21:39,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200500648] [2024-01-30 14:21:39,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:39,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:39,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:39,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:39,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:39,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 89 [2024-01-30 14:21:39,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 57 transitions, 169 flow. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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 14:21:39,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:39,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 89 [2024-01-30 14:21:39,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:39,653 INFO L124 PetriNetUnfolderBase]: 53/287 cut-off events. [2024-01-30 14:21:39,653 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-01-30 14:21:39,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 287 events. 53/287 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1226 event pairs, 21 based on Foata normal form. 17/297 useless extension candidates. Maximal degree in co-relation 567. Up to 85 conditions per place. [2024-01-30 14:21:39,655 INFO L140 encePairwiseOnDemand]: 80/89 looper letters, 15 selfloop transitions, 8 changer transitions 23/69 dead transitions. [2024-01-30 14:21:39,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 69 transitions, 298 flow [2024-01-30 14:21:39,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:39,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:39,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2024-01-30 14:21:39,656 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7528089887640449 [2024-01-30 14:21:39,656 INFO L175 Difference]: Start difference. First operand has 69 places, 57 transitions, 169 flow. Second operand 4 states and 268 transitions. [2024-01-30 14:21:39,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 69 transitions, 298 flow [2024-01-30 14:21:39,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 69 transitions, 270 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-01-30 14:21:39,658 INFO L231 Difference]: Finished difference. Result has 68 places, 43 transitions, 132 flow [2024-01-30 14:21:39,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=132, PETRI_PLACES=68, PETRI_TRANSITIONS=43} [2024-01-30 14:21:39,660 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -20 predicate places. [2024-01-30 14:21:39,660 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 43 transitions, 132 flow [2024-01-30 14:21:39,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 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 14:21:39,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:21:39,661 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:39,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-30 14:21:39,661 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 31 more)] === [2024-01-30 14:21:39,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:21:39,661 INFO L85 PathProgramCache]: Analyzing trace with hash -2084891676, now seen corresponding path program 1 times [2024-01-30 14:21:39,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:21:39,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235504753] [2024-01-30 14:21:39,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:21:39,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:21:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:21:39,858 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 14:21:39,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:21:39,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235504753] [2024-01-30 14:21:39,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235504753] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:21:39,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:21:39,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-30 14:21:39,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100186897] [2024-01-30 14:21:39,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:21:39,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-30 14:21:39,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:21:39,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-30 14:21:39,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-30 14:21:39,861 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 89 [2024-01-30 14:21:39,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 43 transitions, 132 flow. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 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 14:21:39,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:21:39,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 89 [2024-01-30 14:21:39,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:21:39,893 INFO L124 PetriNetUnfolderBase]: 13/107 cut-off events. [2024-01-30 14:21:39,893 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-01-30 14:21:39,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 107 events. 13/107 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 303 event pairs, 0 based on Foata normal form. 10/116 useless extension candidates. Maximal degree in co-relation 195. Up to 41 conditions per place. [2024-01-30 14:21:39,893 INFO L140 encePairwiseOnDemand]: 86/89 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2024-01-30 14:21:39,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 47 transitions, 206 flow [2024-01-30 14:21:39,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:21:39,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:21:39,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 254 transitions. [2024-01-30 14:21:39,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7134831460674157 [2024-01-30 14:21:39,895 INFO L175 Difference]: Start difference. First operand has 68 places, 43 transitions, 132 flow. Second operand 4 states and 254 transitions. [2024-01-30 14:21:39,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 47 transitions, 206 flow [2024-01-30 14:21:39,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 47 transitions, 185 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-30 14:21:39,896 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2024-01-30 14:21:39,896 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=49, PETRI_TRANSITIONS=0} [2024-01-30 14:21:39,897 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -39 predicate places. [2024-01-30 14:21:39,897 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2024-01-30 14:21:39,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 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 14:21:39,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 34 remaining) [2024-01-30 14:21:39,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 34 remaining) [2024-01-30 14:21:39,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 34 remaining) [2024-01-30 14:21:39,902 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (30 of 34 remaining) [2024-01-30 14:21:39,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 34 remaining) [2024-01-30 14:21:39,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 34 remaining) [2024-01-30 14:21:39,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 34 remaining) [2024-01-30 14:21:39,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 34 remaining) [2024-01-30 14:21:39,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (25 of 34 remaining) [2024-01-30 14:21:39,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 34 remaining) [2024-01-30 14:21:39,903 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 34 remaining) [2024-01-30 14:21:39,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 34 remaining) [2024-01-30 14:21:39,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 34 remaining) [2024-01-30 14:21:39,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 34 remaining) [2024-01-30 14:21:39,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 34 remaining) [2024-01-30 14:21:39,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 34 remaining) [2024-01-30 14:21:39,904 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 34 remaining) [2024-01-30 14:21:39,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 34 remaining) [2024-01-30 14:21:39,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 34 remaining) [2024-01-30 14:21:39,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 34 remaining) [2024-01-30 14:21:39,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 34 remaining) [2024-01-30 14:21:39,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 34 remaining) [2024-01-30 14:21:39,906 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 34 remaining) [2024-01-30 14:21:39,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 34 remaining) [2024-01-30 14:21:39,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 34 remaining) [2024-01-30 14:21:39,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 34 remaining) [2024-01-30 14:21:39,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 34 remaining) [2024-01-30 14:21:39,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 34 remaining) [2024-01-30 14:21:39,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 34 remaining) [2024-01-30 14:21:39,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 34 remaining) [2024-01-30 14:21:39,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 34 remaining) [2024-01-30 14:21:39,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 34 remaining) [2024-01-30 14:21:39,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 34 remaining) [2024-01-30 14:21:39,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 34 remaining) [2024-01-30 14:21:39,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-30 14:21:39,909 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:21:39,913 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:21:39,913 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:21:39,917 INFO L503 ceAbstractionStarter]: Automizer considered 20 witness invariants [2024-01-30 14:21:39,917 INFO L504 ceAbstractionStarter]: WitnessConsidered=20 [2024-01-30 14:21:39,918 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:21:39 BasicIcfg [2024-01-30 14:21:39,918 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:21:39,919 INFO L158 Benchmark]: Toolchain (without parser) took 4014.69ms. Allocated memory was 203.4MB in the beginning and 257.9MB in the end (delta: 54.5MB). Free memory was 172.4MB in the beginning and 149.0MB in the end (delta: 23.5MB). Peak memory consumption was 78.0MB. Max. memory is 16.1GB. [2024-01-30 14:21:39,919 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:39,919 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 127.9MB. Free memory was 96.9MB in the beginning and 96.9MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:21:39,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.80ms. Allocated memory is still 203.4MB. Free memory was 172.4MB in the beginning and 147.9MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-30 14:21:39,921 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.27ms. Allocated memory is still 203.4MB. Free memory was 147.9MB in the beginning and 145.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:39,922 INFO L158 Benchmark]: Boogie Preprocessor took 70.38ms. Allocated memory is still 203.4MB. Free memory was 145.8MB in the beginning and 143.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:21:39,922 INFO L158 Benchmark]: RCFGBuilder took 505.71ms. Allocated memory is still 203.4MB. Free memory was 143.1MB in the beginning and 164.0MB in the end (delta: -20.9MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. [2024-01-30 14:21:39,922 INFO L158 Benchmark]: TraceAbstraction took 2877.00ms. Allocated memory was 203.4MB in the beginning and 257.9MB in the end (delta: 54.5MB). Free memory was 162.9MB in the beginning and 149.0MB in the end (delta: 14.0MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2024-01-30 14:21:39,923 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 127.9MB. Free memory was 96.9MB in the beginning and 96.9MB in the end (delta: 26.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.80ms. Allocated memory is still 203.4MB. Free memory was 172.4MB in the beginning and 147.9MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.27ms. Allocated memory is still 203.4MB. Free memory was 147.9MB in the beginning and 145.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.38ms. Allocated memory is still 203.4MB. Free memory was 145.8MB in the beginning and 143.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 505.71ms. Allocated memory is still 203.4MB. Free memory was 143.1MB in the beginning and 164.0MB in the end (delta: -20.9MB). Peak memory consumption was 39.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2877.00ms. Allocated memory was 203.4MB in the beginning and 257.9MB in the end (delta: 54.5MB). Free memory was 162.9MB in the beginning and 149.0MB in the end (delta: 14.0MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 703]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 704]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 705]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 707]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 708]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 709]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 710]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 696]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 129 locations, 34 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.7s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 692 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 518 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 862 IncrementalHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 25 mSDtfsCounter, 862 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=255occurred in iteration=4, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 166 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 157 ConstructedInterpolants, 0 QuantifiedInterpolants, 932 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-30 14:21:39,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE