./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/46_monabsex2_vs.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/pthread-ext/46_monabsex2_vs.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/46_monabsex2_vs.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 22:51:11,680 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:51:11,754 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:51:11,758 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:51:11,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:51:11,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:51:11,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:51:11,778 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:51:11,778 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:51:11,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:51:11,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:51:11,779 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:51:11,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:51:11,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:51:11,781 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:51:11,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:51:11,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:51:11,782 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:51:11,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:51:11,782 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:51:11,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:51:11,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:51:11,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:51:11,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:51:11,784 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:51:11,784 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:51:11,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:51:11,785 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:51:11,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:51:11,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:51:11,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:51:11,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:51:11,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:51:11,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:51:11,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:51:11,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:51:11,787 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:51:11,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:51:11,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:51:11,788 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:51:11,789 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:51:11,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:51:11,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:51:11,790 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:51:11,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:51:12,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:51:12,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:51:12,019 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:51:12,020 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:51:12,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2024-01-29 22:51:13,220 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:51:13,462 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:51:13,462 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2024-01-29 22:51:13,474 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a4eb274/ad26820e92c2463faa57902a96ef471e/FLAG423e6a3c3 [2024-01-29 22:51:13,490 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a4eb274/ad26820e92c2463faa57902a96ef471e [2024-01-29 22:51:13,492 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:51:13,493 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:51:13,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/46_monabsex2_vs.yml/witness.yml [2024-01-29 22:51:13,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:51:13,594 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:51:13,597 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:51:13,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:51:13,601 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:51:13,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:51:13" (1/2) ... [2024-01-29 22:51:13,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:51:13, skipping insertion in model container [2024-01-29 22:51:13,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:51:13" (1/2) ... [2024-01-29 22:51:13,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b2ffaf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:51:13, skipping insertion in model container [2024-01-29 22:51:13,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:51:13" (2/2) ... [2024-01-29 22:51:13,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa759 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:51:13, skipping insertion in model container [2024-01-29 22:51:13,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:51:13" (2/2) ... [2024-01-29 22:51:13,606 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:51:13,638 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:51:13,639 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (((unsigned long )arg == 0UL) && (l == (_Bool)1 || (l == (_Bool)0 || l == (_Bool)1))) && ((unsigned long )arg == 0UL) [2024-01-29 22:51:13,639 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] ((unsigned long )arg == 0UL) && (l == (_Bool)1 || (l == (_Bool)0 || l == (_Bool)1)) [2024-01-29 22:51:13,639 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (unsigned long )arg == 0UL [2024-01-29 22:51:13,639 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (((unsigned long )arg == 0UL) && (l == (_Bool)1 || (l == (_Bool)0 || l == (_Bool)1))) && (s == (_Bool)0) [2024-01-29 22:51:13,640 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (((unsigned long )arg == 0UL) && (l == (_Bool)1 || (l == (_Bool)0 || l == (_Bool)1))) && (l == (_Bool)1) [2024-01-29 22:51:13,640 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] ((unsigned long )arg == 0UL) && (s == (_Bool)0 || s == (_Bool)1) [2024-01-29 22:51:13,640 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (unsigned long )arg == 0UL [2024-01-29 22:51:13,640 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] (unsigned long )arg == 0UL [2024-01-29 22:51:13,640 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] (unsigned long )arg == 0UL [2024-01-29 22:51:13,641 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] (unsigned long )arg == 0UL [2024-01-29 22:51:13,641 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] (s == (_Bool)0) && ((unsigned long )arg == 0UL) [2024-01-29 22:51:13,641 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] ((s == (_Bool)0) && ((unsigned long )arg == 0UL)) && (l == (_Bool)0 || l == (_Bool)1) [2024-01-29 22:51:13,641 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] s == (_Bool)0 [2024-01-29 22:51:13,641 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] s == (_Bool)1 [2024-01-29 22:51:13,641 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] (s == (_Bool)1) && ((unsigned long )arg == 0UL) [2024-01-29 22:51:13,642 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] (s == (_Bool)1) && (l == (_Bool)0 || l == (_Bool)1) [2024-01-29 22:51:13,642 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (unsigned long )arg == 0UL [2024-01-29 22:51:13,642 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] ((unsigned long )arg == 0UL) && (s == (_Bool)0 || s == (_Bool)1) [2024-01-29 22:51:13,642 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] ((unsigned long )arg == 0UL) && (l == (_Bool)0 || l == (_Bool)1) [2024-01-29 22:51:13,642 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] ((unsigned long )arg == 0UL) && (l == (_Bool)1 || (l == (_Bool)0 || l == (_Bool)1)) [2024-01-29 22:51:13,643 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (unsigned long )arg == 0UL [2024-01-29 22:51:13,643 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (((unsigned long )arg == 0UL) && (l == (_Bool)1 || (l == (_Bool)0 || l == (_Bool)1))) && (s == (_Bool)0) [2024-01-29 22:51:13,643 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] ((unsigned long )arg == 0UL) && (s == (_Bool)0 || s == (_Bool)1) [2024-01-29 22:51:13,643 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (((unsigned long )arg == 0UL) && (l == (_Bool)1 || (l == (_Bool)0 || l == (_Bool)1))) && ((unsigned long )arg == 0UL) [2024-01-29 22:51:13,644 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (((unsigned long )arg == 0UL) && (l == (_Bool)1 || (l == (_Bool)0 || l == (_Bool)1))) && (l == (_Bool)1) [2024-01-29 22:51:13,644 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] ((l == (_Bool)1) && ((unsigned long )arg == 0UL)) && (s == (_Bool)0 || s == (_Bool)1) [2024-01-29 22:51:13,644 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] (l == (_Bool)1) && ((unsigned long )arg == 0UL) [2024-01-29 22:51:13,644 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] l == (_Bool)1 [2024-01-29 22:51:13,644 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] (unsigned long )arg == 0UL [2024-01-29 22:51:13,645 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] ((unsigned long )arg == 0UL) && (l == (_Bool)0 || l == (_Bool)1) [2024-01-29 22:51:13,645 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] ((unsigned long )arg == 0UL) && (s == (_Bool)0 || s == (_Bool)1) [2024-01-29 22:51:13,694 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:51:14,001 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i[30494,30507] [2024-01-29 22:51:14,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:51:14,023 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-01-29 22:51:14,079 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i[30494,30507] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:51:14,089 WARN L424 MainDispatcher]: Unable to annotate ; 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 [2024-01-29 22:51:14,107 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:51:14,138 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:51:14,139 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:51:14 WrapperNode [2024-01-29 22:51:14,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:51:14,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:51:14,141 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:51:14,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:51:14,163 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,193 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,215 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-01-29 22:51:14,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:51:14,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:51:14,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:51:14,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:51:14,255 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,256 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,263 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,286 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [2, 1]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-01-29 22:51:14,287 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,287 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,304 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,309 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,315 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,317 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,319 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:51:14,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:51:14,332 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:51:14,332 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:51:14,333 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 10:51:14" (1/1) ... [2024-01-29 22:51:14,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:51:14,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:51:14,370 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 22:51:14,375 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 22:51:14,408 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-29 22:51:14,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-29 22:51:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:51:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:51:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 22:51:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:51:14,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:51:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:51:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:51:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:51:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 22:51:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:51:14,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:51:14,412 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 22:51:14,518 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:51:14,520 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:51:14,752 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:51:14,752 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:51:14,969 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:51:14,969 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-01-29 22:51:14,969 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:51:14 BoogieIcfgContainer [2024-01-29 22:51:14,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:51:14,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:51:14,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:51:14,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:51:14,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:51:13" (1/4) ... [2024-01-29 22:51:14,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281011ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:51:14, skipping insertion in model container [2024-01-29 22:51:14,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:51:13" (2/4) ... [2024-01-29 22:51:14,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281011ca and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:51:14, skipping insertion in model container [2024-01-29 22:51:14,979 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 10:51:14" (3/4) ... [2024-01-29 22:51:14,980 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@281011ca and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:51:14, skipping insertion in model container [2024-01-29 22:51:14,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:51:14" (4/4) ... [2024-01-29 22:51:14,983 INFO L112 eAbstractionObserver]: Analyzing ICFG 46_monabsex2_vs.i [2024-01-29 22:51:15,000 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:51:15,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-01-29 22:51:15,001 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:51:15,051 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:51:15,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 39 transitions, 82 flow [2024-01-29 22:51:15,118 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2024-01-29 22:51:15,118 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:51:15,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 41 events. 0/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 107 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-29 22:51:15,122 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 39 transitions, 82 flow [2024-01-29 22:51:15,127 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 39 transitions, 82 flow [2024-01-29 22:51:15,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:51:15,150 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;@7f62da45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:51:15,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-01-29 22:51:15,156 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:51:15,156 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-01-29 22:51:15,157 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:51:15,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:51:15,158 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:51:15,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 50 more)] === [2024-01-29 22:51:15,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:51:15,164 INFO L85 PathProgramCache]: Analyzing trace with hash 283501943, now seen corresponding path program 1 times [2024-01-29 22:51:15,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:51:15,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177164037] [2024-01-29 22:51:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:51:15,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:51:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:51:15,545 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 22:51:15,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:51:15,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177164037] [2024-01-29 22:51:15,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177164037] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:51:15,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:51:15,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:51:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890697432] [2024-01-29 22:51:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:51:15,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:51:15,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:51:15,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:51:15,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:51:15,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 39 [2024-01-29 22:51:15,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 22:51:15,621 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:51:15,621 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 39 [2024-01-29 22:51:15,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:51:15,677 INFO L124 PetriNetUnfolderBase]: 5/22 cut-off events. [2024-01-29 22:51:15,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:51:15,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 22 events. 5/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 42 event pairs, 0 based on Foata normal form. 2/18 useless extension candidates. Maximal degree in co-relation 34. Up to 15 conditions per place. [2024-01-29 22:51:15,680 INFO L140 encePairwiseOnDemand]: 28/39 looper letters, 8 selfloop transitions, 2 changer transitions 0/12 dead transitions. [2024-01-29 22:51:15,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 12 transitions, 48 flow [2024-01-29 22:51:15,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:51:15,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:51:15,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2024-01-29 22:51:15,692 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.23717948717948717 [2024-01-29 22:51:15,694 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 82 flow. Second operand 4 states and 37 transitions. [2024-01-29 22:51:15,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 12 transitions, 48 flow [2024-01-29 22:51:15,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 12 transitions, 48 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:51:15,700 INFO L231 Difference]: Finished difference. Result has 16 places, 10 transitions, 28 flow [2024-01-29 22:51:15,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=24, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=28, PETRI_PLACES=16, PETRI_TRANSITIONS=10} [2024-01-29 22:51:15,708 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -26 predicate places. [2024-01-29 22:51:15,708 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 10 transitions, 28 flow [2024-01-29 22:51:15,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 22:51:15,709 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:51:15,709 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2024-01-29 22:51:15,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:51:15,710 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 50 more)] === [2024-01-29 22:51:15,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:51:15,711 INFO L85 PathProgramCache]: Analyzing trace with hash 283501697, now seen corresponding path program 1 times [2024-01-29 22:51:15,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:51:15,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969749181] [2024-01-29 22:51:15,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:51:15,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:51:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:51:15,749 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:51:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:51:15,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:51:15,774 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:51:15,777 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2024-01-29 22:51:15,780 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 53 remaining) [2024-01-29 22:51:15,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 53 remaining) [2024-01-29 22:51:15,781 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 53 remaining) [2024-01-29 22:51:15,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 53 remaining) [2024-01-29 22:51:15,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 53 remaining) [2024-01-29 22:51:15,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 53 remaining) [2024-01-29 22:51:15,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 53 remaining) [2024-01-29 22:51:15,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (44 of 53 remaining) [2024-01-29 22:51:15,783 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 53 remaining) [2024-01-29 22:51:15,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 53 remaining) [2024-01-29 22:51:15,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 53 remaining) [2024-01-29 22:51:15,784 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 53 remaining) [2024-01-29 22:51:15,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 53 remaining) [2024-01-29 22:51:15,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 53 remaining) [2024-01-29 22:51:15,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 53 remaining) [2024-01-29 22:51:15,785 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 53 remaining) [2024-01-29 22:51:15,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 53 remaining) [2024-01-29 22:51:15,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 53 remaining) [2024-01-29 22:51:15,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 53 remaining) [2024-01-29 22:51:15,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 53 remaining) [2024-01-29 22:51:15,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 53 remaining) [2024-01-29 22:51:15,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 53 remaining) [2024-01-29 22:51:15,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 53 remaining) [2024-01-29 22:51:15,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 53 remaining) [2024-01-29 22:51:15,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 53 remaining) [2024-01-29 22:51:15,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 53 remaining) [2024-01-29 22:51:15,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 53 remaining) [2024-01-29 22:51:15,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 53 remaining) [2024-01-29 22:51:15,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 53 remaining) [2024-01-29 22:51:15,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 53 remaining) [2024-01-29 22:51:15,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 53 remaining) [2024-01-29 22:51:15,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 53 remaining) [2024-01-29 22:51:15,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 53 remaining) [2024-01-29 22:51:15,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (18 of 53 remaining) [2024-01-29 22:51:15,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 53 remaining) [2024-01-29 22:51:15,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 53 remaining) [2024-01-29 22:51:15,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 53 remaining) [2024-01-29 22:51:15,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 53 remaining) [2024-01-29 22:51:15,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 53 remaining) [2024-01-29 22:51:15,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 53 remaining) [2024-01-29 22:51:15,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 53 remaining) [2024-01-29 22:51:15,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 53 remaining) [2024-01-29 22:51:15,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 53 remaining) [2024-01-29 22:51:15,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 53 remaining) [2024-01-29 22:51:15,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 53 remaining) [2024-01-29 22:51:15,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 53 remaining) [2024-01-29 22:51:15,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 53 remaining) [2024-01-29 22:51:15,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 53 remaining) [2024-01-29 22:51:15,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 53 remaining) [2024-01-29 22:51:15,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 53 remaining) [2024-01-29 22:51:15,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 53 remaining) [2024-01-29 22:51:15,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 53 remaining) [2024-01-29 22:51:15,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:51:15,801 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-29 22:51:15,803 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-29 22:51:15,804 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-29 22:51:15,875 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 22:51:15,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 158 flow [2024-01-29 22:51:15,926 INFO L124 PetriNetUnfolderBase]: 0/78 cut-off events. [2024-01-29 22:51:15,936 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 22:51:15,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 78 events. 0/78 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 333 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2024-01-29 22:51:15,937 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 74 transitions, 158 flow [2024-01-29 22:51:15,939 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 74 transitions, 158 flow [2024-01-29 22:51:15,940 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:51:15,940 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;@7f62da45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:51:15,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-01-29 22:51:15,944 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:51:15,944 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-01-29 22:51:15,945 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 22:51:15,945 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:51:15,945 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 22:51:15,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-01-29 22:51:15,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:51:15,946 INFO L85 PathProgramCache]: Analyzing trace with hash 354154275, now seen corresponding path program 1 times [2024-01-29 22:51:15,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:51:15,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937506345] [2024-01-29 22:51:15,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:51:15,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:51:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:51:16,060 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 22:51:16,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:51:16,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937506345] [2024-01-29 22:51:16,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937506345] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:51:16,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:51:16,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:51:16,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870804995] [2024-01-29 22:51:16,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:51:16,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:51:16,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:51:16,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:51:16,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:51:16,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 74 [2024-01-29 22:51:16,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 22:51:16,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:51:16,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 74 [2024-01-29 22:51:16,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:51:16,202 INFO L124 PetriNetUnfolderBase]: 79/173 cut-off events. [2024-01-29 22:51:16,202 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-01-29 22:51:16,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 173 events. 79/173 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 897 event pairs, 4 based on Foata normal form. 12/110 useless extension candidates. Maximal degree in co-relation 269. Up to 135 conditions per place. [2024-01-29 22:51:16,207 INFO L140 encePairwiseOnDemand]: 56/74 looper letters, 18 selfloop transitions, 2 changer transitions 0/25 dead transitions. [2024-01-29 22:51:16,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 25 transitions, 105 flow [2024-01-29 22:51:16,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:51:16,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:51:16,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-01-29 22:51:16,211 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3141891891891892 [2024-01-29 22:51:16,211 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 158 flow. Second operand 4 states and 93 transitions. [2024-01-29 22:51:16,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 25 transitions, 105 flow [2024-01-29 22:51:16,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 25 transitions, 105 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:51:16,214 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 50 flow [2024-01-29 22:51:16,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2024-01-29 22:51:16,215 INFO L281 CegarLoopForPetriNet]: 79 programPoint places, -53 predicate places. [2024-01-29 22:51:16,215 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 50 flow [2024-01-29 22:51:16,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 22:51:16,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:51:16,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:51:16,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:51:16,216 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-01-29 22:51:16,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:51:16,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1906118944, now seen corresponding path program 1 times [2024-01-29 22:51:16,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:51:16,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593148367] [2024-01-29 22:51:16,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:51:16,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:51:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:51:16,332 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 22:51:16,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:51:16,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593148367] [2024-01-29 22:51:16,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593148367] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:51:16,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:51:16,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:51:16,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321601691] [2024-01-29 22:51:16,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:51:16,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:51:16,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:51:16,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:51:16,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:51:16,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 74 [2024-01-29 22:51:16,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 22:51:16,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:51:16,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 74 [2024-01-29 22:51:16,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:51:16,417 INFO L124 PetriNetUnfolderBase]: 51/117 cut-off events. [2024-01-29 22:51:16,418 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2024-01-29 22:51:16,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 117 events. 51/117 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 512 event pairs, 15 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 161. Up to 66 conditions per place. [2024-01-29 22:51:16,419 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 14 selfloop transitions, 2 changer transitions 0/20 dead transitions. [2024-01-29 22:51:16,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 20 transitions, 91 flow [2024-01-29 22:51:16,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:51:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:51:16,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2024-01-29 22:51:16,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.1891891891891892 [2024-01-29 22:51:16,421 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 50 flow. Second operand 4 states and 56 transitions. [2024-01-29 22:51:16,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 20 transitions, 91 flow [2024-01-29 22:51:16,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 20 transitions, 88 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:51:16,424 INFO L231 Difference]: Finished difference. Result has 24 places, 15 transitions, 45 flow [2024-01-29 22:51:16,424 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=41, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=45, PETRI_PLACES=24, PETRI_TRANSITIONS=15} [2024-01-29 22:51:16,427 INFO L281 CegarLoopForPetriNet]: 79 programPoint places, -55 predicate places. [2024-01-29 22:51:16,427 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 15 transitions, 45 flow [2024-01-29 22:51:16,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 22:51:16,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:51:16,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:51:16,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:51:16,428 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-01-29 22:51:16,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:51:16,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1906118943, now seen corresponding path program 1 times [2024-01-29 22:51:16,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:51:16,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945658701] [2024-01-29 22:51:16,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:51:16,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:51:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:51:16,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 22:51:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 22:51:16,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 22:51:16,463 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 22:51:16,463 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 79 remaining) [2024-01-29 22:51:16,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 79 remaining) [2024-01-29 22:51:16,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 79 remaining) [2024-01-29 22:51:16,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 79 remaining) [2024-01-29 22:51:16,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 79 remaining) [2024-01-29 22:51:16,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 79 remaining) [2024-01-29 22:51:16,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 79 remaining) [2024-01-29 22:51:16,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 79 remaining) [2024-01-29 22:51:16,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (70 of 79 remaining) [2024-01-29 22:51:16,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 79 remaining) [2024-01-29 22:51:16,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 79 remaining) [2024-01-29 22:51:16,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 79 remaining) [2024-01-29 22:51:16,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 79 remaining) [2024-01-29 22:51:16,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 79 remaining) [2024-01-29 22:51:16,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 79 remaining) [2024-01-29 22:51:16,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 79 remaining) [2024-01-29 22:51:16,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 79 remaining) [2024-01-29 22:51:16,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 79 remaining) [2024-01-29 22:51:16,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 79 remaining) [2024-01-29 22:51:16,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 79 remaining) [2024-01-29 22:51:16,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 79 remaining) [2024-01-29 22:51:16,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 79 remaining) [2024-01-29 22:51:16,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 79 remaining) [2024-01-29 22:51:16,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 79 remaining) [2024-01-29 22:51:16,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 79 remaining) [2024-01-29 22:51:16,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 79 remaining) [2024-01-29 22:51:16,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 79 remaining) [2024-01-29 22:51:16,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 79 remaining) [2024-01-29 22:51:16,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 79 remaining) [2024-01-29 22:51:16,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 79 remaining) [2024-01-29 22:51:16,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 79 remaining) [2024-01-29 22:51:16,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 79 remaining) [2024-01-29 22:51:16,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 79 remaining) [2024-01-29 22:51:16,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 79 remaining) [2024-01-29 22:51:16,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 79 remaining) [2024-01-29 22:51:16,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (43 of 79 remaining) [2024-01-29 22:51:16,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 79 remaining) [2024-01-29 22:51:16,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 79 remaining) [2024-01-29 22:51:16,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 79 remaining) [2024-01-29 22:51:16,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 79 remaining) [2024-01-29 22:51:16,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 79 remaining) [2024-01-29 22:51:16,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 79 remaining) [2024-01-29 22:51:16,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 79 remaining) [2024-01-29 22:51:16,478 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 79 remaining) [2024-01-29 22:51:16,478 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 79 remaining) [2024-01-29 22:51:16,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 79 remaining) [2024-01-29 22:51:16,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 79 remaining) [2024-01-29 22:51:16,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 79 remaining) [2024-01-29 22:51:16,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 79 remaining) [2024-01-29 22:51:16,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 79 remaining) [2024-01-29 22:51:16,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 79 remaining) [2024-01-29 22:51:16,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 79 remaining) [2024-01-29 22:51:16,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 79 remaining) [2024-01-29 22:51:16,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 79 remaining) [2024-01-29 22:51:16,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 79 remaining) [2024-01-29 22:51:16,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 79 remaining) [2024-01-29 22:51:16,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 79 remaining) [2024-01-29 22:51:16,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 79 remaining) [2024-01-29 22:51:16,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 79 remaining) [2024-01-29 22:51:16,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 79 remaining) [2024-01-29 22:51:16,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (18 of 79 remaining) [2024-01-29 22:51:16,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 79 remaining) [2024-01-29 22:51:16,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 79 remaining) [2024-01-29 22:51:16,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 79 remaining) [2024-01-29 22:51:16,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 79 remaining) [2024-01-29 22:51:16,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 79 remaining) [2024-01-29 22:51:16,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 79 remaining) [2024-01-29 22:51:16,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 79 remaining) [2024-01-29 22:51:16,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 79 remaining) [2024-01-29 22:51:16,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 79 remaining) [2024-01-29 22:51:16,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 79 remaining) [2024-01-29 22:51:16,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 79 remaining) [2024-01-29 22:51:16,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 79 remaining) [2024-01-29 22:51:16,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 79 remaining) [2024-01-29 22:51:16,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 79 remaining) [2024-01-29 22:51:16,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 79 remaining) [2024-01-29 22:51:16,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 79 remaining) [2024-01-29 22:51:16,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 79 remaining) [2024-01-29 22:51:16,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 79 remaining) [2024-01-29 22:51:16,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:51:16,483 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-01-29 22:51:16,489 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-01-29 22:51:16,489 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:51:16,508 INFO L503 ceAbstractionStarter]: Automizer considered 25 witness invariants [2024-01-29 22:51:16,511 INFO L504 ceAbstractionStarter]: WitnessConsidered=25 [2024-01-29 22:51:16,513 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:51:16 BasicIcfg [2024-01-29 22:51:16,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:51:16,514 INFO L158 Benchmark]: Toolchain (without parser) took 2919.63ms. Allocated memory was 144.7MB in the beginning and 178.3MB in the end (delta: 33.6MB). Free memory was 83.9MB in the beginning and 82.3MB in the end (delta: 1.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-01-29 22:51:16,514 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 144.7MB. Free memory is still 106.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:51:16,519 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 144.7MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:51:16,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.10ms. Allocated memory is still 144.7MB. Free memory was 83.6MB in the beginning and 59.4MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-29 22:51:16,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.45ms. Allocated memory is still 144.7MB. Free memory was 59.3MB in the beginning and 113.3MB in the end (delta: -54.0MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-01-29 22:51:16,520 INFO L158 Benchmark]: Boogie Preprocessor took 107.45ms. Allocated memory was 144.7MB in the beginning and 178.3MB in the end (delta: 33.6MB). Free memory was 113.3MB in the beginning and 148.0MB in the end (delta: -34.7MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2024-01-29 22:51:16,520 INFO L158 Benchmark]: RCFGBuilder took 643.39ms. Allocated memory is still 178.3MB. Free memory was 148.0MB in the beginning and 101.8MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-01-29 22:51:16,521 INFO L158 Benchmark]: TraceAbstraction took 1541.89ms. Allocated memory is still 178.3MB. Free memory was 100.8MB in the beginning and 82.3MB in the end (delta: 18.5MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-01-29 22:51:16,522 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 144.7MB. Free memory is still 106.8MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 144.7MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 542.10ms. Allocated memory is still 144.7MB. Free memory was 83.6MB in the beginning and 59.4MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.45ms. Allocated memory is still 144.7MB. Free memory was 59.3MB in the beginning and 113.3MB in the end (delta: -54.0MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.45ms. Allocated memory was 144.7MB in the beginning and 178.3MB in the end (delta: 33.6MB). Free memory was 113.3MB in the beginning and 148.0MB in the end (delta: -34.7MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * RCFGBuilder took 643.39ms. Allocated memory is still 178.3MB. Free memory was 148.0MB in the beginning and 101.8MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1541.89ms. Allocated memory is still 178.3MB. Free memory was 100.8MB in the beginning and 82.3MB in the end (delta: 18.5MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 705]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L700] 0 _Bool s = 0; [L701] 0 _Bool l = 0; [L717] 0 pthread_t t; VAL [l=0, s=0, t={3:0}] [L718] COND TRUE 0 1 [L718] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [arg={0:0}, l=0, s=0, t={3:0}] [L704] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, l=0, s=0] [L705] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[s],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[s],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]]] [L705] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[l],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]],BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[l],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[l],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]],BinaryExpression[COMPEQ,IdentifierExpression[l],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] VAL [arg={0:0}, arg={0:0}, l=0, s=0] - UnprovableResult [Line: 704]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 705]: 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: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 718]: 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 3 procedures, 75 locations, 53 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: 0.7s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 7 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.3s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 110 locations, 79 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: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 11 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 22:51:16,563 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