./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 ab2e0ac4 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-ab2e0ac-m [2024-01-29 14:12:44,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:12:44,525 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:12:44,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:12:44,531 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:12:44,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:12:44,558 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:12:44,558 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:12:44,559 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:12:44,563 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:12:44,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:12:44,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:12:44,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:12:44,566 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:12:44,566 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:12:44,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:12:44,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:12:44,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:12:44,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:12:44,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:12:44,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:12:44,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:12:44,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:12:44,568 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:12:44,568 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:12:44,569 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:12:44,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:12:44,569 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:12:44,570 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:12:44,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:12:44,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:12:44,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:12:44,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:12:44,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:12:44,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:12:44,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:12:44,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:12:44,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:12:44,572 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:12:44,572 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:12:44,572 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:12:44,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:12:44,573 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:12:44,573 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:12:44,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:12:44,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:12:44,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:12:44,835 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:12:44,836 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:12:44,836 INFO L431 ainManager$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 14:12:45,008 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:12:45,008 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:12:45,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2024-01-29 14:12:46,218 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:12:46,422 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:12:46,423 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2024-01-29 14:12:46,434 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e1399cc7/33411bb2ca9a48828c9d2fa61a551e10/FLAGfef728d8c [2024-01-29 14:12:46,447 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e1399cc7/33411bb2ca9a48828c9d2fa61a551e10 [2024-01-29 14:12:46,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:12:46,450 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:12:46,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:12:46,451 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:12:46,455 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:12:46,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:12:45" (1/2) ... [2024-01-29 14:12:46,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c20b7ef and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:12:46, skipping insertion in model container [2024-01-29 14:12:46,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:12:45" (1/2) ... [2024-01-29 14:12:46,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@8628144 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:12:46, skipping insertion in model container [2024-01-29 14:12:46,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:12:46" (2/2) ... [2024-01-29 14:12:46,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c20b7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:46, skipping insertion in model container [2024-01-29 14:12:46,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:12:46" (2/2) ... [2024-01-29 14:12:46,460 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:12:46,492 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:12:46,494 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] (unsigned long )arg == 0UL [2024-01-29 14:12:46,494 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] (unsigned long )arg == 0UL [2024-01-29 14:12:46,494 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] s == (_Bool)0 || s == (_Bool)1 [2024-01-29 14:12:46,494 INFO L98 nessWitnessExtractor]: Location invariant before [L711-L711] l == (_Bool)0 || l == (_Bool)1 [2024-01-29 14:12:46,494 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] (unsigned long )arg == 0UL [2024-01-29 14:12:46,495 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] (unsigned long )arg == 0UL [2024-01-29 14:12:46,495 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] l == (_Bool)1 [2024-01-29 14:12:46,496 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (unsigned long )arg == 0UL [2024-01-29 14:12:46,496 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] l == (_Bool)1 || (l == (_Bool)0 || l == (_Bool)1) [2024-01-29 14:12:46,496 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (unsigned long )arg == 0UL [2024-01-29 14:12:46,496 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] s == (_Bool)0 || s == (_Bool)1 [2024-01-29 14:12:46,496 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] s == (_Bool)0 [2024-01-29 14:12:46,496 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] (unsigned long )arg == 0UL [2024-01-29 14:12:46,497 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] l == (_Bool)0 || l == (_Bool)1 [2024-01-29 14:12:46,497 INFO L98 nessWitnessExtractor]: Location invariant before [L706-L706] s == (_Bool)0 || s == (_Bool)1 [2024-01-29 14:12:46,497 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] s == (_Bool)0 || s == (_Bool)1 [2024-01-29 14:12:46,497 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] l == (_Bool)1 [2024-01-29 14:12:46,497 INFO L98 nessWitnessExtractor]: Location invariant before [L712-L712] (unsigned long )arg == 0UL [2024-01-29 14:12:46,497 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] s == (_Bool)0 [2024-01-29 14:12:46,497 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] l == (_Bool)1 [2024-01-29 14:12:46,497 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] l == (_Bool)1 || (l == (_Bool)0 || l == (_Bool)1) [2024-01-29 14:12:46,498 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (unsigned long )arg == 0UL [2024-01-29 14:12:46,498 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (unsigned long )arg == 0UL [2024-01-29 14:12:46,498 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] s == (_Bool)0 || s == (_Bool)1 [2024-01-29 14:12:46,498 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] (unsigned long )arg == 0UL [2024-01-29 14:12:46,498 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] s == (_Bool)0 [2024-01-29 14:12:46,499 INFO L98 nessWitnessExtractor]: Location invariant before [L708-L708] l == (_Bool)0 || l == (_Bool)1 [2024-01-29 14:12:46,499 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] s == (_Bool)1 [2024-01-29 14:12:46,499 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] l == (_Bool)0 || l == (_Bool)1 [2024-01-29 14:12:46,499 INFO L98 nessWitnessExtractor]: Location invariant before [L709-L709] (unsigned long )arg == 0UL [2024-01-29 14:12:46,499 INFO L98 nessWitnessExtractor]: Location invariant before [L707-L707] (unsigned long )arg == 0UL [2024-01-29 14:12:46,536 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:12:46,859 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 14:12:46,869 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:12:46,877 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local [2024-01-29 14:12:46,943 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 14:12:46,951 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 14:12:46,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:12:47,044 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:12:47,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47 WrapperNode [2024-01-29 14:12:47,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:12:47,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:12:47,047 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:12:47,047 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:12:47,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,081 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,104 INFO L138 Inliner]: procedures = 169, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-01-29 14:12:47,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:12:47,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:12:47,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:12:47,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:12:47,114 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,116 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,127 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 14:12:47,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,128 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,132 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:12:47,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:12:47,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:12:47,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:12:47,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (1/1) ... [2024-01-29 14:12:47,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:12:47,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:12:47,166 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 14:12:47,174 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 14:12:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-01-29 14:12:47,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-01-29 14:12:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:12:47,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:12:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 14:12:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:12:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:12:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:12:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:12:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:12:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 14:12:47,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:12:47,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:12:47,217 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 14:12:47,345 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:12:47,348 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:12:47,479 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:12:47,479 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:12:47,614 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:12:47,614 INFO L320 CfgBuilder]: Removed 1 assume(true) statements. [2024-01-29 14:12:47,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:12:47 BoogieIcfgContainer [2024-01-29 14:12:47,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:12:47,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:12:47,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:12:47,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:12:47,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:12:45" (1/4) ... [2024-01-29 14:12:47,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3e9234 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:12:47, skipping insertion in model container [2024-01-29 14:12:47,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:12:46" (2/4) ... [2024-01-29 14:12:47,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3e9234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:12:47, skipping insertion in model container [2024-01-29 14:12:47,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:12:47" (3/4) ... [2024-01-29 14:12:47,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3e9234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:12:47, skipping insertion in model container [2024-01-29 14:12:47,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:12:47" (4/4) ... [2024-01-29 14:12:47,623 INFO L112 eAbstractionObserver]: Analyzing ICFG 46_monabsex2_vs.i [2024-01-29 14:12:47,637 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:12:47,638 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-01-29 14:12:47,638 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:12:47,684 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:12:47,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 39 transitions, 82 flow [2024-01-29 14:12:47,749 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2024-01-29 14:12:47,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:12:47,754 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 14:12:47,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 39 transitions, 82 flow [2024-01-29 14:12:47,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 39 transitions, 82 flow [2024-01-29 14:12:47,770 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:12:47,776 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;@fef0b21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:12:47,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-01-29 14:12:47,780 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:12:47,781 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-01-29 14:12:47,781 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:12:47,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:47,782 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:12:47,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 50 more)] === [2024-01-29 14:12:47,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:47,786 INFO L85 PathProgramCache]: Analyzing trace with hash 283501943, now seen corresponding path program 1 times [2024-01-29 14:12:47,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:47,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179040752] [2024-01-29 14:12:47,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:47,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:48,197 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 14:12:48,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:48,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179040752] [2024-01-29 14:12:48,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179040752] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:48,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:48,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:12:48,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219132122] [2024-01-29 14:12:48,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:48,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:12:48,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:48,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:12:48,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:12:48,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 39 [2024-01-29 14:12:48,260 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 14:12:48,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:48,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 39 [2024-01-29 14:12:48,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:48,301 INFO L124 PetriNetUnfolderBase]: 5/22 cut-off events. [2024-01-29 14:12:48,301 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:12:48,302 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 14:12:48,304 INFO L140 encePairwiseOnDemand]: 28/39 looper letters, 8 selfloop transitions, 2 changer transitions 0/12 dead transitions. [2024-01-29 14:12:48,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 16 places, 12 transitions, 48 flow [2024-01-29 14:12:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:12:48,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:12:48,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2024-01-29 14:12:48,314 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.23717948717948717 [2024-01-29 14:12:48,315 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 82 flow. Second operand 4 states and 37 transitions. [2024-01-29 14:12:48,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 16 places, 12 transitions, 48 flow [2024-01-29 14:12:48,317 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 14:12:48,319 INFO L231 Difference]: Finished difference. Result has 16 places, 10 transitions, 28 flow [2024-01-29 14:12:48,320 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 14:12:48,322 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -26 predicate places. [2024-01-29 14:12:48,323 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 10 transitions, 28 flow [2024-01-29 14:12:48,323 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 14:12:48,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:48,323 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1] [2024-01-29 14:12:48,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:12:48,324 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 14:12:48,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:48,325 INFO L85 PathProgramCache]: Analyzing trace with hash 283501697, now seen corresponding path program 1 times [2024-01-29 14:12:48,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:48,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410439738] [2024-01-29 14:12:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:48,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:48,336 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:12:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:48,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:12:48,358 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:12:48,359 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2024-01-29 14:12:48,360 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 53 remaining) [2024-01-29 14:12:48,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 53 remaining) [2024-01-29 14:12:48,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 53 remaining) [2024-01-29 14:12:48,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 53 remaining) [2024-01-29 14:12:48,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 53 remaining) [2024-01-29 14:12:48,361 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 53 remaining) [2024-01-29 14:12:48,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 53 remaining) [2024-01-29 14:12:48,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (44 of 53 remaining) [2024-01-29 14:12:48,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 53 remaining) [2024-01-29 14:12:48,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 53 remaining) [2024-01-29 14:12:48,362 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 53 remaining) [2024-01-29 14:12:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 53 remaining) [2024-01-29 14:12:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 53 remaining) [2024-01-29 14:12:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 53 remaining) [2024-01-29 14:12:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 53 remaining) [2024-01-29 14:12:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 53 remaining) [2024-01-29 14:12:48,363 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 53 remaining) [2024-01-29 14:12:48,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 53 remaining) [2024-01-29 14:12:48,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 53 remaining) [2024-01-29 14:12:48,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 53 remaining) [2024-01-29 14:12:48,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 53 remaining) [2024-01-29 14:12:48,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 53 remaining) [2024-01-29 14:12:48,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 53 remaining) [2024-01-29 14:12:48,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 53 remaining) [2024-01-29 14:12:48,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 53 remaining) [2024-01-29 14:12:48,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 53 remaining) [2024-01-29 14:12:48,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 53 remaining) [2024-01-29 14:12:48,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 53 remaining) [2024-01-29 14:12:48,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 53 remaining) [2024-01-29 14:12:48,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 53 remaining) [2024-01-29 14:12:48,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 53 remaining) [2024-01-29 14:12:48,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 53 remaining) [2024-01-29 14:12:48,366 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 53 remaining) [2024-01-29 14:12:48,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (18 of 53 remaining) [2024-01-29 14:12:48,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 53 remaining) [2024-01-29 14:12:48,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 53 remaining) [2024-01-29 14:12:48,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 53 remaining) [2024-01-29 14:12:48,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 53 remaining) [2024-01-29 14:12:48,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 53 remaining) [2024-01-29 14:12:48,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 53 remaining) [2024-01-29 14:12:48,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 53 remaining) [2024-01-29 14:12:48,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 53 remaining) [2024-01-29 14:12:48,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 53 remaining) [2024-01-29 14:12:48,368 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 53 remaining) [2024-01-29 14:12:48,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 53 remaining) [2024-01-29 14:12:48,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 53 remaining) [2024-01-29 14:12:48,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 53 remaining) [2024-01-29 14:12:48,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 53 remaining) [2024-01-29 14:12:48,369 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 53 remaining) [2024-01-29 14:12:48,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 53 remaining) [2024-01-29 14:12:48,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 53 remaining) [2024-01-29 14:12:48,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 53 remaining) [2024-01-29 14:12:48,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:12:48,370 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-01-29 14:12:48,372 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-01-29 14:12:48,373 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-01-29 14:12:48,393 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-01-29 14:12:48,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 74 transitions, 158 flow [2024-01-29 14:12:48,423 INFO L124 PetriNetUnfolderBase]: 0/78 cut-off events. [2024-01-29 14:12:48,424 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-29 14:12:48,424 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 14:12:48,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 74 transitions, 158 flow [2024-01-29 14:12:48,425 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 74 transitions, 158 flow [2024-01-29 14:12:48,426 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:12:48,427 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;@fef0b21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:12:48,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-01-29 14:12:48,429 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:12:48,429 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-01-29 14:12:48,429 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:12:48,429 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:48,429 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:12:48,429 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-01-29 14:12:48,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:48,430 INFO L85 PathProgramCache]: Analyzing trace with hash 354154275, now seen corresponding path program 1 times [2024-01-29 14:12:48,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:48,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980937698] [2024-01-29 14:12:48,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:48,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:48,495 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 14:12:48,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:48,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980937698] [2024-01-29 14:12:48,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980937698] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:48,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:48,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:12:48,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693211032] [2024-01-29 14:12:48,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:48,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:12:48,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:48,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:12:48,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:12:48,512 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 74 [2024-01-29 14:12:48,512 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 14:12:48,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:48,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 74 [2024-01-29 14:12:48,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:48,570 INFO L124 PetriNetUnfolderBase]: 95/204 cut-off events. [2024-01-29 14:12:48,571 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-01-29 14:12:48,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 204 events. 95/204 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1092 event pairs, 5 based on Foata normal form. 14/125 useless extension candidates. Maximal degree in co-relation 327. Up to 160 conditions per place. [2024-01-29 14:12:48,573 INFO L140 encePairwiseOnDemand]: 57/74 looper letters, 20 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2024-01-29 14:12:48,573 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 113 flow [2024-01-29 14:12:48,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:12:48,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:12:48,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-01-29 14:12:48,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.3141891891891892 [2024-01-29 14:12:48,575 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 158 flow. Second operand 4 states and 93 transitions. [2024-01-29 14:12:48,575 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 113 flow [2024-01-29 14:12:48,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 113 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 14:12:48,576 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 52 flow [2024-01-29 14:12:48,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=52, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2024-01-29 14:12:48,577 INFO L281 CegarLoopForPetriNet]: 79 programPoint places, -52 predicate places. [2024-01-29 14:12:48,577 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 52 flow [2024-01-29 14:12:48,577 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 14:12:48,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:48,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:12:48,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:12:48,578 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-01-29 14:12:48,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:48,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1906118944, now seen corresponding path program 1 times [2024-01-29 14:12:48,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:48,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418717937] [2024-01-29 14:12:48,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:48,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:48,651 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 14:12:48,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:48,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418717937] [2024-01-29 14:12:48,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418717937] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:48,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:48,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:12:48,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984318917] [2024-01-29 14:12:48,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:48,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:12:48,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:48,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:12:48,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:12:48,660 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 74 [2024-01-29 14:12:48,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 14:12:48,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:48,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 74 [2024-01-29 14:12:48,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:48,706 INFO L124 PetriNetUnfolderBase]: 49/133 cut-off events. [2024-01-29 14:12:48,706 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-01-29 14:12:48,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 253 conditions, 133 events. 49/133 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 751 event pairs, 49 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 237. Up to 99 conditions per place. [2024-01-29 14:12:48,709 INFO L140 encePairwiseOnDemand]: 71/74 looper letters, 10 selfloop transitions, 1 changer transitions 0/17 dead transitions. [2024-01-29 14:12:48,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 17 transitions, 70 flow [2024-01-29 14:12:48,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:12:48,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:12:48,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2024-01-29 14:12:48,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.2882882882882883 [2024-01-29 14:12:48,711 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 52 flow. Second operand 3 states and 64 transitions. [2024-01-29 14:12:48,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 17 transitions, 70 flow [2024-01-29 14:12:48,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 67 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:12:48,713 INFO L231 Difference]: Finished difference. Result has 25 places, 17 transitions, 47 flow [2024-01-29 14:12:48,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=45, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=47, PETRI_PLACES=25, PETRI_TRANSITIONS=17} [2024-01-29 14:12:48,714 INFO L281 CegarLoopForPetriNet]: 79 programPoint places, -54 predicate places. [2024-01-29 14:12:48,714 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 17 transitions, 47 flow [2024-01-29 14:12:48,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 14:12:48,715 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:48,715 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:12:48,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:12:48,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-01-29 14:12:48,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:48,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1906118941, now seen corresponding path program 1 times [2024-01-29 14:12:48,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:48,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437123886] [2024-01-29 14:12:48,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:48,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:12:48,831 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 14:12:48,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:12:48,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437123886] [2024-01-29 14:12:48,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437123886] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:12:48,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:12:48,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:12:48,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636605971] [2024-01-29 14:12:48,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:12:48,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:12:48,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:12:48,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:12:48,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:12:48,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 74 [2024-01-29 14:12:48,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 17 transitions, 47 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 14:12:48,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:12:48,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 74 [2024-01-29 14:12:48,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:12:48,859 INFO L124 PetriNetUnfolderBase]: 11/43 cut-off events. [2024-01-29 14:12:48,860 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-01-29 14:12:48,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 43 events. 11/43 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 134 event pairs, 11 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 79. Up to 29 conditions per place. [2024-01-29 14:12:48,861 INFO L140 encePairwiseOnDemand]: 69/74 looper letters, 6 selfloop transitions, 1 changer transitions 0/13 dead transitions. [2024-01-29 14:12:48,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 13 transitions, 53 flow [2024-01-29 14:12:48,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:12:48,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:12:48,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-01-29 14:12:48,864 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.27927927927927926 [2024-01-29 14:12:48,864 INFO L175 Difference]: Start difference. First operand has 25 places, 17 transitions, 47 flow. Second operand 3 states and 62 transitions. [2024-01-29 14:12:48,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 13 transitions, 53 flow [2024-01-29 14:12:48,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 13 transitions, 52 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:12:48,866 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 40 flow [2024-01-29 14:12:48,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2024-01-29 14:12:48,868 INFO L281 CegarLoopForPetriNet]: 79 programPoint places, -57 predicate places. [2024-01-29 14:12:48,868 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 40 flow [2024-01-29 14:12:48,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 14:12:48,868 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:12:48,869 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 14:12:48,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:12:48,870 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT === [thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 76 more)] === [2024-01-29 14:12:48,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:12:48,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1906118939, now seen corresponding path program 1 times [2024-01-29 14:12:48,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:12:48,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418504787] [2024-01-29 14:12:48,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:12:48,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:12:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:48,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:12:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:12:48,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:12:48,908 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:12:48,909 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 79 remaining) [2024-01-29 14:12:48,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 79 remaining) [2024-01-29 14:12:48,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 79 remaining) [2024-01-29 14:12:48,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 79 remaining) [2024-01-29 14:12:48,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 79 remaining) [2024-01-29 14:12:48,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 79 remaining) [2024-01-29 14:12:48,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 79 remaining) [2024-01-29 14:12:48,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 79 remaining) [2024-01-29 14:12:48,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (70 of 79 remaining) [2024-01-29 14:12:48,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 79 remaining) [2024-01-29 14:12:48,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 79 remaining) [2024-01-29 14:12:48,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 79 remaining) [2024-01-29 14:12:48,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 79 remaining) [2024-01-29 14:12:48,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 79 remaining) [2024-01-29 14:12:48,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 79 remaining) [2024-01-29 14:12:48,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 79 remaining) [2024-01-29 14:12:48,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 79 remaining) [2024-01-29 14:12:48,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 79 remaining) [2024-01-29 14:12:48,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 79 remaining) [2024-01-29 14:12:48,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 79 remaining) [2024-01-29 14:12:48,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 79 remaining) [2024-01-29 14:12:48,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 79 remaining) [2024-01-29 14:12:48,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 79 remaining) [2024-01-29 14:12:48,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 79 remaining) [2024-01-29 14:12:48,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 79 remaining) [2024-01-29 14:12:48,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 79 remaining) [2024-01-29 14:12:48,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 79 remaining) [2024-01-29 14:12:48,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 79 remaining) [2024-01-29 14:12:48,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 79 remaining) [2024-01-29 14:12:48,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 79 remaining) [2024-01-29 14:12:48,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 79 remaining) [2024-01-29 14:12:48,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 79 remaining) [2024-01-29 14:12:48,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 79 remaining) [2024-01-29 14:12:48,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 79 remaining) [2024-01-29 14:12:48,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 79 remaining) [2024-01-29 14:12:48,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (43 of 79 remaining) [2024-01-29 14:12:48,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 79 remaining) [2024-01-29 14:12:48,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 79 remaining) [2024-01-29 14:12:48,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 79 remaining) [2024-01-29 14:12:48,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 79 remaining) [2024-01-29 14:12:48,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 79 remaining) [2024-01-29 14:12:48,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 79 remaining) [2024-01-29 14:12:48,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 79 remaining) [2024-01-29 14:12:48,912 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 79 remaining) [2024-01-29 14:12:48,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONERROR_FUNCTION (18 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 79 remaining) [2024-01-29 14:12:48,914 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 79 remaining) [2024-01-29 14:12:48,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 79 remaining) [2024-01-29 14:12:48,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 79 remaining) [2024-01-29 14:12:48,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 79 remaining) [2024-01-29 14:12:48,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 79 remaining) [2024-01-29 14:12:48,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 79 remaining) [2024-01-29 14:12:48,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 79 remaining) [2024-01-29 14:12:48,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 79 remaining) [2024-01-29 14:12:48,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 79 remaining) [2024-01-29 14:12:48,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 79 remaining) [2024-01-29 14:12:48,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 79 remaining) [2024-01-29 14:12:48,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 79 remaining) [2024-01-29 14:12:48,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:12:48,915 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-01-29 14:12:48,935 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-01-29 14:12:48,936 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:12:48,949 INFO L503 ceAbstractionStarter]: Automizer considered 25 witness invariants [2024-01-29 14:12:48,952 INFO L504 ceAbstractionStarter]: WitnessConsidered=25 [2024-01-29 14:12:48,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:12:48 BasicIcfg [2024-01-29 14:12:48,953 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:12:48,954 INFO L158 Benchmark]: Toolchain (without parser) took 2503.78ms. Allocated memory is still 178.3MB. Free memory was 102.4MB in the beginning and 123.3MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:12:48,954 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:12:48,954 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 178.3MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:12:48,954 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.11ms. Allocated memory is still 178.3MB. Free memory was 102.2MB in the beginning and 145.6MB in the end (delta: -43.4MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-01-29 14:12:48,954 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.77ms. Allocated memory is still 178.3MB. Free memory was 145.6MB in the beginning and 143.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:12:48,955 INFO L158 Benchmark]: Boogie Preprocessor took 33.03ms. Allocated memory is still 178.3MB. Free memory was 143.5MB in the beginning and 141.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:12:48,955 INFO L158 Benchmark]: RCFGBuilder took 475.82ms. Allocated memory is still 178.3MB. Free memory was 141.4MB in the beginning and 103.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-01-29 14:12:48,955 INFO L158 Benchmark]: TraceAbstraction took 1337.34ms. Allocated memory is still 178.3MB. Free memory was 102.8MB in the beginning and 123.3MB in the end (delta: -20.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:12:48,956 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.08ms. Allocated memory is still 178.3MB. Free memory is still 150.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 594.11ms. Allocated memory is still 178.3MB. Free memory was 102.2MB in the beginning and 145.6MB in the end (delta: -43.4MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.77ms. Allocated memory is still 178.3MB. Free memory was 145.6MB in the beginning and 143.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.03ms. Allocated memory is still 178.3MB. Free memory was 143.5MB in the beginning and 141.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 475.82ms. Allocated memory is still 178.3MB. Free memory was 141.4MB in the beginning and 103.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1337.34ms. Allocated memory is still 178.3MB. Free memory was 102.8MB in the beginning and 123.3MB in the end (delta: -20.5MB). There was no memory consumed. 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[COMPEQ,IdentifierExpression[s],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] [L705] 1 CodeAnnotStmt[Assertion[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[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L705] 1 CodeAnnotStmt[Assertion[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]]]]]]] [L705] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L705] 1 CodeAnnotStmt[Assertion[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: 0.1s, 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, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 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, 0.0s SatisfiabilityAnalysisTime, 0.2s 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: 0.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 3 mSDtfsCounter, 62 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: 10, 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 14:12:48,983 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