./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 59af5db6 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/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-59af5db-m [2024-02-02 09:17:38,524 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:17:38,578 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:17:38,586 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:17:38,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:17:38,616 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:17:38,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:17:38,618 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:17:38,618 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:17:38,620 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:17:38,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:17:38,620 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:17:38,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:17:38,624 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:17:38,624 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:17:38,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:17:38,625 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:17:38,625 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:17:38,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:17:38,626 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:17:38,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:17:38,626 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:17:38,626 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:17:38,627 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:17:38,627 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:17:38,627 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:17:38,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:17:38,627 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:17:38,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:17:38,628 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:17:38,629 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:17:38,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:17:38,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:38,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:17:38,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:17:38,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:17:38,630 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:17:38,630 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:17:38,630 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:17:38,631 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:17:38,631 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:17:38,631 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:17:38,631 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:17:38,631 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:17:38,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:17:38,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:17:38,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:17:38,871 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:17:38,872 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:17:38,873 INFO L431 ainManager$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 [2024-02-02 09:17:38,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:17:38,987 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:17:38,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-02-02 09:17:40,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:17:40,265 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:17:40,265 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-02-02 09:17:40,281 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97818262f/f657a84ea6b645d3a97e2e73510a2947/FLAG2596f155f [2024-02-02 09:17:40,297 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97818262f/f657a84ea6b645d3a97e2e73510a2947 [2024-02-02 09:17:40,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:17:40,301 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:17:40,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:40,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:17:40,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:17:40,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:38" (1/2) ... [2024-02-02 09:17:40,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c53b152 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:40, skipping insertion in model container [2024-02-02 09:17:40,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:38" (1/2) ... [2024-02-02 09:17:40,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e6a7355 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:17:40, skipping insertion in model container [2024-02-02 09:17:40,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:40" (2/2) ... [2024-02-02 09:17:40,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c53b152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40, skipping insertion in model container [2024-02-02 09:17:40,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:17:40" (2/2) ... [2024-02-02 09:17:40,312 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:17:40,381 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:17:40,383 INFO L101 nessWitnessExtractor]: Location invariant before [L694-L694] (g == 0) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:40,383 INFO L101 nessWitnessExtractor]: Location invariant before [L700-L700] g == 0 [2024-02-02 09:17:40,383 INFO L101 nessWitnessExtractor]: Location invariant before [L707-L707] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-02-02 09:17:40,383 INFO L101 nessWitnessExtractor]: Location invariant before [L702-L702] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-02-02 09:17:40,383 INFO L101 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) [2024-02-02 09:17:40,384 INFO L101 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-02-02 09:17:40,384 INFO L101 nessWitnessExtractor]: Location invariant before [L703-L703] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-02-02 09:17:40,384 INFO L101 nessWitnessExtractor]: Location invariant before [L695-L695] (g == 0) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:40,384 INFO L101 nessWitnessExtractor]: Location invariant before [L705-L705] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-02-02 09:17:40,384 INFO L101 nessWitnessExtractor]: Location invariant before [L693-L693] (g == 0) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:40,385 INFO L101 nessWitnessExtractor]: Location invariant before [L691-L691] (g == 5) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:40,385 INFO L101 nessWitnessExtractor]: Location invariant before [L688-L688] (((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && ((unsigned long )arg == 0UL)) && (g == 0 || g == 5) [2024-02-02 09:17:40,385 INFO L101 nessWitnessExtractor]: Location invariant before [L692-L692] (g == 5) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:40,385 INFO L101 nessWitnessExtractor]: Location invariant before [L687-L687] (((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && ((unsigned long )arg == 0UL)) && (g == 0 || g == 5) [2024-02-02 09:17:40,385 INFO L101 nessWitnessExtractor]: Location invariant before [L696-L696] (unsigned long )arg == 0UL [2024-02-02 09:17:40,385 INFO L101 nessWitnessExtractor]: Location invariant before [L709-L709] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-02-02 09:17:40,385 INFO L101 nessWitnessExtractor]: Location invariant before [L690-L690] (g == 5) && ((unsigned long )arg == 0UL) [2024-02-02 09:17:40,385 INFO L101 nessWitnessExtractor]: Location invariant before [L689-L689] (((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && ((unsigned long )arg == 0UL)) && (g == 0 || g == 5) [2024-02-02 09:17:40,386 INFO L101 nessWitnessExtractor]: Location invariant before [L704-L704] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-02-02 09:17:40,386 INFO L101 nessWitnessExtractor]: Location invariant before [L708-L708] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-02-02 09:17:40,386 INFO L101 nessWitnessExtractor]: Location invariant before [L710-L710] ((((0 <= g) && (g <= 5)) && (g <= 127)) && (g % 5 == 0)) && (g == 0 || g == 5) [2024-02-02 09:17:40,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:17:40,577 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] [2024-02-02 09:17:40,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:40,729 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:17:40,738 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] [2024-02-02 09:17:40,739 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 [2024-02-02 09:17:40,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:17:40,848 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:17:40,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40 WrapperNode [2024-02-02 09:17:40,849 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:17:40,850 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:40,850 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:17:40,850 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:17:40,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,891 INFO L138 Inliner]: procedures = 163, calls = 48, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2024-02-02 09:17:40,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:17:40,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:17:40,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:17:40,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:17:40,900 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,903 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,915 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 2, 5, 5]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 0, 5, 5]. The 1 writes are split as follows [0, 0, 1, 0, 0]. [2024-02-02 09:17:40,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,916 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,922 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:17:40,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:17:40,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:17:40,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:17:40,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (1/1) ... [2024-02-02 09:17:40,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:17:41,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:17:41,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-02 09:17:41,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-02 09:17:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:17:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:17:41,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:17:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:17:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-02 09:17:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:17:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:17:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:17:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:17:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-02 09:17:41,111 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-02-02 09:17:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:17:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:17:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-02-02 09:17:41,112 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-02-02 09:17:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:17:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:17:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:17:41,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:17:41,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:17:41,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-02 09:17:41,113 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-02-02 09:17:41,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:17:41,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:17:41,114 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:17:41,227 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:17:41,229 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:17:41,477 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:17:41,477 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:17:41,581 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:17:41,581 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-02-02 09:17:41,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:41 BoogieIcfgContainer [2024-02-02 09:17:41,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:17:41,583 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:17:41,583 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:17:41,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:17:41,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:17:38" (1/4) ... [2024-02-02 09:17:41,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6911ee61 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:17:41, skipping insertion in model container [2024-02-02 09:17:41,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:17:40" (2/4) ... [2024-02-02 09:17:41,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6911ee61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:17:41, skipping insertion in model container [2024-02-02 09:17:41,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:17:40" (3/4) ... [2024-02-02 09:17:41,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6911ee61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:17:41, skipping insertion in model container [2024-02-02 09:17:41,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:17:41" (4/4) ... [2024-02-02 09:17:41,588 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_32-traces-mine-vs-oplus-vs-meet_true.i [2024-02-02 09:17:41,602 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:17:41,602 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-02-02 09:17:41,603 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:17:41,678 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-02-02 09:17:41,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 89 transitions, 185 flow [2024-02-02 09:17:41,737 INFO L124 PetriNetUnfolderBase]: 2/88 cut-off events. [2024-02-02 09:17:41,737 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-02-02 09:17:41,740 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. [2024-02-02 09:17:41,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 89 transitions, 185 flow [2024-02-02 09:17:41,743 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 86 transitions, 175 flow [2024-02-02 09:17:41,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:17:41,754 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;@5a934926, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:17:41,755 INFO L358 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-02-02 09:17:41,757 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:17:41,757 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:17:41,757 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:17:41,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:41,757 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:17:41,758 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)] === [2024-02-02 09:17:41,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:41,761 INFO L85 PathProgramCache]: Analyzing trace with hash 11025, now seen corresponding path program 1 times [2024-02-02 09:17:41,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:41,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12181029] [2024-02-02 09:17:41,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:41,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:41,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:41,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:41,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12181029] [2024-02-02 09:17:41,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12181029] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:41,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:41,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:17:41,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167107740] [2024-02-02 09:17:41,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:41,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:17:41,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:42,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:17:42,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:17:42,056 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 89 [2024-02-02 09:17:42,058 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) [2024-02-02 09:17:42,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:42,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 89 [2024-02-02 09:17:42,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:42,305 INFO L124 PetriNetUnfolderBase]: 256/941 cut-off events. [2024-02-02 09:17:42,306 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:17:42,310 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. [2024-02-02 09:17:42,315 INFO L140 encePairwiseOnDemand]: 75/89 looper letters, 52 selfloop transitions, 3 changer transitions 0/97 dead transitions. [2024-02-02 09:17:42,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 97 transitions, 307 flow [2024-02-02 09:17:42,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:17:42,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:17:42,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-02-02 09:17:42,328 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7378277153558053 [2024-02-02 09:17:42,330 INFO L175 Difference]: Start difference. First operand has 88 places, 86 transitions, 175 flow. Second operand 3 states and 197 transitions. [2024-02-02 09:17:42,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 97 transitions, 307 flow [2024-02-02 09:17:42,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 97 transitions, 306 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:17:42,336 INFO L231 Difference]: Finished difference. Result has 89 places, 83 transitions, 193 flow [2024-02-02 09:17:42,338 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} [2024-02-02 09:17:42,341 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2024-02-02 09:17:42,341 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 83 transitions, 193 flow [2024-02-02 09:17:42,341 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) [2024-02-02 09:17:42,341 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:42,341 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-02 09:17:42,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:17:42,341 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)] === [2024-02-02 09:17:42,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:42,342 INFO L85 PathProgramCache]: Analyzing trace with hash 328873473, now seen corresponding path program 1 times [2024-02-02 09:17:42,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:42,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803622342] [2024-02-02 09:17:42,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:42,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:42,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:42,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803622342] [2024-02-02 09:17:42,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803622342] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:42,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:42,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:42,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450282785] [2024-02-02 09:17:42,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:42,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:42,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:42,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:42,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:42,555 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 89 [2024-02-02 09:17:42,557 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) [2024-02-02 09:17:42,557 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:42,557 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 89 [2024-02-02 09:17:42,557 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:42,676 INFO L124 PetriNetUnfolderBase]: 168/808 cut-off events. [2024-02-02 09:17:42,676 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2024-02-02 09:17:42,677 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. [2024-02-02 09:17:42,679 INFO L140 encePairwiseOnDemand]: 85/89 looper letters, 41 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-02-02 09:17:42,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 95 transitions, 303 flow [2024-02-02 09:17:42,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:42,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:42,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 261 transitions. [2024-02-02 09:17:42,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7331460674157303 [2024-02-02 09:17:42,681 INFO L175 Difference]: Start difference. First operand has 89 places, 83 transitions, 193 flow. Second operand 4 states and 261 transitions. [2024-02-02 09:17:42,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 95 transitions, 303 flow [2024-02-02 09:17:42,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 95 transitions, 297 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:42,684 INFO L231 Difference]: Finished difference. Result has 88 places, 81 transitions, 187 flow [2024-02-02 09:17:42,684 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} [2024-02-02 09:17:42,684 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2024-02-02 09:17:42,685 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 81 transitions, 187 flow [2024-02-02 09:17:42,685 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) [2024-02-02 09:17:42,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:42,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:42,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:17:42,685 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)] === [2024-02-02 09:17:42,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:42,685 INFO L85 PathProgramCache]: Analyzing trace with hash 649624236, now seen corresponding path program 1 times [2024-02-02 09:17:42,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:42,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188365592] [2024-02-02 09:17:42,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:42,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:42,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:42,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:42,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188365592] [2024-02-02 09:17:42,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188365592] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:42,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:42,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:17:42,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059340957] [2024-02-02 09:17:42,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:42,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:42,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:42,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:42,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:42,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 89 [2024-02-02 09:17:42,843 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) [2024-02-02 09:17:42,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:42,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 89 [2024-02-02 09:17:42,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:42,971 INFO L124 PetriNetUnfolderBase]: 312/962 cut-off events. [2024-02-02 09:17:42,971 INFO L125 PetriNetUnfolderBase]: For 62/62 co-relation queries the response was YES. [2024-02-02 09:17:42,972 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. [2024-02-02 09:17:42,975 INFO L140 encePairwiseOnDemand]: 79/89 looper letters, 69 selfloop transitions, 4 changer transitions 0/103 dead transitions. [2024-02-02 09:17:42,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 103 transitions, 377 flow [2024-02-02 09:17:42,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:42,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:42,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 203 transitions. [2024-02-02 09:17:42,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5702247191011236 [2024-02-02 09:17:42,977 INFO L175 Difference]: Start difference. First operand has 88 places, 81 transitions, 187 flow. Second operand 4 states and 203 transitions. [2024-02-02 09:17:42,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 103 transitions, 377 flow [2024-02-02 09:17:42,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 103 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:17:42,978 INFO L231 Difference]: Finished difference. Result has 83 places, 75 transitions, 180 flow [2024-02-02 09:17:42,979 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} [2024-02-02 09:17:42,979 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -5 predicate places. [2024-02-02 09:17:42,979 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 75 transitions, 180 flow [2024-02-02 09:17:42,979 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) [2024-02-02 09:17:42,979 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:42,980 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:42,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:17:42,980 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)] === [2024-02-02 09:17:42,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:42,980 INFO L85 PathProgramCache]: Analyzing trace with hash 757150564, now seen corresponding path program 1 times [2024-02-02 09:17:42,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:42,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391658995] [2024-02-02 09:17:42,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:42,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:43,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:43,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:43,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391658995] [2024-02-02 09:17:43,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391658995] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:43,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:43,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:43,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100701132] [2024-02-02 09:17:43,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:43,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:43,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:43,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:43,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:43,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 89 [2024-02-02 09:17:43,086 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) [2024-02-02 09:17:43,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:43,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 89 [2024-02-02 09:17:43,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:43,232 INFO L124 PetriNetUnfolderBase]: 336/1019 cut-off events. [2024-02-02 09:17:43,232 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2024-02-02 09:17:43,233 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. [2024-02-02 09:17:43,236 INFO L140 encePairwiseOnDemand]: 78/89 looper letters, 61 selfloop transitions, 12 changer transitions 10/113 dead transitions. [2024-02-02 09:17:43,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 113 transitions, 428 flow [2024-02-02 09:17:43,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-02-02 09:17:43,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-02-02 09:17:43,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 282 transitions. [2024-02-02 09:17:43,237 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6337078651685393 [2024-02-02 09:17:43,237 INFO L175 Difference]: Start difference. First operand has 83 places, 75 transitions, 180 flow. Second operand 5 states and 282 transitions. [2024-02-02 09:17:43,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 113 transitions, 428 flow [2024-02-02 09:17:43,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 113 transitions, 416 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-02-02 09:17:43,240 INFO L231 Difference]: Finished difference. Result has 88 places, 82 transitions, 255 flow [2024-02-02 09:17:43,240 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} [2024-02-02 09:17:43,241 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 0 predicate places. [2024-02-02 09:17:43,241 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 82 transitions, 255 flow [2024-02-02 09:17:43,241 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) [2024-02-02 09:17:43,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:43,241 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:43,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-02-02 09:17:43,242 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)] === [2024-02-02 09:17:43,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:43,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1455720440, now seen corresponding path program 1 times [2024-02-02 09:17:43,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:43,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449800350] [2024-02-02 09:17:43,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:43,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:43,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:43,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:43,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449800350] [2024-02-02 09:17:43,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449800350] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:43,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:43,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:17:43,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597282376] [2024-02-02 09:17:43,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:43,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:17:43,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:43,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:17:43,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:17:43,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 89 [2024-02-02 09:17:43,348 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) [2024-02-02 09:17:43,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:43,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 89 [2024-02-02 09:17:43,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:43,468 INFO L124 PetriNetUnfolderBase]: 286/819 cut-off events. [2024-02-02 09:17:43,468 INFO L125 PetriNetUnfolderBase]: For 381/412 co-relation queries the response was YES. [2024-02-02 09:17:43,469 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. [2024-02-02 09:17:43,471 INFO L140 encePairwiseOnDemand]: 75/89 looper letters, 48 selfloop transitions, 4 changer transitions 18/95 dead transitions. [2024-02-02 09:17:43,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 95 transitions, 413 flow [2024-02-02 09:17:43,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:43,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:43,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 204 transitions. [2024-02-02 09:17:43,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5730337078651685 [2024-02-02 09:17:43,475 INFO L175 Difference]: Start difference. First operand has 88 places, 82 transitions, 255 flow. Second operand 4 states and 204 transitions. [2024-02-02 09:17:43,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 95 transitions, 413 flow [2024-02-02 09:17:43,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 95 transitions, 409 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-02-02 09:17:43,480 INFO L231 Difference]: Finished difference. Result has 79 places, 61 transitions, 185 flow [2024-02-02 09:17:43,481 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} [2024-02-02 09:17:43,483 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -9 predicate places. [2024-02-02 09:17:43,483 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 61 transitions, 185 flow [2024-02-02 09:17:43,483 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) [2024-02-02 09:17:43,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:43,483 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] [2024-02-02 09:17:43,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-02-02 09:17:43,484 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)] === [2024-02-02 09:17:43,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:43,484 INFO L85 PathProgramCache]: Analyzing trace with hash 954171681, now seen corresponding path program 1 times [2024-02-02 09:17:43,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:43,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392948884] [2024-02-02 09:17:43,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:43,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:43,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:43,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:43,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392948884] [2024-02-02 09:17:43,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392948884] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:43,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:43,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:17:43,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120721134] [2024-02-02 09:17:43,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:43,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:43,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:43,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:43,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:43,667 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 89 [2024-02-02 09:17:43,667 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) [2024-02-02 09:17:43,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:43,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 89 [2024-02-02 09:17:43,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:43,750 INFO L124 PetriNetUnfolderBase]: 101/441 cut-off events. [2024-02-02 09:17:43,750 INFO L125 PetriNetUnfolderBase]: For 185/189 co-relation queries the response was YES. [2024-02-02 09:17:43,751 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. [2024-02-02 09:17:43,752 INFO L140 encePairwiseOnDemand]: 81/89 looper letters, 32 selfloop transitions, 7 changer transitions 6/79 dead transitions. [2024-02-02 09:17:43,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 79 transitions, 327 flow [2024-02-02 09:17:43,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:43,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 273 transitions. [2024-02-02 09:17:43,753 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7668539325842697 [2024-02-02 09:17:43,754 INFO L175 Difference]: Start difference. First operand has 79 places, 61 transitions, 185 flow. Second operand 4 states and 273 transitions. [2024-02-02 09:17:43,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 79 transitions, 327 flow [2024-02-02 09:17:43,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 79 transitions, 308 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-02-02 09:17:43,756 INFO L231 Difference]: Finished difference. Result has 72 places, 63 transitions, 196 flow [2024-02-02 09:17:43,756 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} [2024-02-02 09:17:43,757 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -16 predicate places. [2024-02-02 09:17:43,757 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 63 transitions, 196 flow [2024-02-02 09:17:43,757 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) [2024-02-02 09:17:43,757 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:43,757 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] [2024-02-02 09:17:43,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-02-02 09:17:43,758 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)] === [2024-02-02 09:17:43,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:43,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1673317842, now seen corresponding path program 1 times [2024-02-02 09:17:43,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:43,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674072387] [2024-02-02 09:17:43,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:43,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:43,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:43,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:43,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:43,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674072387] [2024-02-02 09:17:43,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674072387] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:43,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:43,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:17:43,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239213462] [2024-02-02 09:17:43,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:43,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:43,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:43,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:43,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:43,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 89 [2024-02-02 09:17:43,890 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) [2024-02-02 09:17:43,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:43,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 89 [2024-02-02 09:17:43,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:43,950 INFO L124 PetriNetUnfolderBase]: 80/370 cut-off events. [2024-02-02 09:17:43,951 INFO L125 PetriNetUnfolderBase]: For 168/170 co-relation queries the response was YES. [2024-02-02 09:17:43,951 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. [2024-02-02 09:17:43,952 INFO L140 encePairwiseOnDemand]: 83/89 looper letters, 25 selfloop transitions, 5 changer transitions 7/68 dead transitions. [2024-02-02 09:17:43,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 68 transitions, 280 flow [2024-02-02 09:17:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:43,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:43,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 264 transitions. [2024-02-02 09:17:43,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7415730337078652 [2024-02-02 09:17:43,953 INFO L175 Difference]: Start difference. First operand has 72 places, 63 transitions, 196 flow. Second operand 4 states and 264 transitions. [2024-02-02 09:17:43,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 68 transitions, 280 flow [2024-02-02 09:17:43,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 256 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-02-02 09:17:43,955 INFO L231 Difference]: Finished difference. Result has 69 places, 57 transitions, 169 flow [2024-02-02 09:17:43,955 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} [2024-02-02 09:17:43,956 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -19 predicate places. [2024-02-02 09:17:43,956 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 57 transitions, 169 flow [2024-02-02 09:17:43,956 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) [2024-02-02 09:17:43,956 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:43,957 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] [2024-02-02 09:17:43,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-02-02 09:17:43,957 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)] === [2024-02-02 09:17:43,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:43,957 INFO L85 PathProgramCache]: Analyzing trace with hash 2044561165, now seen corresponding path program 1 times [2024-02-02 09:17:43,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:43,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735533693] [2024-02-02 09:17:43,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:43,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:44,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:44,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735533693] [2024-02-02 09:17:44,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735533693] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:44,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:44,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:17:44,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732553416] [2024-02-02 09:17:44,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:44,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:44,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:44,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:44,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:44,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 89 [2024-02-02 09:17:44,082 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) [2024-02-02 09:17:44,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:44,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 89 [2024-02-02 09:17:44,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:44,142 INFO L124 PetriNetUnfolderBase]: 53/287 cut-off events. [2024-02-02 09:17:44,143 INFO L125 PetriNetUnfolderBase]: For 204/204 co-relation queries the response was YES. [2024-02-02 09:17:44,143 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. [2024-02-02 09:17:44,144 INFO L140 encePairwiseOnDemand]: 80/89 looper letters, 15 selfloop transitions, 8 changer transitions 23/69 dead transitions. [2024-02-02 09:17:44,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 69 transitions, 298 flow [2024-02-02 09:17:44,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:44,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:44,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2024-02-02 09:17:44,145 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7528089887640449 [2024-02-02 09:17:44,145 INFO L175 Difference]: Start difference. First operand has 69 places, 57 transitions, 169 flow. Second operand 4 states and 268 transitions. [2024-02-02 09:17:44,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 69 transitions, 298 flow [2024-02-02 09:17:44,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 69 transitions, 270 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-02-02 09:17:44,147 INFO L231 Difference]: Finished difference. Result has 68 places, 43 transitions, 132 flow [2024-02-02 09:17:44,147 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} [2024-02-02 09:17:44,147 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -20 predicate places. [2024-02-02 09:17:44,148 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 43 transitions, 132 flow [2024-02-02 09:17:44,148 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) [2024-02-02 09:17:44,148 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:17:44,148 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] [2024-02-02 09:17:44,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-02-02 09:17:44,148 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)] === [2024-02-02 09:17:44,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:17:44,149 INFO L85 PathProgramCache]: Analyzing trace with hash -2084891676, now seen corresponding path program 1 times [2024-02-02 09:17:44,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:17:44,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397841839] [2024-02-02 09:17:44,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:17:44,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:17:44,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:17:44,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:17:44,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:17:44,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397841839] [2024-02-02 09:17:44,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397841839] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:17:44,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:17:44,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-02 09:17:44,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026940433] [2024-02-02 09:17:44,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:17:44,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-02-02 09:17:44,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:17:44,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-02-02 09:17:44,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-02-02 09:17:44,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 89 [2024-02-02 09:17:44,375 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) [2024-02-02 09:17:44,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:17:44,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 89 [2024-02-02 09:17:44,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:17:44,407 INFO L124 PetriNetUnfolderBase]: 13/107 cut-off events. [2024-02-02 09:17:44,407 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-02-02 09:17:44,407 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. [2024-02-02 09:17:44,408 INFO L140 encePairwiseOnDemand]: 86/89 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2024-02-02 09:17:44,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 47 transitions, 206 flow [2024-02-02 09:17:44,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:17:44,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:17:44,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 254 transitions. [2024-02-02 09:17:44,409 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7134831460674157 [2024-02-02 09:17:44,409 INFO L175 Difference]: Start difference. First operand has 68 places, 43 transitions, 132 flow. Second operand 4 states and 254 transitions. [2024-02-02 09:17:44,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 47 transitions, 206 flow [2024-02-02 09:17:44,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 47 transitions, 185 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-02-02 09:17:44,410 INFO L231 Difference]: Finished difference. Result has 49 places, 0 transitions, 0 flow [2024-02-02 09:17:44,410 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} [2024-02-02 09:17:44,411 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -39 predicate places. [2024-02-02 09:17:44,411 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 0 transitions, 0 flow [2024-02-02 09:17:44,411 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) [2024-02-02 09:17:44,413 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 34 remaining) [2024-02-02 09:17:44,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 34 remaining) [2024-02-02 09:17:44,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 34 remaining) [2024-02-02 09:17:44,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (30 of 34 remaining) [2024-02-02 09:17:44,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 34 remaining) [2024-02-02 09:17:44,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 34 remaining) [2024-02-02 09:17:44,414 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 34 remaining) [2024-02-02 09:17:44,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 34 remaining) [2024-02-02 09:17:44,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (25 of 34 remaining) [2024-02-02 09:17:44,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 34 remaining) [2024-02-02 09:17:44,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 34 remaining) [2024-02-02 09:17:44,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 34 remaining) [2024-02-02 09:17:44,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 34 remaining) [2024-02-02 09:17:44,415 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 34 remaining) [2024-02-02 09:17:44,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 34 remaining) [2024-02-02 09:17:44,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 34 remaining) [2024-02-02 09:17:44,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 34 remaining) [2024-02-02 09:17:44,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 34 remaining) [2024-02-02 09:17:44,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 34 remaining) [2024-02-02 09:17:44,416 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 34 remaining) [2024-02-02 09:17:44,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 34 remaining) [2024-02-02 09:17:44,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 34 remaining) [2024-02-02 09:17:44,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 34 remaining) [2024-02-02 09:17:44,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 34 remaining) [2024-02-02 09:17:44,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 34 remaining) [2024-02-02 09:17:44,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 34 remaining) [2024-02-02 09:17:44,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 34 remaining) [2024-02-02 09:17:44,417 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 34 remaining) [2024-02-02 09:17:44,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 34 remaining) [2024-02-02 09:17:44,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 34 remaining) [2024-02-02 09:17:44,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 34 remaining) [2024-02-02 09:17:44,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 34 remaining) [2024-02-02 09:17:44,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 34 remaining) [2024-02-02 09:17:44,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 34 remaining) [2024-02-02 09:17:44,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-02-02 09:17:44,419 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:17:44,423 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-02 09:17:44,423 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-02 09:17:44,427 INFO L503 ceAbstractionStarter]: Automizer considered 20 witness invariants [2024-02-02 09:17:44,427 INFO L504 ceAbstractionStarter]: WitnessConsidered=20 [2024-02-02 09:17:44,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.02 09:17:44 BasicIcfg [2024-02-02 09:17:44,428 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-02 09:17:44,428 INFO L158 Benchmark]: Toolchain (without parser) took 4127.47ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 99.8MB in the beginning and 99.7MB in the end (delta: 74.8kB). Peak memory consumption was 113.8MB. Max. memory is 16.1GB. [2024-02-02 09:17:44,428 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:17:44,429 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-02 09:17:44,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.38ms. Allocated memory is still 146.8MB. Free memory was 99.8MB in the beginning and 75.2MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:44,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.12ms. Allocated memory is still 146.8MB. Free memory was 75.2MB in the beginning and 72.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-02 09:17:44,429 INFO L158 Benchmark]: Boogie Preprocessor took 37.67ms. Allocated memory is still 146.8MB. Free memory was 72.6MB in the beginning and 70.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-02 09:17:44,430 INFO L158 Benchmark]: RCFGBuilder took 651.97ms. Allocated memory is still 146.8MB. Free memory was 70.0MB in the beginning and 73.1MB in the end (delta: -3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-02-02 09:17:44,430 INFO L158 Benchmark]: TraceAbstraction took 2844.76ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 72.3MB in the beginning and 99.7MB in the end (delta: -27.5MB). Peak memory consumption was 89.5MB. Max. memory is 16.1GB. [2024-02-02 09:17:44,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 146.8MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.38ms. Allocated memory is still 146.8MB. Free memory was 99.8MB in the beginning and 75.2MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.12ms. Allocated memory is still 146.8MB. Free memory was 75.2MB in the beginning and 72.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.67ms. Allocated memory is still 146.8MB. Free memory was 72.6MB in the beginning and 70.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 651.97ms. Allocated memory is still 146.8MB. Free memory was 70.0MB in the beginning and 73.1MB in the end (delta: -3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2844.76ms. Allocated memory was 146.8MB in the beginning and 262.1MB in the end (delta: 115.3MB). Free memory was 72.3MB in the beginning and 99.7MB in the end (delta: -27.5MB). Peak memory consumption was 89.5MB. 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, 1.0s 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! [2024-02-02 09:17:44,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE