./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/security.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/security.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/security.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/security.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-8857f20-m [2024-01-29 22:59:28,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:59:28,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:59:28,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:59:28,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:59:28,730 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:59:28,731 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:59:28,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:59:28,731 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:59:28,735 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:59:28,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:59:28,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:59:28,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:59:28,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:59:28,737 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:59:28,738 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:59:28,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:59:28,738 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:59:28,738 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:59:28,738 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:59:28,739 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:59:28,739 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:59:28,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:59:28,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:59:28,740 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:59:28,740 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:59:28,740 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:59:28,740 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:59:28,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:59:28,741 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:59:28,742 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:59:28,742 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:59:28,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:59:28,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:59:28,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:59:28,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:59:28,743 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:59:28,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:59:28,743 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:59:28,743 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:59:28,743 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:59:28,744 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:59:28,744 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:59:28,744 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:59:28,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:59:28,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:59:28,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:59:28,991 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:59:28,991 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:59:28,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/security.wvr.c [2024-01-29 22:59:30,072 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:59:30,249 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:59:30,250 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/security.wvr.c [2024-01-29 22:59:30,262 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27703098d/803ba54078d64a6da01aa38f3e211b3a/FLAG17c622cd8 [2024-01-29 22:59:30,276 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27703098d/803ba54078d64a6da01aa38f3e211b3a [2024-01-29 22:59:30,278 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:59:30,278 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:59:30,281 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/security.wvr.yml/witness.yml [2024-01-29 22:59:30,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:59:30,366 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:59:30,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:59:30,367 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:59:30,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:59:30,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:59:30" (1/2) ... [2024-01-29 22:59:30,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6a1851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:30, skipping insertion in model container [2024-01-29 22:59:30,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:59:30" (1/2) ... [2024-01-29 22:59:30,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@631f3e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:30, skipping insertion in model container [2024-01-29 22:59:30,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:30" (2/2) ... [2024-01-29 22:59:30,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6a1851 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30, skipping insertion in model container [2024-01-29 22:59:30,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:30" (2/2) ... [2024-01-29 22:59:30,374 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:59:30,394 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:59:30,398 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (y == 0U) && (x1 == 0U) [2024-01-29 22:59:30,398 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] ((y == 0U) && (x1 == 0U)) && (x2 == 0U) [2024-01-29 22:59:30,398 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] ((y == 0U) && (x1 == 0U)) && (z1 == 0U) [2024-01-29 22:59:30,398 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] ((y == 0U) && (x1 == 0U)) && (l1 == 0U) [2024-01-29 22:59:30,398 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] ((y == 0U) && (x1 == 0U)) && (z2 == 0U) [2024-01-29 22:59:30,399 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] y == 0U [2024-01-29 22:59:30,399 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] ((y == 0U) && (x1 == 0U)) && (l2 == 0U) [2024-01-29 22:59:30,399 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,399 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L59] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,399 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,399 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L47] (y == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:30,399 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L47] y == 0U [2024-01-29 22:59:30,400 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L47] (y == 0U) && (l1 == 0U) [2024-01-29 22:59:30,400 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L47] (y == 0U) && (l2 == 0U) [2024-01-29 22:59:30,400 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L47] (y == 0U) && (x1 == 0U) [2024-01-29 22:59:30,400 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L47] (y == 0U) && (z1 == 0U) [2024-01-29 22:59:30,400 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L47] (y == 0U) && (x2 == 0U) [2024-01-29 22:59:30,400 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L47] (y == 0U) && (z2 == 0U) [2024-01-29 22:59:30,400 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,400 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,401 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (x1 == 0U) && (z1 == 0U) [2024-01-29 22:59:30,401 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] ((x1 == 0U) && (z1 == 0U)) && (x2 == 0U) [2024-01-29 22:59:30,401 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] ((x1 == 0U) && (z1 == 0U)) && (l1 == 0U) [2024-01-29 22:59:30,401 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] ((x1 == 0U) && (z1 == 0U)) && (z2 == 0U) [2024-01-29 22:59:30,402 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] x1 == 0U [2024-01-29 22:59:30,402 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] ((x1 == 0U) && (z1 == 0U)) && (l2 == 0U) [2024-01-29 22:59:30,402 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,402 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-01-29 22:59:30,402 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,402 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,402 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,402 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,403 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,421 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:59:30,579 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/security.wvr.c[1957,1970] [2024-01-29 22:59:30,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:59:30,592 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:59:30,603 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:59:30,672 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/security.wvr.c[1957,1970] [2024-01-29 22:59:30,672 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:59:30,697 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:59:30,697 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30 WrapperNode [2024-01-29 22:59:30,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:59:30,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:59:30,712 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:59:30,712 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:59:30,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,754 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2024-01-29 22:59:30,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:59:30,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:59:30,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:59:30,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:59:30,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,773 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,794 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-29 22:59:30,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:59:30,819 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:59:30,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:59:30,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:59:30,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (1/1) ... [2024-01-29 22:59:30,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:59:30,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:59:30,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:59:30,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:59:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:59:30,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:59:30,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:59:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:59:30,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:59:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:59:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:59:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:59:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:59:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:59:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:59:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:59:30,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:59:30,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:59:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:59:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:59:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:59:30,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:59:30,983 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:59:31,090 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:59:31,092 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:59:31,371 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:59:31,373 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:59:31,435 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:59:31,436 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 22:59:31,436 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:31 BoogieIcfgContainer [2024-01-29 22:59:31,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:59:31,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:59:31,440 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:59:31,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:59:31,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:59:30" (1/4) ... [2024-01-29 22:59:31,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc6a199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:59:31, skipping insertion in model container [2024-01-29 22:59:31,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:30" (2/4) ... [2024-01-29 22:59:31,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc6a199 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:59:31, skipping insertion in model container [2024-01-29 22:59:31,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30" (3/4) ... [2024-01-29 22:59:31,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc6a199 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:59:31, skipping insertion in model container [2024-01-29 22:59:31,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:31" (4/4) ... [2024-01-29 22:59:31,452 INFO L112 eAbstractionObserver]: Analyzing ICFG security.wvr.c [2024-01-29 22:59:31,480 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:59:31,480 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2024-01-29 22:59:31,480 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:59:31,533 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-29 22:59:31,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 83 transitions, 180 flow [2024-01-29 22:59:31,578 INFO L124 PetriNetUnfolderBase]: 2/81 cut-off events. [2024-01-29 22:59:31,578 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:59:31,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 81 events. 2/81 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 115 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2024-01-29 22:59:31,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 83 transitions, 180 flow [2024-01-29 22:59:31,584 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 80 transitions, 172 flow [2024-01-29 22:59:31,590 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:59:31,595 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;@10c37e76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:59:31,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2024-01-29 22:59:31,615 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:59:31,615 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:59:31,616 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:59:31,616 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:31,617 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:59:31,617 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 51 more)] === [2024-01-29 22:59:31,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:31,623 INFO L85 PathProgramCache]: Analyzing trace with hash 9481, now seen corresponding path program 1 times [2024-01-29 22:59:31,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:31,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036190124] [2024-01-29 22:59:31,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:31,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:31,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:31,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036190124] [2024-01-29 22:59:31,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036190124] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:31,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:31,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:59:31,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124900293] [2024-01-29 22:59:31,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:31,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:31,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:31,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:31,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:32,060 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 83 [2024-01-29 22:59:32,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 80 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:32,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:32,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 83 [2024-01-29 22:59:32,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:32,361 INFO L124 PetriNetUnfolderBase]: 303/696 cut-off events. [2024-01-29 22:59:32,362 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-29 22:59:32,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1256 conditions, 696 events. 303/696 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3843 event pairs, 261 based on Foata normal form. 2/616 useless extension candidates. Maximal degree in co-relation 1142. Up to 523 conditions per place. [2024-01-29 22:59:32,370 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 29 selfloop transitions, 2 changer transitions 0/77 dead transitions. [2024-01-29 22:59:32,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 77 transitions, 228 flow [2024-01-29 22:59:32,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:32,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:32,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2024-01-29 22:59:32,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.714859437751004 [2024-01-29 22:59:32,384 INFO L175 Difference]: Start difference. First operand has 85 places, 80 transitions, 172 flow. Second operand 3 states and 178 transitions. [2024-01-29 22:59:32,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 77 transitions, 228 flow [2024-01-29 22:59:32,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 220 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 22:59:32,391 INFO L231 Difference]: Finished difference. Result has 80 places, 77 transitions, 162 flow [2024-01-29 22:59:32,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=80, PETRI_TRANSITIONS=77} [2024-01-29 22:59:32,397 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -5 predicate places. [2024-01-29 22:59:32,397 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 77 transitions, 162 flow [2024-01-29 22:59:32,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:32,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:32,398 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 22:59:32,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:59:32,399 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 51 more)] === [2024-01-29 22:59:32,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:32,400 INFO L85 PathProgramCache]: Analyzing trace with hash 9121356, now seen corresponding path program 1 times [2024-01-29 22:59:32,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:32,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340834066] [2024-01-29 22:59:32,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:32,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:32,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:32,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:32,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340834066] [2024-01-29 22:59:32,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340834066] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:32,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:32,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:32,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929763692] [2024-01-29 22:59:32,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:32,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:32,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:32,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:32,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:32,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 83 [2024-01-29 22:59:32,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 77 transitions, 162 flow. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:32,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:32,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 83 [2024-01-29 22:59:32,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:32,673 INFO L124 PetriNetUnfolderBase]: 324/798 cut-off events. [2024-01-29 22:59:32,673 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-29 22:59:32,675 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1378 conditions, 798 events. 324/798 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 4446 event pairs, 78 based on Foata normal form. 4/700 useless extension candidates. Maximal degree in co-relation 1355. Up to 475 conditions per place. [2024-01-29 22:59:32,679 INFO L140 encePairwiseOnDemand]: 75/83 looper letters, 48 selfloop transitions, 7 changer transitions 0/94 dead transitions. [2024-01-29 22:59:32,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 94 transitions, 308 flow [2024-01-29 22:59:32,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:32,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2024-01-29 22:59:32,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.677710843373494 [2024-01-29 22:59:32,681 INFO L175 Difference]: Start difference. First operand has 80 places, 77 transitions, 162 flow. Second operand 4 states and 225 transitions. [2024-01-29 22:59:32,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 94 transitions, 308 flow [2024-01-29 22:59:32,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 94 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:32,683 INFO L231 Difference]: Finished difference. Result has 82 places, 80 transitions, 197 flow [2024-01-29 22:59:32,684 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=197, PETRI_PLACES=82, PETRI_TRANSITIONS=80} [2024-01-29 22:59:32,684 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -3 predicate places. [2024-01-29 22:59:32,684 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 80 transitions, 197 flow [2024-01-29 22:59:32,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:32,685 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:32,685 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:59:32,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:59:32,685 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 51 more)] === [2024-01-29 22:59:32,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:32,686 INFO L85 PathProgramCache]: Analyzing trace with hash 282762301, now seen corresponding path program 1 times [2024-01-29 22:59:32,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:32,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648124795] [2024-01-29 22:59:32,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:32,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:32,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:32,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648124795] [2024-01-29 22:59:32,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648124795] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:32,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:32,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:32,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192874814] [2024-01-29 22:59:32,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:32,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:32,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:32,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:32,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:32,843 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 83 [2024-01-29 22:59:32,843 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 80 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:32,843 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:32,843 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 83 [2024-01-29 22:59:32,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:32,967 INFO L124 PetriNetUnfolderBase]: 277/695 cut-off events. [2024-01-29 22:59:32,967 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-01-29 22:59:32,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1308 conditions, 695 events. 277/695 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3700 event pairs, 65 based on Foata normal form. 32/652 useless extension candidates. Maximal degree in co-relation 693. Up to 182 conditions per place. [2024-01-29 22:59:32,971 INFO L140 encePairwiseOnDemand]: 74/83 looper letters, 51 selfloop transitions, 9 changer transitions 0/98 dead transitions. [2024-01-29 22:59:32,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 98 transitions, 356 flow [2024-01-29 22:59:32,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:32,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:32,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 228 transitions. [2024-01-29 22:59:32,973 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6867469879518072 [2024-01-29 22:59:32,973 INFO L175 Difference]: Start difference. First operand has 82 places, 80 transitions, 197 flow. Second operand 4 states and 228 transitions. [2024-01-29 22:59:32,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 98 transitions, 356 flow [2024-01-29 22:59:32,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 98 transitions, 352 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:59:32,976 INFO L231 Difference]: Finished difference. Result has 81 places, 77 transitions, 204 flow [2024-01-29 22:59:32,976 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=204, PETRI_PLACES=81, PETRI_TRANSITIONS=77} [2024-01-29 22:59:32,977 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -4 predicate places. [2024-01-29 22:59:32,977 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 77 transitions, 204 flow [2024-01-29 22:59:32,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:32,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:32,977 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:59:32,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:59:32,978 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 51 more)] === [2024-01-29 22:59:32,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:32,978 INFO L85 PathProgramCache]: Analyzing trace with hash 175697013, now seen corresponding path program 1 times [2024-01-29 22:59:32,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:32,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036711127] [2024-01-29 22:59:32,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:32,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:33,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:33,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036711127] [2024-01-29 22:59:33,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036711127] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:33,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:33,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:33,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569299747] [2024-01-29 22:59:33,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:33,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:33,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:33,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:33,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:33,104 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 83 [2024-01-29 22:59:33,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:33,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:33,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 83 [2024-01-29 22:59:33,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:33,194 INFO L124 PetriNetUnfolderBase]: 303/806 cut-off events. [2024-01-29 22:59:33,195 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-01-29 22:59:33,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 806 events. 303/806 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4393 event pairs, 7 based on Foata normal form. 0/704 useless extension candidates. Maximal degree in co-relation 855. Up to 493 conditions per place. [2024-01-29 22:59:33,199 INFO L140 encePairwiseOnDemand]: 79/83 looper letters, 49 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2024-01-29 22:59:33,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 87 transitions, 331 flow [2024-01-29 22:59:33,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:33,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:33,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 213 transitions. [2024-01-29 22:59:33,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.641566265060241 [2024-01-29 22:59:33,200 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 204 flow. Second operand 4 states and 213 transitions. [2024-01-29 22:59:33,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 87 transitions, 331 flow [2024-01-29 22:59:33,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 87 transitions, 313 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:59:33,203 INFO L231 Difference]: Finished difference. Result has 80 places, 76 transitions, 190 flow [2024-01-29 22:59:33,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=80, PETRI_TRANSITIONS=76} [2024-01-29 22:59:33,204 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -5 predicate places. [2024-01-29 22:59:33,204 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 76 transitions, 190 flow [2024-01-29 22:59:33,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:33,205 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:33,205 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:33,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:59:33,205 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 51 more)] === [2024-01-29 22:59:33,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:33,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1151640378, now seen corresponding path program 1 times [2024-01-29 22:59:33,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:33,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868979148] [2024-01-29 22:59:33,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:33,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:33,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:33,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:33,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868979148] [2024-01-29 22:59:33,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868979148] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:33,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:33,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:33,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363691286] [2024-01-29 22:59:33,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:33,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:33,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:33,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:33,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:33,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 83 [2024-01-29 22:59:33,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 76 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:33,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:33,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 83 [2024-01-29 22:59:33,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:33,436 INFO L124 PetriNetUnfolderBase]: 303/727 cut-off events. [2024-01-29 22:59:33,437 INFO L125 PetriNetUnfolderBase]: For 91/91 co-relation queries the response was YES. [2024-01-29 22:59:33,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1385 conditions, 727 events. 303/727 cut-off events. For 91/91 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3942 event pairs, 94 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 1221. Up to 211 conditions per place. [2024-01-29 22:59:33,440 INFO L140 encePairwiseOnDemand]: 75/83 looper letters, 50 selfloop transitions, 12 changer transitions 0/97 dead transitions. [2024-01-29 22:59:33,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 97 transitions, 366 flow [2024-01-29 22:59:33,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:33,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:33,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 228 transitions. [2024-01-29 22:59:33,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6867469879518072 [2024-01-29 22:59:33,442 INFO L175 Difference]: Start difference. First operand has 80 places, 76 transitions, 190 flow. Second operand 4 states and 228 transitions. [2024-01-29 22:59:33,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 97 transitions, 366 flow [2024-01-29 22:59:33,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 97 transitions, 358 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:59:33,444 INFO L231 Difference]: Finished difference. Result has 81 places, 80 transitions, 247 flow [2024-01-29 22:59:33,444 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=247, PETRI_PLACES=81, PETRI_TRANSITIONS=80} [2024-01-29 22:59:33,445 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -4 predicate places. [2024-01-29 22:59:33,445 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 80 transitions, 247 flow [2024-01-29 22:59:33,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:33,445 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:33,445 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:33,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:59:33,446 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 51 more)] === [2024-01-29 22:59:33,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:33,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1375149388, now seen corresponding path program 1 times [2024-01-29 22:59:33,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:33,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209366162] [2024-01-29 22:59:33,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:33,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:33,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:33,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:33,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209366162] [2024-01-29 22:59:33,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209366162] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:33,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:33,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:59:33,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650338947] [2024-01-29 22:59:33,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:33,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:33,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:33,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:33,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:33,564 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 83 [2024-01-29 22:59:33,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 80 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:33,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:33,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 83 [2024-01-29 22:59:33,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:33,678 INFO L124 PetriNetUnfolderBase]: 328/808 cut-off events. [2024-01-29 22:59:33,678 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES. [2024-01-29 22:59:33,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1678 conditions, 808 events. 328/808 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4367 event pairs, 125 based on Foata normal form. 1/714 useless extension candidates. Maximal degree in co-relation 680. Up to 307 conditions per place. [2024-01-29 22:59:33,682 INFO L140 encePairwiseOnDemand]: 75/83 looper letters, 64 selfloop transitions, 8 changer transitions 0/108 dead transitions. [2024-01-29 22:59:33,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 108 transitions, 474 flow [2024-01-29 22:59:33,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:33,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 248 transitions. [2024-01-29 22:59:33,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7469879518072289 [2024-01-29 22:59:33,684 INFO L175 Difference]: Start difference. First operand has 81 places, 80 transitions, 247 flow. Second operand 4 states and 248 transitions. [2024-01-29 22:59:33,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 108 transitions, 474 flow [2024-01-29 22:59:33,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 108 transitions, 455 flow, removed 5 selfloop flow, removed 1 redundant places. [2024-01-29 22:59:33,690 INFO L231 Difference]: Finished difference. Result has 82 places, 82 transitions, 276 flow [2024-01-29 22:59:33,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=276, PETRI_PLACES=82, PETRI_TRANSITIONS=82} [2024-01-29 22:59:33,693 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, -3 predicate places. [2024-01-29 22:59:33,693 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 82 transitions, 276 flow [2024-01-29 22:59:33,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:33,694 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:33,694 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:33,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:59:33,694 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 51 more)] === [2024-01-29 22:59:33,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:33,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1331374704, now seen corresponding path program 1 times [2024-01-29 22:59:33,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:33,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200148971] [2024-01-29 22:59:33,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:33,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:33,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:33,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200148971] [2024-01-29 22:59:33,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200148971] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:33,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:33,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:59:33,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606420802] [2024-01-29 22:59:33,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:33,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:59:33,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:33,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:59:33,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:59:33,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 83 [2024-01-29 22:59:33,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 82 transitions, 276 flow. Second operand has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:33,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:33,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 83 [2024-01-29 22:59:33,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:34,070 INFO L124 PetriNetUnfolderBase]: 635/1572 cut-off events. [2024-01-29 22:59:34,070 INFO L125 PetriNetUnfolderBase]: For 621/621 co-relation queries the response was YES. [2024-01-29 22:59:34,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3357 conditions, 1572 events. 635/1572 cut-off events. For 621/621 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10336 event pairs, 152 based on Foata normal form. 0/1428 useless extension candidates. Maximal degree in co-relation 1937. Up to 397 conditions per place. [2024-01-29 22:59:34,079 INFO L140 encePairwiseOnDemand]: 75/83 looper letters, 95 selfloop transitions, 17 changer transitions 0/139 dead transitions. [2024-01-29 22:59:34,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 139 transitions, 693 flow [2024-01-29 22:59:34,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:59:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:59:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 287 transitions. [2024-01-29 22:59:34,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.691566265060241 [2024-01-29 22:59:34,081 INFO L175 Difference]: Start difference. First operand has 82 places, 82 transitions, 276 flow. Second operand 5 states and 287 transitions. [2024-01-29 22:59:34,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 139 transitions, 693 flow [2024-01-29 22:59:34,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 139 transitions, 693 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:59:34,087 INFO L231 Difference]: Finished difference. Result has 88 places, 92 transitions, 408 flow [2024-01-29 22:59:34,087 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=408, PETRI_PLACES=88, PETRI_TRANSITIONS=92} [2024-01-29 22:59:34,090 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 3 predicate places. [2024-01-29 22:59:34,090 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 92 transitions, 408 flow [2024-01-29 22:59:34,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 5 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:34,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:34,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:34,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:59:34,095 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 51 more)] === [2024-01-29 22:59:34,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:34,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1677056817, now seen corresponding path program 1 times [2024-01-29 22:59:34,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:34,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197068588] [2024-01-29 22:59:34,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:34,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:34,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:34,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:34,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:34,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197068588] [2024-01-29 22:59:34,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197068588] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:34,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:34,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:59:34,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134775130] [2024-01-29 22:59:34,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:34,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:59:34,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:34,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:59:34,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:59:34,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 83 [2024-01-29 22:59:34,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 92 transitions, 408 flow. Second operand has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:34,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:34,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 83 [2024-01-29 22:59:34,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:34,461 INFO L124 PetriNetUnfolderBase]: 668/1583 cut-off events. [2024-01-29 22:59:34,461 INFO L125 PetriNetUnfolderBase]: For 1135/1145 co-relation queries the response was YES. [2024-01-29 22:59:34,465 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3690 conditions, 1583 events. 668/1583 cut-off events. For 1135/1145 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 10150 event pairs, 245 based on Foata normal form. 10/1457 useless extension candidates. Maximal degree in co-relation 2073. Up to 614 conditions per place. [2024-01-29 22:59:34,472 INFO L140 encePairwiseOnDemand]: 77/83 looper letters, 83 selfloop transitions, 16 changer transitions 0/126 dead transitions. [2024-01-29 22:59:34,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 126 transitions, 700 flow [2024-01-29 22:59:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:59:34,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:59:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 275 transitions. [2024-01-29 22:59:34,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6626506024096386 [2024-01-29 22:59:34,474 INFO L175 Difference]: Start difference. First operand has 88 places, 92 transitions, 408 flow. Second operand 5 states and 275 transitions. [2024-01-29 22:59:34,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 126 transitions, 700 flow [2024-01-29 22:59:34,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 126 transitions, 696 flow, removed 2 selfloop flow, removed 0 redundant places. [2024-01-29 22:59:34,480 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 454 flow [2024-01-29 22:59:34,480 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=454, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2024-01-29 22:59:34,482 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 7 predicate places. [2024-01-29 22:59:34,483 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 454 flow [2024-01-29 22:59:34,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.2) internal successors, (206), 5 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:34,483 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:34,483 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:34,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 22:59:34,483 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 51 more)] === [2024-01-29 22:59:34,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:34,484 INFO L85 PathProgramCache]: Analyzing trace with hash -449153499, now seen corresponding path program 1 times [2024-01-29 22:59:34,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:34,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916727053] [2024-01-29 22:59:34,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:34,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:34,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:34,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916727053] [2024-01-29 22:59:34,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916727053] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:34,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:34,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:59:34,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450268319] [2024-01-29 22:59:34,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:34,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:59:34,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:34,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:59:34,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:59:34,620 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 83 [2024-01-29 22:59:34,621 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 454 flow. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:34,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:34,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 83 [2024-01-29 22:59:34,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:34,827 INFO L124 PetriNetUnfolderBase]: 668/1637 cut-off events. [2024-01-29 22:59:34,828 INFO L125 PetriNetUnfolderBase]: For 1482/1482 co-relation queries the response was YES. [2024-01-29 22:59:34,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3973 conditions, 1637 events. 668/1637 cut-off events. For 1482/1482 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10701 event pairs, 136 based on Foata normal form. 0/1508 useless extension candidates. Maximal degree in co-relation 2873. Up to 828 conditions per place. [2024-01-29 22:59:34,837 INFO L140 encePairwiseOnDemand]: 76/83 looper letters, 80 selfloop transitions, 18 changer transitions 0/124 dead transitions. [2024-01-29 22:59:34,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 124 transitions, 746 flow [2024-01-29 22:59:34,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:59:34,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:59:34,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 274 transitions. [2024-01-29 22:59:34,839 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6602409638554216 [2024-01-29 22:59:34,839 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 454 flow. Second operand 5 states and 274 transitions. [2024-01-29 22:59:34,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 124 transitions, 746 flow [2024-01-29 22:59:34,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 124 transitions, 730 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:34,844 INFO L231 Difference]: Finished difference. Result has 94 places, 94 transitions, 500 flow [2024-01-29 22:59:34,844 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=437, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=500, PETRI_PLACES=94, PETRI_TRANSITIONS=94} [2024-01-29 22:59:34,845 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 9 predicate places. [2024-01-29 22:59:34,845 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 94 transitions, 500 flow [2024-01-29 22:59:34,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 5 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:34,846 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:34,846 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:34,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 22:59:34,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 51 more)] === [2024-01-29 22:59:34,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:34,846 INFO L85 PathProgramCache]: Analyzing trace with hash 967687493, now seen corresponding path program 1 times [2024-01-29 22:59:34,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:34,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370606121] [2024-01-29 22:59:34,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:34,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:34,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:59:34,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:34,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370606121] [2024-01-29 22:59:34,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370606121] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:34,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:34,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:59:34,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071913704] [2024-01-29 22:59:34,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:34,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:34,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:34,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:34,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:34,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 83 [2024-01-29 22:59:34,950 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 94 transitions, 500 flow. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:34,950 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:34,950 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 83 [2024-01-29 22:59:34,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:35,077 INFO L124 PetriNetUnfolderBase]: 580/1237 cut-off events. [2024-01-29 22:59:35,077 INFO L125 PetriNetUnfolderBase]: For 1450/1464 co-relation queries the response was YES. [2024-01-29 22:59:35,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3375 conditions, 1237 events. 580/1237 cut-off events. For 1450/1464 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 6596 event pairs, 231 based on Foata normal form. 148/1260 useless extension candidates. Maximal degree in co-relation 2188. Up to 989 conditions per place. [2024-01-29 22:59:35,085 INFO L140 encePairwiseOnDemand]: 76/83 looper letters, 60 selfloop transitions, 2 changer transitions 0/100 dead transitions. [2024-01-29 22:59:35,085 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 100 transitions, 656 flow [2024-01-29 22:59:35,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:59:35,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:59:35,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-01-29 22:59:35,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7228915662650602 [2024-01-29 22:59:35,087 INFO L175 Difference]: Start difference. First operand has 94 places, 94 transitions, 500 flow. Second operand 4 states and 240 transitions. [2024-01-29 22:59:35,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 100 transitions, 656 flow [2024-01-29 22:59:35,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 100 transitions, 640 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:59:35,091 INFO L231 Difference]: Finished difference. Result has 90 places, 89 transitions, 478 flow [2024-01-29 22:59:35,092 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=478, PETRI_PLACES=90, PETRI_TRANSITIONS=89} [2024-01-29 22:59:35,092 INFO L281 CegarLoopForPetriNet]: 85 programPoint places, 5 predicate places. [2024-01-29 22:59:35,092 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 89 transitions, 478 flow [2024-01-29 22:59:35,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:59:35,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:35,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:35,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 22:59:35,093 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 51 more)] === [2024-01-29 22:59:35,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:35,094 INFO L85 PathProgramCache]: Analyzing trace with hash -66458453, now seen corresponding path program 1 times [2024-01-29 22:59:35,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:35,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912605639] [2024-01-29 22:59:35,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:35,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:59:35,103 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:59:35,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:59:35,121 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:59:35,121 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:59:35,122 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 54 remaining) [2024-01-29 22:59:35,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 54 remaining) [2024-01-29 22:59:35,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 54 remaining) [2024-01-29 22:59:35,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 54 remaining) [2024-01-29 22:59:35,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 54 remaining) [2024-01-29 22:59:35,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 54 remaining) [2024-01-29 22:59:35,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 54 remaining) [2024-01-29 22:59:35,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 54 remaining) [2024-01-29 22:59:35,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 54 remaining) [2024-01-29 22:59:35,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 54 remaining) [2024-01-29 22:59:35,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 54 remaining) [2024-01-29 22:59:35,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 54 remaining) [2024-01-29 22:59:35,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 54 remaining) [2024-01-29 22:59:35,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 54 remaining) [2024-01-29 22:59:35,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 54 remaining) [2024-01-29 22:59:35,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 54 remaining) [2024-01-29 22:59:35,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 54 remaining) [2024-01-29 22:59:35,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 54 remaining) [2024-01-29 22:59:35,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 54 remaining) [2024-01-29 22:59:35,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 54 remaining) [2024-01-29 22:59:35,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 54 remaining) [2024-01-29 22:59:35,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 54 remaining) [2024-01-29 22:59:35,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 54 remaining) [2024-01-29 22:59:35,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 54 remaining) [2024-01-29 22:59:35,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 54 remaining) [2024-01-29 22:59:35,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 54 remaining) [2024-01-29 22:59:35,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 54 remaining) [2024-01-29 22:59:35,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 54 remaining) [2024-01-29 22:59:35,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 54 remaining) [2024-01-29 22:59:35,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 54 remaining) [2024-01-29 22:59:35,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 54 remaining) [2024-01-29 22:59:35,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 54 remaining) [2024-01-29 22:59:35,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 54 remaining) [2024-01-29 22:59:35,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (20 of 54 remaining) [2024-01-29 22:59:35,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 54 remaining) [2024-01-29 22:59:35,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 54 remaining) [2024-01-29 22:59:35,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 54 remaining) [2024-01-29 22:59:35,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 54 remaining) [2024-01-29 22:59:35,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 54 remaining) [2024-01-29 22:59:35,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 54 remaining) [2024-01-29 22:59:35,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 54 remaining) [2024-01-29 22:59:35,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 54 remaining) [2024-01-29 22:59:35,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 54 remaining) [2024-01-29 22:59:35,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 54 remaining) [2024-01-29 22:59:35,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 54 remaining) [2024-01-29 22:59:35,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 54 remaining) [2024-01-29 22:59:35,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 54 remaining) [2024-01-29 22:59:35,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 54 remaining) [2024-01-29 22:59:35,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 54 remaining) [2024-01-29 22:59:35,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 54 remaining) [2024-01-29 22:59:35,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 54 remaining) [2024-01-29 22:59:35,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 54 remaining) [2024-01-29 22:59:35,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 54 remaining) [2024-01-29 22:59:35,131 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 54 remaining) [2024-01-29 22:59:35,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-29 22:59:35,131 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:59:35,136 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:59:35,136 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:59:35,154 INFO L503 ceAbstractionStarter]: Automizer considered 32 witness invariants [2024-01-29 22:59:35,154 INFO L504 ceAbstractionStarter]: WitnessConsidered=32 [2024-01-29 22:59:35,155 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:59:35 BasicIcfg [2024-01-29 22:59:35,155 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:59:35,155 INFO L158 Benchmark]: Toolchain (without parser) took 4789.81ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 124.9MB in the beginning and 69.3MB in the end (delta: 55.5MB). Peak memory consumption was 130.9MB. Max. memory is 16.1GB. [2024-01-29 22:59:35,156 INFO L158 Benchmark]: CDTParser took 1.05ms. Allocated memory is still 159.4MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:59:35,156 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:59:35,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.87ms. Allocated memory is still 159.4MB. Free memory was 124.9MB in the beginning and 109.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-01-29 22:59:35,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.42ms. Allocated memory is still 159.4MB. Free memory was 109.1MB in the beginning and 107.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:59:35,157 INFO L158 Benchmark]: Boogie Preprocessor took 60.16ms. Allocated memory is still 159.4MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:59:35,157 INFO L158 Benchmark]: RCFGBuilder took 617.66ms. Allocated memory is still 159.4MB. Free memory was 104.9MB in the beginning and 104.5MB in the end (delta: 388.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-01-29 22:59:35,157 INFO L158 Benchmark]: TraceAbstraction took 3717.66ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 103.5MB in the beginning and 69.3MB in the end (delta: 34.1MB). Peak memory consumption was 111.7MB. Max. memory is 16.1GB. [2024-01-29 22:59:35,158 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05ms. Allocated memory is still 159.4MB. Free memory is still 121.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.87ms. Allocated memory is still 159.4MB. Free memory was 124.9MB in the beginning and 109.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.42ms. Allocated memory is still 159.4MB. Free memory was 109.1MB in the beginning and 107.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.16ms. Allocated memory is still 159.4MB. Free memory was 107.0MB in the beginning and 104.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 617.66ms. Allocated memory is still 159.4MB. Free memory was 104.9MB in the beginning and 104.5MB in the end (delta: 388.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3717.66ms. Allocated memory was 159.4MB in the beginning and 234.9MB in the end (delta: 75.5MB). Free memory was 103.5MB in the beginning and 69.3MB in the end (delta: 34.1MB). Peak memory consumption was 111.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 43]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] 0 unsigned int y, x1, z1, l1, x2, z2, l2; [L66] 0 pthread_t t1, t2; VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, y=0, z1=0, z2=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[l2],IntegerLiteral[0U]]]]] VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, y=0, z1=0, z2=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[0U]]]] VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, y=0, z1=0, z2=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[z2],IntegerLiteral[0U]]]]] VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, y=0, z1=0, z2=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[l1],IntegerLiteral[0U]]]]] VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, y=0, z1=0, z2=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[z1],IntegerLiteral[0U]]]]] VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, y=0, z1=0, z2=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]]] VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, y=0, z1=0, z2=0] [L68] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]]]] [L68] 0 y = __VERIFIER_nondet_uint() [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[z1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[l2],IntegerLiteral[0U]]]]] VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, z1=0, z2=0] [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]]]] VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, z1=0, z2=0] [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[z1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[z2],IntegerLiteral[0U]]]]] VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, z1=0, z2=0] [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[z1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[l1],IntegerLiteral[0U]]]]] VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, z1=0, z2=0] [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[z1],IntegerLiteral[0U]]],BinaryExpression[COMPEQ,IdentifierExpression[x2],IntegerLiteral[0U]]]]] VAL [l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, z1=0, z2=0] [L70] 0 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x1],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[z1],IntegerLiteral[0U]]]]] [L70] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [_argptr={0:0}, l1=0, l2=0, t1={3:0}, t2={5:0}, x1=0, x2=0, z1=0, z2=0] [L42] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[_argptr]],IntegerLiteral[0UL]]]] [L42] 1 z1 = 1 VAL [_argptr={0:0}, _argptr={0:0}, l1=0, l2=0, x1=0, x2=0, z1=1, z2=0] [L43] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[y],IntegerLiteral[0U]],BinaryExpression[COMPEQ,IdentifierExpression[z2],IntegerLiteral[0U]]]]] VAL [_argptr={0:0}, _argptr={0:0}, l1=0, l2=0, x1=0, x2=0, y=1, z1=1, z2=0] - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 62]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 68]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 128 locations, 54 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: 3.6s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1382 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 925 mSDsluCounter, 164 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 120 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1473 IncrementalHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 120 mSolverCounterUnsat, 40 mSDtfsCounter, 1473 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=500occurred in iteration=9, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 929 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 RESULT: Ultimate proved your program to be incorrect! [2024-01-29 22:59:35,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE