./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_unknown_1_pos.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/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_unknown_1_pos.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 14:38:57,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:38:57,305 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:38:57,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:38:57,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:38:57,333 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:38:57,333 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:38:57,334 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:38:57,334 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:38:57,337 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:38:57,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:38:57,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:38:57,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:38:57,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:38:57,339 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:38:57,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:38:57,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:38:57,340 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:38:57,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:38:57,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:38:57,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:38:57,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:38:57,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:38:57,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:38:57,341 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:38:57,341 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:38:57,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:38:57,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:38:57,342 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:38:57,342 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:38:57,343 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:38:57,343 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:38:57,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:38:57,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:38:57,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:38:57,344 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:38:57,344 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:38:57,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:38:57,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:38:57,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:38:57,344 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:38:57,345 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:38:57,345 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:38:57,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:38:57,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:38:57,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:38:57,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:38:57,571 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:38:57,572 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:38:57,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_unknown_1_pos.yml/witness.yml [2024-01-29 14:38:57,732 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:38:57,732 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:38:57,734 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2024-01-29 14:38:58,776 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:38:58,971 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:38:58,974 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2024-01-29 14:38:58,984 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58dfca480/63b21659a0584695851723d07e8d9203/FLAG725724563 [2024-01-29 14:38:58,994 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58dfca480/63b21659a0584695851723d07e8d9203 [2024-01-29 14:38:58,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:38:58,996 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:38:58,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:38:58,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:38:59,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:38:59,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:38:57" (1/2) ... [2024-01-29 14:38:59,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385fef09 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:38:59, skipping insertion in model container [2024-01-29 14:38:59,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:38:57" (1/2) ... [2024-01-29 14:38:59,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@43ebdcad and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:38:59, skipping insertion in model container [2024-01-29 14:38:59,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:38:58" (2/2) ... [2024-01-29 14:38:59,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385fef09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59, skipping insertion in model container [2024-01-29 14:38:59,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:38:58" (2/2) ... [2024-01-29 14:38:59,006 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:38:59,053 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:38:59,054 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] glob1 == 0 [2024-01-29 14:38:59,054 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] 0 <= t [2024-01-29 14:38:59,054 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-29 14:38:59,054 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t <= 1 [2024-01-29 14:38:59,054 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t == 0 || t == 1 [2024-01-29 14:38:59,055 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-29 14:38:59,055 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] glob1 == 0 [2024-01-29 14:38:59,055 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] glob1 == 0 [2024-01-29 14:38:59,055 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] t == 42 [2024-01-29 14:38:59,055 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-29 14:38:59,055 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 0 [2024-01-29 14:38:59,055 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] t <= 1 [2024-01-29 14:38:59,056 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] t == 0 || t == 1 [2024-01-29 14:38:59,056 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] 0 <= t [2024-01-29 14:38:59,056 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-29 14:38:59,056 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-29 14:38:59,056 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-29 14:38:59,056 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-29 14:38:59,056 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-29 14:38:59,056 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-29 14:38:59,057 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 || glob1 == 1 [2024-01-29 14:38:59,057 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] 0 <= glob1 [2024-01-29 14:38:59,057 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-29 14:38:59,057 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 <= 1 [2024-01-29 14:38:59,058 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 <= 1 [2024-01-29 14:38:59,058 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] 0 <= glob1 [2024-01-29 14:38:59,058 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-29 14:38:59,058 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 == 0 || glob1 == 1 [2024-01-29 14:38:59,058 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-29 14:38:59,058 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L689] (unsigned long )arg == 0UL [2024-01-29 14:38:59,058 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L689] glob1 == 0 [2024-01-29 14:38:59,058 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 <= 1 [2024-01-29 14:38:59,059 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 == 0 || glob1 == 1 [2024-01-29 14:38:59,059 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 0 <= glob1 [2024-01-29 14:38:59,059 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-29 14:38:59,059 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t == 0 || t == 1 [2024-01-29 14:38:59,059 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 0 <= t [2024-01-29 14:38:59,060 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t <= 1 [2024-01-29 14:38:59,061 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 <= 1 [2024-01-29 14:38:59,061 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 == 0 || glob1 == 1 [2024-01-29 14:38:59,061 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t <= 1 [2024-01-29 14:38:59,061 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= t [2024-01-29 14:38:59,061 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-29 14:38:59,061 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t == 0 || t == 1 [2024-01-29 14:38:59,062 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= glob1 [2024-01-29 14:38:59,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:38:59,269 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2024-01-29 14:38:59,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:38:59,439 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:38:59,449 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i[1097,1110] [2024-01-29 14:38:59,449 WARN L424 MainDispatcher]: Unable to annotate void __VERIFIER_assert(int cond) { if(!(cond)) { ERROR: {reach_error();abort();} } } with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local 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 14:38:59,538 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:38:59,606 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:38:59,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59 WrapperNode [2024-01-29 14:38:59,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:38:59,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:38:59,608 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:38:59,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:38:59,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,649 INFO L138 Inliner]: procedures = 164, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2024-01-29 14:38:59,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:38:59,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:38:59,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:38:59,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:38:59,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,690 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 5, 2]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-01-29 14:38:59,691 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,709 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:38:59,719 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:38:59,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:38:59,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:38:59,720 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (1/1) ... [2024-01-29 14:38:59,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:38:59,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:38:59,805 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 14:38:59,824 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 14:38:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:38:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:38:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:38:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:38:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:38:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:38:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 14:38:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:38:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:38:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-29 14:38:59,838 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-29 14:38:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:38:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:38:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:38:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:38:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 14:38:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:38:59,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:38:59,841 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 14:38:59,963 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:38:59,964 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:39:00,177 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:39:00,184 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:39:00,250 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:39:00,250 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:39:00,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:39:00 BoogieIcfgContainer [2024-01-29 14:39:00,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:39:00,252 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:39:00,253 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:39:00,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:39:00,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:38:57" (1/4) ... [2024-01-29 14:39:00,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bd190f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:39:00, skipping insertion in model container [2024-01-29 14:39:00,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:38:58" (2/4) ... [2024-01-29 14:39:00,256 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bd190f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:39:00, skipping insertion in model container [2024-01-29 14:39:00,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:38:59" (3/4) ... [2024-01-29 14:39:00,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58bd190f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:39:00, skipping insertion in model container [2024-01-29 14:39:00,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:39:00" (4/4) ... [2024-01-29 14:39:00,258 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2024-01-29 14:39:00,270 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:39:00,272 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-01-29 14:39:00,272 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:39:00,332 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-29 14:39:00,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 94 transitions, 195 flow [2024-01-29 14:39:00,383 INFO L124 PetriNetUnfolderBase]: 2/93 cut-off events. [2024-01-29 14:39:00,383 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:39:00,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 2/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 87. Up to 2 conditions per place. [2024-01-29 14:39:00,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 94 transitions, 195 flow [2024-01-29 14:39:00,389 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 91 transitions, 185 flow [2024-01-29 14:39:00,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:39:00,401 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;@72002e0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:39:00,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2024-01-29 14:39:00,403 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:39:00,403 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:39:00,403 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:39:00,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:39:00,404 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:39:00,404 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-29 14:39:00,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:39:00,408 INFO L85 PathProgramCache]: Analyzing trace with hash 8684, now seen corresponding path program 1 times [2024-01-29 14:39:00,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:39:00,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289249387] [2024-01-29 14:39:00,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:39:00,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:39:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:39:00,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:39:00,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:39:00,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289249387] [2024-01-29 14:39:00,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289249387] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:39:00,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:39:00,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:39:00,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21450335] [2024-01-29 14:39:00,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:39:00,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:39:00,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:39:00,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:39:00,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:39:00,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2024-01-29 14:39:00,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 91 transitions, 185 flow. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 14:39:00,672 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:39:00,672 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2024-01-29 14:39:00,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:39:00,771 INFO L124 PetriNetUnfolderBase]: 126/602 cut-off events. [2024-01-29 14:39:00,771 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:39:00,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 926 conditions, 602 events. 126/602 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3476 event pairs, 62 based on Foata normal form. 38/471 useless extension candidates. Maximal degree in co-relation 915. Up to 164 conditions per place. [2024-01-29 14:39:00,776 INFO L140 encePairwiseOnDemand]: 75/94 looper letters, 34 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2024-01-29 14:39:00,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 95 transitions, 269 flow [2024-01-29 14:39:00,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:39:00,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:39:00,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2024-01-29 14:39:00,785 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8085106382978723 [2024-01-29 14:39:00,787 INFO L175 Difference]: Start difference. First operand has 93 places, 91 transitions, 185 flow. Second operand 3 states and 228 transitions. [2024-01-29 14:39:00,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 95 transitions, 269 flow [2024-01-29 14:39:00,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 268 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:39:00,791 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 218 flow [2024-01-29 14:39:00,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2024-01-29 14:39:00,795 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -1 predicate places. [2024-01-29 14:39:00,795 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 218 flow [2024-01-29 14:39:00,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 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 14:39:00,795 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:39:00,796 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-29 14:39:00,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:39:00,796 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-29 14:39:00,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:39:00,796 INFO L85 PathProgramCache]: Analyzing trace with hash 259105612, now seen corresponding path program 1 times [2024-01-29 14:39:00,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:39:00,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886028139] [2024-01-29 14:39:00,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:39:00,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:39:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:39:00,913 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 14:39:00,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:39:00,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886028139] [2024-01-29 14:39:00,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886028139] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:39:00,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:39:00,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:39:00,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364321798] [2024-01-29 14:39:00,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:39:00,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:39:00,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:39:00,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:39:00,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:39:00,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 94 [2024-01-29 14:39:00,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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 14:39:00,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:39:00,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 94 [2024-01-29 14:39:00,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:39:01,051 INFO L124 PetriNetUnfolderBase]: 73/646 cut-off events. [2024-01-29 14:39:01,051 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-01-29 14:39:01,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 646 events. 73/646 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4122 event pairs, 10 based on Foata normal form. 60/577 useless extension candidates. Maximal degree in co-relation 929. Up to 154 conditions per place. [2024-01-29 14:39:01,055 INFO L140 encePairwiseOnDemand]: 83/94 looper letters, 20 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2024-01-29 14:39:01,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 83 transitions, 252 flow [2024-01-29 14:39:01,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:39:01,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:39:01,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 290 transitions. [2024-01-29 14:39:01,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7712765957446809 [2024-01-29 14:39:01,057 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 218 flow. Second operand 4 states and 290 transitions. [2024-01-29 14:39:01,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 83 transitions, 252 flow [2024-01-29 14:39:01,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 83 transitions, 244 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:39:01,060 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 196 flow [2024-01-29 14:39:01,060 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=196, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-01-29 14:39:01,060 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -9 predicate places. [2024-01-29 14:39:01,060 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 196 flow [2024-01-29 14:39:01,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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 14:39:01,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:39:01,061 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:39:01,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:39:01,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-29 14:39:01,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:39:01,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1637831660, now seen corresponding path program 1 times [2024-01-29 14:39:01,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:39:01,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695407582] [2024-01-29 14:39:01,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:39:01,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:39:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:39:01,093 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 14:39:01,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:39:01,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695407582] [2024-01-29 14:39:01,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695407582] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:39:01,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:39:01,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:39:01,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172046692] [2024-01-29 14:39:01,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:39:01,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:39:01,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:39:01,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:39:01,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:39:01,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 94 [2024-01-29 14:39:01,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 14:39:01,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:39:01,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 94 [2024-01-29 14:39:01,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:39:01,196 INFO L124 PetriNetUnfolderBase]: 147/689 cut-off events. [2024-01-29 14:39:01,196 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-01-29 14:39:01,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 689 events. 147/689 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4156 event pairs, 126 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 1136. Up to 307 conditions per place. [2024-01-29 14:39:01,199 INFO L140 encePairwiseOnDemand]: 91/94 looper letters, 34 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2024-01-29 14:39:01,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 83 transitions, 276 flow [2024-01-29 14:39:01,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:39:01,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:39:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 216 transitions. [2024-01-29 14:39:01,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7659574468085106 [2024-01-29 14:39:01,200 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 196 flow. Second operand 3 states and 216 transitions. [2024-01-29 14:39:01,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 83 transitions, 276 flow [2024-01-29 14:39:01,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 83 transitions, 273 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:39:01,202 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 201 flow [2024-01-29 14:39:01,202 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=201, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-01-29 14:39:01,203 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -9 predicate places. [2024-01-29 14:39:01,203 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 201 flow [2024-01-29 14:39:01,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 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 14:39:01,203 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:39:01,203 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:39:01,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:39:01,203 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-29 14:39:01,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:39:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1998183826, now seen corresponding path program 1 times [2024-01-29 14:39:01,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:39:01,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012935848] [2024-01-29 14:39:01,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:39:01,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:39:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:39:01,228 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 14:39:01,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:39:01,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012935848] [2024-01-29 14:39:01,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012935848] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:39:01,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:39:01,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:39:01,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849187045] [2024-01-29 14:39:01,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:39:01,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:39:01,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:39:01,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:39:01,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:39:01,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2024-01-29 14:39:01,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 201 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 14:39:01,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:39:01,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2024-01-29 14:39:01,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:39:01,299 INFO L124 PetriNetUnfolderBase]: 72/417 cut-off events. [2024-01-29 14:39:01,299 INFO L125 PetriNetUnfolderBase]: For 89/103 co-relation queries the response was YES. [2024-01-29 14:39:01,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 417 events. 72/417 cut-off events. For 89/103 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2153 event pairs, 50 based on Foata normal form. 54/378 useless extension candidates. Maximal degree in co-relation 630. Up to 129 conditions per place. [2024-01-29 14:39:01,302 INFO L140 encePairwiseOnDemand]: 82/94 looper letters, 25 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2024-01-29 14:39:01,302 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 75 transitions, 227 flow [2024-01-29 14:39:01,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:39:01,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:39:01,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2024-01-29 14:39:01,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8014184397163121 [2024-01-29 14:39:01,304 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 201 flow. Second operand 3 states and 226 transitions. [2024-01-29 14:39:01,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 75 transitions, 227 flow [2024-01-29 14:39:01,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 75 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:39:01,308 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 163 flow [2024-01-29 14:39:01,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2024-01-29 14:39:01,313 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -17 predicate places. [2024-01-29 14:39:01,314 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 163 flow [2024-01-29 14:39:01,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 14:39:01,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:39:01,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:39:01,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:39:01,314 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-29 14:39:01,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:39:01,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1783618102, now seen corresponding path program 1 times [2024-01-29 14:39:01,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:39:01,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496334461] [2024-01-29 14:39:01,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:39:01,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:39:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:39:01,406 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 14:39:01,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:39:01,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496334461] [2024-01-29 14:39:01,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496334461] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:39:01,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:39:01,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:39:01,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236396991] [2024-01-29 14:39:01,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:39:01,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:39:01,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:39:01,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:39:01,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:39:01,560 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 94 [2024-01-29 14:39:01,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 163 flow. Second operand has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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 14:39:01,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:39:01,561 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 94 [2024-01-29 14:39:01,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:39:01,656 INFO L124 PetriNetUnfolderBase]: 159/696 cut-off events. [2024-01-29 14:39:01,656 INFO L125 PetriNetUnfolderBase]: For 90/92 co-relation queries the response was YES. [2024-01-29 14:39:01,657 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1168 conditions, 696 events. 159/696 cut-off events. For 90/92 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3870 event pairs, 84 based on Foata normal form. 66/729 useless extension candidates. Maximal degree in co-relation 1154. Up to 183 conditions per place. [2024-01-29 14:39:01,658 INFO L140 encePairwiseOnDemand]: 78/94 looper letters, 41 selfloop transitions, 4 changer transitions 5/83 dead transitions. [2024-01-29 14:39:01,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 83 transitions, 293 flow [2024-01-29 14:39:01,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:39:01,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:39:01,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2024-01-29 14:39:01,659 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6329787234042553 [2024-01-29 14:39:01,659 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 163 flow. Second operand 4 states and 238 transitions. [2024-01-29 14:39:01,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 83 transitions, 293 flow [2024-01-29 14:39:01,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 83 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:39:01,662 INFO L231 Difference]: Finished difference. Result has 79 places, 68 transitions, 190 flow [2024-01-29 14:39:01,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=79, PETRI_TRANSITIONS=68} [2024-01-29 14:39:01,664 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2024-01-29 14:39:01,664 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 68 transitions, 190 flow [2024-01-29 14:39:01,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 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 14:39:01,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:39:01,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:39:01,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:39:01,665 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-29 14:39:01,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:39:01,665 INFO L85 PathProgramCache]: Analyzing trace with hash 280848107, now seen corresponding path program 1 times [2024-01-29 14:39:01,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:39:01,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130128263] [2024-01-29 14:39:01,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:39:01,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:39:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:39:01,786 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 14:39:01,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:39:01,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130128263] [2024-01-29 14:39:01,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130128263] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:39:01,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:39:01,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:39:01,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158589283] [2024-01-29 14:39:01,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:39:01,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:39:01,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:39:01,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:39:01,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:39:01,821 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 94 [2024-01-29 14:39:01,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 68 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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 14:39:01,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:39:01,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 94 [2024-01-29 14:39:01,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:39:01,875 INFO L124 PetriNetUnfolderBase]: 35/337 cut-off events. [2024-01-29 14:39:01,875 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-01-29 14:39:01,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 337 events. 35/337 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1538 event pairs, 8 based on Foata normal form. 13/339 useless extension candidates. Maximal degree in co-relation 516. Up to 54 conditions per place. [2024-01-29 14:39:01,876 INFO L140 encePairwiseOnDemand]: 87/94 looper letters, 18 selfloop transitions, 7 changer transitions 3/75 dead transitions. [2024-01-29 14:39:01,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 75 transitions, 258 flow [2024-01-29 14:39:01,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:39:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:39:01,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 321 transitions. [2024-01-29 14:39:01,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6829787234042554 [2024-01-29 14:39:01,877 INFO L175 Difference]: Start difference. First operand has 79 places, 68 transitions, 190 flow. Second operand 5 states and 321 transitions. [2024-01-29 14:39:01,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 75 transitions, 258 flow [2024-01-29 14:39:01,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 235 flow, removed 7 selfloop flow, removed 3 redundant places. [2024-01-29 14:39:01,882 INFO L231 Difference]: Finished difference. Result has 79 places, 66 transitions, 175 flow [2024-01-29 14:39:01,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=175, PETRI_PLACES=79, PETRI_TRANSITIONS=66} [2024-01-29 14:39:01,885 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -14 predicate places. [2024-01-29 14:39:01,885 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 66 transitions, 175 flow [2024-01-29 14:39:01,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.5) internal successors, (242), 4 states have internal predecessors, (242), 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 14:39:01,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:39:01,885 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:39:01,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:39:01,885 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-29 14:39:01,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:39:01,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1951049356, now seen corresponding path program 1 times [2024-01-29 14:39:01,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:39:01,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031868934] [2024-01-29 14:39:01,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:39:01,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:39:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:39:01,941 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 14:39:01,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:39:01,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031868934] [2024-01-29 14:39:01,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031868934] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:39:01,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:39:01,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:39:01,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431371031] [2024-01-29 14:39:01,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:39:01,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:39:01,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:39:01,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:39:01,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:39:02,026 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 94 [2024-01-29 14:39:02,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 66 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:39:02,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:39:02,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 94 [2024-01-29 14:39:02,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:39:02,087 INFO L124 PetriNetUnfolderBase]: 34/259 cut-off events. [2024-01-29 14:39:02,089 INFO L125 PetriNetUnfolderBase]: For 75/75 co-relation queries the response was YES. [2024-01-29 14:39:02,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 259 events. 34/259 cut-off events. For 75/75 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 947 event pairs, 19 based on Foata normal form. 49/290 useless extension candidates. Maximal degree in co-relation 406. Up to 62 conditions per place. [2024-01-29 14:39:02,090 INFO L140 encePairwiseOnDemand]: 79/94 looper letters, 20 selfloop transitions, 2 changer transitions 24/65 dead transitions. [2024-01-29 14:39:02,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 65 transitions, 229 flow [2024-01-29 14:39:02,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:39:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:39:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 289 transitions. [2024-01-29 14:39:02,092 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6148936170212767 [2024-01-29 14:39:02,092 INFO L175 Difference]: Start difference. First operand has 79 places, 66 transitions, 175 flow. Second operand 5 states and 289 transitions. [2024-01-29 14:39:02,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 65 transitions, 229 flow [2024-01-29 14:39:02,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 65 transitions, 217 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:39:02,094 INFO L231 Difference]: Finished difference. Result has 66 places, 36 transitions, 94 flow [2024-01-29 14:39:02,094 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=94, PETRI_PLACES=66, PETRI_TRANSITIONS=36} [2024-01-29 14:39:02,094 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -27 predicate places. [2024-01-29 14:39:02,095 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 36 transitions, 94 flow [2024-01-29 14:39:02,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:39:02,095 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:39:02,095 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:39:02,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:39:02,095 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-29 14:39:02,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:39:02,096 INFO L85 PathProgramCache]: Analyzing trace with hash 322047283, now seen corresponding path program 1 times [2024-01-29 14:39:02,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:39:02,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486681505] [2024-01-29 14:39:02,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:39:02,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:39:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:39:02,156 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 14:39:02,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:39:02,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486681505] [2024-01-29 14:39:02,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486681505] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:39:02,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:39:02,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 14:39:02,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232954952] [2024-01-29 14:39:02,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:39:02,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 14:39:02,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:39:02,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 14:39:02,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-01-29 14:39:02,228 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 94 [2024-01-29 14:39:02,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 36 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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 14:39:02,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:39:02,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 94 [2024-01-29 14:39:02,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:39:02,273 INFO L124 PetriNetUnfolderBase]: 29/173 cut-off events. [2024-01-29 14:39:02,273 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-01-29 14:39:02,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 303 conditions, 173 events. 29/173 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 620 event pairs, 13 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 289. Up to 43 conditions per place. [2024-01-29 14:39:02,274 INFO L140 encePairwiseOnDemand]: 88/94 looper letters, 17 selfloop transitions, 2 changer transitions 11/46 dead transitions. [2024-01-29 14:39:02,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 46 transitions, 172 flow [2024-01-29 14:39:02,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 14:39:02,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 14:39:02,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 282 transitions. [2024-01-29 14:39:02,275 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-01-29 14:39:02,275 INFO L175 Difference]: Start difference. First operand has 66 places, 36 transitions, 94 flow. Second operand 6 states and 282 transitions. [2024-01-29 14:39:02,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 46 transitions, 172 flow [2024-01-29 14:39:02,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 169 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:39:02,276 INFO L231 Difference]: Finished difference. Result has 52 places, 33 transitions, 89 flow [2024-01-29 14:39:02,276 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=89, PETRI_PLACES=52, PETRI_TRANSITIONS=33} [2024-01-29 14:39:02,276 INFO L281 CegarLoopForPetriNet]: 93 programPoint places, -41 predicate places. [2024-01-29 14:39:02,276 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 33 transitions, 89 flow [2024-01-29 14:39:02,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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 14:39:02,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:39:02,277 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:39:02,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 14:39:02,277 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 70 more)] === [2024-01-29 14:39:02,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:39:02,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1271264989, now seen corresponding path program 1 times [2024-01-29 14:39:02,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:39:02,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728758878] [2024-01-29 14:39:02,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:39:02,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:39:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:39:02,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-29 14:39:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-29 14:39:02,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-29 14:39:02,303 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-29 14:39:02,304 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr18ASSERT_VIOLATIONERROR_FUNCTION (72 of 73 remaining) [2024-01-29 14:39:02,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 73 remaining) [2024-01-29 14:39:02,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 73 remaining) [2024-01-29 14:39:02,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (69 of 73 remaining) [2024-01-29 14:39:02,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 73 remaining) [2024-01-29 14:39:02,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 73 remaining) [2024-01-29 14:39:02,305 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 73 remaining) [2024-01-29 14:39:02,306 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr18ASSERT_VIOLATIONERROR_FUNCTION (50 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr24ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr25ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr26ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 73 remaining) [2024-01-29 14:39:02,307 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr27ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr28ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr29ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr30ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr31ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr32ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr33ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr34ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 73 remaining) [2024-01-29 14:39:02,308 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 73 remaining) [2024-01-29 14:39:02,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr24ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr25ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr26ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr27ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr28ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr29ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr30ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr31ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr32ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr33ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 73 remaining) [2024-01-29 14:39:02,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr34ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 73 remaining) [2024-01-29 14:39:02,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 14:39:02,311 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:39:02,315 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:39:02,315 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:39:02,353 INFO L503 ceAbstractionStarter]: Automizer considered 36 witness invariants [2024-01-29 14:39:02,353 INFO L504 ceAbstractionStarter]: WitnessConsidered=36 [2024-01-29 14:39:02,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:39:02 BasicIcfg [2024-01-29 14:39:02,354 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:39:02,355 INFO L158 Benchmark]: Toolchain (without parser) took 3358.98ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 104.7MB in the beginning and 215.8MB in the end (delta: -111.1MB). Peak memory consumption was 104.6MB. Max. memory is 16.1GB. [2024-01-29 14:39:02,355 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 184.5MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:39:02,355 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:39:02,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.67ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 104.5MB in the beginning and 218.1MB in the end (delta: -113.6MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2024-01-29 14:39:02,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.81ms. Allocated memory is still 251.7MB. Free memory was 218.1MB in the beginning and 216.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:39:02,355 INFO L158 Benchmark]: Boogie Preprocessor took 66.57ms. Allocated memory is still 251.7MB. Free memory was 216.0MB in the beginning and 213.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:39:02,356 INFO L158 Benchmark]: RCFGBuilder took 531.48ms. Allocated memory is still 251.7MB. Free memory was 213.9MB in the beginning and 187.7MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-01-29 14:39:02,356 INFO L158 Benchmark]: TraceAbstraction took 2101.68ms. Allocated memory is still 251.7MB. Free memory was 186.6MB in the beginning and 215.8MB in the end (delta: -29.2MB). Peak memory consumption was 117.6MB. Max. memory is 16.1GB. [2024-01-29 14:39:02,357 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 0.15ms. Allocated memory is still 184.5MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 184.5MB. Free memory is still 151.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.67ms. Allocated memory was 184.5MB in the beginning and 251.7MB in the end (delta: 67.1MB). Free memory was 104.5MB in the beginning and 218.1MB in the end (delta: -113.6MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.81ms. Allocated memory is still 251.7MB. Free memory was 218.1MB in the beginning and 216.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.57ms. Allocated memory is still 251.7MB. Free memory was 216.0MB in the beginning and 213.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 531.48ms. Allocated memory is still 251.7MB. Free memory was 213.9MB in the beginning and 187.7MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2101.68ms. Allocated memory is still 251.7MB. Free memory was 186.6MB in the beginning and 215.8MB in the end (delta: -29.2MB). Peak memory consumption was 117.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}] [L698] 0 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]]]] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}] [L685] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] [L685] 1 int t = __VERIFIER_nondet_int(); [L686] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L687] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L687] COND TRUE 1 t == 42 VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[42]]]] VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L688] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]]]] [L688] 1 glob1 = 1 VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]] [L690] 1 t = glob1 VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[t],IntegerLiteral[1]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[t]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[1]]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,CastExpression[ACSLType[unsigned long],IdentifierExpression[arg]],IntegerLiteral[0UL]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IntegerLiteral[0],IdentifierExpression[glob1]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]]] VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] 1 CodeAnnotStmt[Assertion[BinaryExpression[COMPLEQ,IdentifierExpression[glob1],IntegerLiteral[1]]]] [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 686]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 687]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 173 locations, 73 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.0s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 861 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 531 mSDsluCounter, 321 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 169 mSDsCounter, 168 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 801 IncrementalHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 168 mSolverCounterUnsat, 152 mSDtfsCounter, 801 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred in iteration=1, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 14:39:02,389 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