./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_27-multiple-protecting2_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cb09d658 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_27-multiple-protecting2_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_27-multiple-protecting2_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-cb09d65-m [2024-01-27 23:06:47,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:06:47,073 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:06:47,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:06:47,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:06:47,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:06:47,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:06:47,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:06:47,102 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:06:47,105 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:06:47,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:06:47,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:06:47,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:06:47,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:06:47,107 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:06:47,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:06:47,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:06:47,108 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:06:47,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:06:47,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:06:47,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:06:47,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:06:47,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:06:47,109 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:06:47,110 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:06:47,110 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:06:47,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:06:47,110 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:06:47,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:06:47,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:06:47,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:06:47,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:06:47,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:06:47,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:06:47,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:06:47,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:06:47,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:06:47,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:06:47,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:06:47,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:06:47,114 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:06:47,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:06:47,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:06:47,114 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:06:47,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:06:47,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:06:47,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:06:47,341 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:06:47,342 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:06:47,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-01-27 23:06:48,487 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:06:48,738 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:06:48,739 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-01-27 23:06:48,755 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a88c8a7b/d3236dc0a2b44815bca42482b8bdaa86/FLAGdc5a781e5 [2024-01-27 23:06:48,767 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a88c8a7b/d3236dc0a2b44815bca42482b8bdaa86 [2024-01-27 23:06:48,769 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:06:48,770 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:06:48,770 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_27-multiple-protecting2_true.yml/witness.yml [2024-01-27 23:06:48,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:06:48,893 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:06:48,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:06:48,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:06:48,898 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:06:48,899 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:06:48" (1/2) ... [2024-01-27 23:06:48,900 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c37848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:48, skipping insertion in model container [2024-01-27 23:06:48,900 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:06:48" (1/2) ... [2024-01-27 23:06:48,901 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@68052c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:48, skipping insertion in model container [2024-01-27 23:06:48,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:48" (2/2) ... [2024-01-27 23:06:48,902 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c37848 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:48, skipping insertion in model container [2024-01-27 23:06:48,902 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:48" (2/2) ... [2024-01-27 23:06:48,903 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:06:48,961 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:06:48,962 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] g2 == 0 [2024-01-27 23:06:48,962 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] g1 == 0 [2024-01-27 23:06:48,962 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g2 == 0 [2024-01-27 23:06:48,963 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 23:06:48,963 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g1 == 1 [2024-01-27 23:06:48,963 INFO L98 nessWitnessExtractor]: Location invariant before [L725-L725] g1 == 0 [2024-01-27 23:06:48,964 INFO L98 nessWitnessExtractor]: Location invariant before [L725-L725] g2 == 0 [2024-01-27 23:06:48,964 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] (unsigned long )arg == 0UL [2024-01-27 23:06:48,964 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] g1 == 0 [2024-01-27 23:06:48,964 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] g2 == 0 [2024-01-27 23:06:48,964 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g1 == 1 [2024-01-27 23:06:48,964 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-27 23:06:48,964 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] g1 == 0 [2024-01-27 23:06:48,964 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-27 23:06:48,965 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] g1 == 0 [2024-01-27 23:06:48,965 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] g2 == 0 [2024-01-27 23:06:48,965 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] g2 == 0 [2024-01-27 23:06:48,965 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] g1 == 0 [2024-01-27 23:06:48,965 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] g1 == 0 [2024-01-27 23:06:48,965 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-27 23:06:48,965 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g2 == 0 [2024-01-27 23:06:48,966 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] (unsigned long )arg == 0UL [2024-01-27 23:06:48,966 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g1 == 0 [2024-01-27 23:06:48,966 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (unsigned long )arg == 0UL [2024-01-27 23:06:48,966 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g1 == 0 [2024-01-27 23:06:48,966 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] (unsigned long )arg == 0UL [2024-01-27 23:06:48,966 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g2 == 1 [2024-01-27 23:06:48,967 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] g2 == 0 [2024-01-27 23:06:48,967 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] g1 == 0 [2024-01-27 23:06:48,967 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g2 == 0 [2024-01-27 23:06:48,967 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g1 == 0 [2024-01-27 23:06:48,967 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 23:06:48,967 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g2 == 0 [2024-01-27 23:06:48,967 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 23:06:48,968 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g1 == 1 [2024-01-27 23:06:48,968 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] (unsigned long )arg == 0UL [2024-01-27 23:06:48,968 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g2 == 1 [2024-01-27 23:06:48,968 INFO L98 nessWitnessExtractor]: Location invariant before [L724-L724] g1 == 0 [2024-01-27 23:06:48,969 INFO L98 nessWitnessExtractor]: Location invariant before [L719-L719] g2 == 0 [2024-01-27 23:06:48,969 INFO L98 nessWitnessExtractor]: Location invariant before [L719-L719] g1 == 0 [2024-01-27 23:06:48,970 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] g1 == 0 [2024-01-27 23:06:48,970 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] g2 == 0 [2024-01-27 23:06:48,970 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-27 23:06:48,970 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] g1 == 0 [2024-01-27 23:06:48,970 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] g2 == 0 [2024-01-27 23:06:48,970 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] g1 == 0 [2024-01-27 23:06:48,971 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] (unsigned long )arg == 0UL [2024-01-27 23:06:48,971 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] g2 == 0 [2024-01-27 23:06:48,971 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] g1 == 0 [2024-01-27 23:06:48,971 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] g2 == 0 [2024-01-27 23:06:48,971 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] g2 == 0 [2024-01-27 23:06:48,971 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] g1 == 0 [2024-01-27 23:06:48,972 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] (unsigned long )arg == 0UL [2024-01-27 23:06:48,972 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g1 == 0 [2024-01-27 23:06:48,972 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] (unsigned long )arg == 0UL [2024-01-27 23:06:48,973 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g2 == 1 [2024-01-27 23:06:48,973 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g2 == 0 [2024-01-27 23:06:48,973 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] (unsigned long )arg == 0UL [2024-01-27 23:06:48,973 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-27 23:06:48,974 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g1 == 0 [2024-01-27 23:06:48,974 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 23:06:48,974 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] g1 == 0 [2024-01-27 23:06:48,974 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] g2 == 0 [2024-01-27 23:06:48,974 INFO L98 nessWitnessExtractor]: Location invariant before [L717-L717] g2 == 0 [2024-01-27 23:06:48,974 INFO L98 nessWitnessExtractor]: Location invariant before [L717-L717] g1 == 0 [2024-01-27 23:06:48,974 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g1 == 0 [2024-01-27 23:06:48,974 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g2 == 0 [2024-01-27 23:06:48,975 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g2 == 0 [2024-01-27 23:06:48,975 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g1 == 0 [2024-01-27 23:06:48,975 INFO L98 nessWitnessExtractor]: Location invariant before [L727-L727] g1 == 0 [2024-01-27 23:06:48,975 INFO L98 nessWitnessExtractor]: Location invariant before [L726-L726] g1 == 0 [2024-01-27 23:06:48,975 INFO L98 nessWitnessExtractor]: Location invariant before [L726-L726] g2 == 0 [2024-01-27 23:06:49,012 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:06:49,172 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_27-multiple-protecting2_true.i[1097,1110] [2024-01-27 23:06:49,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:06:49,351 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 23:06:49,359 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_27-multiple-protecting2_true.i[1097,1110] [2024-01-27 23:06:49,360 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 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 [2024-01-27 23:06:49,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:06:49,482 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:06:49,482 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49 WrapperNode [2024-01-27 23:06:49,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:06:49,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:06:49,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:06:49,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:06:49,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,539 INFO L138 Inliner]: procedures = 164, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 149 [2024-01-27 23:06:49,540 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:06:49,540 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:06:49,540 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:06:49,540 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:06:49,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,561 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,579 INFO L175 MemorySlicer]: Split 21 memory accesses to 6 slices as follows [2, 5, 5, 5, 2, 2]. 24 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0, 0]. The 2 writes are split as follows [0, 0, 0, 0, 1, 1]. [2024-01-27 23:06:49,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,589 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,600 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:06:49,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:06:49,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:06:49,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:06:49,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (1/1) ... [2024-01-27 23:06:49,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:06:49,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:06:49,640 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) [2024-01-27 23:06:49,663 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 [2024-01-27 23:06:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:06:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:06:49,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:06:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 23:06:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 23:06:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-27 23:06:49,677 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-01-27 23:06:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-01-27 23:06:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:06:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:06:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:06:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 23:06:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 23:06:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-27 23:06:49,678 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 23:06:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:06:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:06:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-27 23:06:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-27 23:06:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:06:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:06:49,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:06:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:06:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 23:06:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 23:06:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-27 23:06:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 23:06:49,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:06:49,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:06:49,681 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 23:06:49,800 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:06:49,802 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:06:50,134 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:06:50,135 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:06:50,240 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:06:50,240 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 23:06:50,241 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:06:50 BoogieIcfgContainer [2024-01-27 23:06:50,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:06:50,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:06:50,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:06:50,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:06:50,245 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:06:48" (1/4) ... [2024-01-27 23:06:50,245 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a048ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:06:50, skipping insertion in model container [2024-01-27 23:06:50,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:48" (2/4) ... [2024-01-27 23:06:50,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a048ead and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:06:50, skipping insertion in model container [2024-01-27 23:06:50,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:49" (3/4) ... [2024-01-27 23:06:50,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a048ead and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:06:50, skipping insertion in model container [2024-01-27 23:06:50,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:06:50" (4/4) ... [2024-01-27 23:06:50,247 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-01-27 23:06:50,261 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:06:50,262 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2024-01-27 23:06:50,262 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:06:50,319 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-27 23:06:50,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 217 transitions, 448 flow [2024-01-27 23:06:50,421 INFO L124 PetriNetUnfolderBase]: 4/215 cut-off events. [2024-01-27 23:06:50,421 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 23:06:50,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 215 events. 4/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 540 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 207. Up to 2 conditions per place. [2024-01-27 23:06:50,426 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 217 transitions, 448 flow [2024-01-27 23:06:50,436 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 213 transitions, 435 flow [2024-01-27 23:06:50,448 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:06:50,455 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;@514261d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:06:50,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2024-01-27 23:06:50,457 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:06:50,457 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:06:50,457 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:06:50,457 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:50,458 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:06:50,459 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 111 more)] === [2024-01-27 23:06:50,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:50,463 INFO L85 PathProgramCache]: Analyzing trace with hash 21582, now seen corresponding path program 1 times [2024-01-27 23:06:50,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:50,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596520325] [2024-01-27 23:06:50,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:50,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:50,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:50,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:50,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596520325] [2024-01-27 23:06:50,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596520325] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:50,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:50,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:06:50,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669236705] [2024-01-27 23:06:50,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:50,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:06:50,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:50,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:06:50,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:06:50,772 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 217 [2024-01-27 23:06:50,775 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 213 transitions, 435 flow. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2024-01-27 23:06:50,775 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:50,775 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 217 [2024-01-27 23:06:50,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:56,343 INFO L124 PetriNetUnfolderBase]: 22488/63065 cut-off events. [2024-01-27 23:06:56,343 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-01-27 23:06:56,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100829 conditions, 63065 events. 22488/63065 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 1171. Compared 794639 event pairs, 12556 based on Foata normal form. 3278/53743 useless extension candidates. Maximal degree in co-relation 100573. Up to 24140 conditions per place. [2024-01-27 23:06:56,753 INFO L140 encePairwiseOnDemand]: 171/217 looper letters, 110 selfloop transitions, 19 changer transitions 0/253 dead transitions. [2024-01-27 23:06:56,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 253 transitions, 776 flow [2024-01-27 23:06:56,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:06:56,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:06:56,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2024-01-27 23:06:56,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.82642089093702 [2024-01-27 23:06:56,777 INFO L175 Difference]: Start difference. First operand has 216 places, 213 transitions, 435 flow. Second operand 3 states and 538 transitions. [2024-01-27 23:06:56,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 253 transitions, 776 flow [2024-01-27 23:06:56,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 253 transitions, 769 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 23:06:56,802 INFO L231 Difference]: Finished difference. Result has 213 places, 222 transitions, 596 flow [2024-01-27 23:06:56,804 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=596, PETRI_PLACES=213, PETRI_TRANSITIONS=222} [2024-01-27 23:06:56,807 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -3 predicate places. [2024-01-27 23:06:56,807 INFO L495 AbstractCegarLoop]: Abstraction has has 213 places, 222 transitions, 596 flow [2024-01-27 23:06:56,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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) [2024-01-27 23:06:56,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:56,808 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 23:06:56,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:06:56,808 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 111 more)] === [2024-01-27 23:06:56,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:56,809 INFO L85 PathProgramCache]: Analyzing trace with hash 669634, now seen corresponding path program 1 times [2024-01-27 23:06:56,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:56,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754503445] [2024-01-27 23:06:56,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:56,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:56,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:56,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:56,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:56,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754503445] [2024-01-27 23:06:56,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754503445] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:56,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:56,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:06:56,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363258276] [2024-01-27 23:06:56,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:56,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:06:56,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:56,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:06:56,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:06:56,887 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 217 [2024-01-27 23:06:56,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 222 transitions, 596 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2024-01-27 23:06:56,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:56,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 217 [2024-01-27 23:06:56,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:09,154 INFO L124 PetriNetUnfolderBase]: 59380/160187 cut-off events. [2024-01-27 23:07:09,154 INFO L125 PetriNetUnfolderBase]: For 25379/26158 co-relation queries the response was YES. [2024-01-27 23:07:09,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297395 conditions, 160187 events. 59380/160187 cut-off events. For 25379/26158 co-relation queries the response was YES. Maximal size of possible extension queue 2529. Compared 2210678 event pairs, 30528 based on Foata normal form. 6063/142413 useless extension candidates. Maximal degree in co-relation 282729. Up to 64129 conditions per place. [2024-01-27 23:07:10,146 INFO L140 encePairwiseOnDemand]: 167/217 looper letters, 126 selfloop transitions, 25 changer transitions 0/274 dead transitions. [2024-01-27 23:07:10,147 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 274 transitions, 1030 flow [2024-01-27 23:07:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:07:10,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:07:10,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 521 transitions. [2024-01-27 23:07:10,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8003072196620584 [2024-01-27 23:07:10,149 INFO L175 Difference]: Start difference. First operand has 213 places, 222 transitions, 596 flow. Second operand 3 states and 521 transitions. [2024-01-27 23:07:10,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 274 transitions, 1030 flow [2024-01-27 23:07:10,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 274 transitions, 982 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:10,702 INFO L231 Difference]: Finished difference. Result has 211 places, 240 transitions, 790 flow [2024-01-27 23:07:10,702 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=790, PETRI_PLACES=211, PETRI_TRANSITIONS=240} [2024-01-27 23:07:10,703 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -5 predicate places. [2024-01-27 23:07:10,703 INFO L495 AbstractCegarLoop]: Abstraction has has 211 places, 240 transitions, 790 flow [2024-01-27 23:07:10,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 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) [2024-01-27 23:07:10,704 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:10,704 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 23:07:10,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:07:10,704 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 111 more)] === [2024-01-27 23:07:10,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:10,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1524920711, now seen corresponding path program 1 times [2024-01-27 23:07:10,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:10,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910639386] [2024-01-27 23:07:10,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:10,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:10,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:10,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:10,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910639386] [2024-01-27 23:07:10,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910639386] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:10,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:10,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:10,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717462161] [2024-01-27 23:07:10,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:10,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:10,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:10,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:10,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:10,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 217 [2024-01-27 23:07:10,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 240 transitions, 790 flow. Second operand has 4 states, 4 states have (on average 155.25) internal successors, (621), 4 states have internal predecessors, (621), 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) [2024-01-27 23:07:10,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:10,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 217 [2024-01-27 23:07:10,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:19,354 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([678] L725-1-->L19-19: Formula: (let ((.cse0 (= v_~g1~0_125 0))) (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_41| |v_ULTIMATE.start___VERIFIER_assert_~cond#1_49|) (= (ite .cse0 1 0) |v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_41|) .cse0)) InVars {~g1~0=v_~g1~0_125} OutVars{~g1~0=v_~g1~0_125, ULTIMATE.start___VERIFIER_assert_~cond#1=|v_ULTIMATE.start___VERIFIER_assert_~cond#1_49|, ULTIMATE.start___VERIFIER_assert_#in~cond#1=|v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_41|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_#in~cond#1, ULTIMATE.start___VERIFIER_assert_~cond#1][233], [Black: 223#true, 28#L690-5true, 41#L19-19true, Black: 228#true, t2_funThread1of1ForFork1InUse, 238#(and (= t_funThread1of1ForFork0_~arg.base 0) (= |t_funThread1of1ForFork0_#in~arg.base| 0) (= |t_funThread1of1ForFork0_#in~arg.offset| 0) (= t_funThread1of1ForFork0_~arg.offset 0)), 230#(= ~g1~0 0), 126#L703-2true]) [2024-01-27 23:07:19,354 INFO L294 olderBase$Statistics]: this new event has 100 ancestors and is cut-off event [2024-01-27 23:07:19,355 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2024-01-27 23:07:19,355 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2024-01-27 23:07:19,355 INFO L297 olderBase$Statistics]: existing Event has 100 ancestors and is cut-off event [2024-01-27 23:07:20,619 INFO L124 PetriNetUnfolderBase]: 39225/125347 cut-off events. [2024-01-27 23:07:20,619 INFO L125 PetriNetUnfolderBase]: For 44132/45477 co-relation queries the response was YES. [2024-01-27 23:07:20,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242286 conditions, 125347 events. 39225/125347 cut-off events. For 44132/45477 co-relation queries the response was YES. Maximal size of possible extension queue 2181. Compared 1820041 event pairs, 11817 based on Foata normal form. 10354/118856 useless extension candidates. Maximal degree in co-relation 242084. Up to 42939 conditions per place. [2024-01-27 23:07:21,345 INFO L140 encePairwiseOnDemand]: 206/217 looper letters, 92 selfloop transitions, 2 changer transitions 0/267 dead transitions. [2024-01-27 23:07:21,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 267 transitions, 1054 flow [2024-01-27 23:07:21,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:21,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:21,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 706 transitions. [2024-01-27 23:07:21,539 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8133640552995391 [2024-01-27 23:07:21,539 INFO L175 Difference]: Start difference. First operand has 211 places, 240 transitions, 790 flow. Second operand 4 states and 706 transitions. [2024-01-27 23:07:21,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 267 transitions, 1054 flow [2024-01-27 23:07:21,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 267 transitions, 1004 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:21,791 INFO L231 Difference]: Finished difference. Result has 203 places, 231 transitions, 726 flow [2024-01-27 23:07:21,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=726, PETRI_PLACES=203, PETRI_TRANSITIONS=231} [2024-01-27 23:07:21,792 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -13 predicate places. [2024-01-27 23:07:21,793 INFO L495 AbstractCegarLoop]: Abstraction has has 203 places, 231 transitions, 726 flow [2024-01-27 23:07:21,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 155.25) internal successors, (621), 4 states have internal predecessors, (621), 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) [2024-01-27 23:07:21,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:21,793 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:21,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:07:21,794 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 111 more)] === [2024-01-27 23:07:21,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:21,794 INFO L85 PathProgramCache]: Analyzing trace with hash -872625099, now seen corresponding path program 1 times [2024-01-27 23:07:21,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:21,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973017907] [2024-01-27 23:07:21,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:21,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:21,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:21,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:21,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973017907] [2024-01-27 23:07:21,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973017907] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:21,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:21,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:07:21,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828856971] [2024-01-27 23:07:21,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:21,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:21,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:21,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:21,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:21,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 217 [2024-01-27 23:07:21,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 231 transitions, 726 flow. Second operand has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 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) [2024-01-27 23:07:21,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:21,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 217 [2024-01-27 23:07:21,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:07:23,571 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([717] L718-1-->L19-7: Formula: (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_29| |v_ULTIMATE.start___VERIFIER_assert_~cond#1_41|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_29| (ite (= v_~g1~0_121 0) 1 0)) (= v_~g2~0_121 0)) InVars {~g2~0=v_~g2~0_121, ~g1~0=v_~g1~0_121} OutVars{~g2~0=v_~g2~0_121, ~g1~0=v_~g1~0_121, ULTIMATE.start___VERIFIER_assert_~cond#1=|v_ULTIMATE.start___VERIFIER_assert_~cond#1_41|, ULTIMATE.start___VERIFIER_assert_#in~cond#1=|v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_29|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_#in~cond#1, ULTIMATE.start___VERIFIER_assert_~cond#1][123], [Black: 223#true, 37#L689-3true, Black: 228#true, 160#L19-7true, 244#(and (= |t2_funThread1of1ForFork1_#in~arg.base| 0) (= t2_funThread1of1ForFork1_~arg.base 0) (= |t2_funThread1of1ForFork1_#in~arg.offset| 0) (= t2_funThread1of1ForFork1_~arg.offset 0)), 123#L700-6true, 238#(and (= t_funThread1of1ForFork0_~arg.base 0) (= |t_funThread1of1ForFork0_#in~arg.base| 0) (= |t_funThread1of1ForFork0_#in~arg.offset| 0) (= t_funThread1of1ForFork0_~arg.offset 0)), t2_funThread1of1ForFork1InUse]) [2024-01-27 23:07:23,572 INFO L294 olderBase$Statistics]: this new event has 58 ancestors and is cut-off event [2024-01-27 23:07:23,572 INFO L297 olderBase$Statistics]: existing Event has 58 ancestors and is cut-off event [2024-01-27 23:07:23,572 INFO L297 olderBase$Statistics]: existing Event has 58 ancestors and is cut-off event [2024-01-27 23:07:23,572 INFO L297 olderBase$Statistics]: existing Event has 58 ancestors and is cut-off event [2024-01-27 23:07:25,352 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([736] L699-2-->L700: Formula: (and (= v_~g2~0_70 0) (= v_~g2~0_69 (+ v_~g2~0_70 1))) InVars {~g2~0=v_~g2~0_70} OutVars{~g2~0=v_~g2~0_69, t2_funThread1of1ForFork1_#t~post11=|v_t2_funThread1of1ForFork1_#t~post11_1|} AuxVars[] AssignedVars[~g2~0, t2_funThread1of1ForFork1_#t~post11][53], [Black: 225#(= ~g2~0 0), 37#L689-3true, Black: 228#true, 244#(and (= |t2_funThread1of1ForFork1_#in~arg.base| 0) (= t2_funThread1of1ForFork1_~arg.base 0) (= |t2_funThread1of1ForFork1_#in~arg.offset| 0) (= t2_funThread1of1ForFork1_~arg.offset 0)), 198#L700true, 238#(and (= t_funThread1of1ForFork0_~arg.base 0) (= |t_funThread1of1ForFork0_#in~arg.base| 0) (= |t_funThread1of1ForFork0_#in~arg.offset| 0) (= t_funThread1of1ForFork0_~arg.offset 0)), t2_funThread1of1ForFork1InUse, 43#L722-1true]) [2024-01-27 23:07:25,353 INFO L294 olderBase$Statistics]: this new event has 69 ancestors and is not cut-off event [2024-01-27 23:07:25,353 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is not cut-off event [2024-01-27 23:07:25,353 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is not cut-off event [2024-01-27 23:07:25,353 INFO L297 olderBase$Statistics]: existing Event has 69 ancestors and is not cut-off event [2024-01-27 23:07:26,959 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([736] L699-2-->L700: Formula: (and (= v_~g2~0_70 0) (= v_~g2~0_69 (+ v_~g2~0_70 1))) InVars {~g2~0=v_~g2~0_70} OutVars{~g2~0=v_~g2~0_69, t2_funThread1of1ForFork1_#t~post11=|v_t2_funThread1of1ForFork1_#t~post11_1|} AuxVars[] AssignedVars[~g2~0, t2_funThread1of1ForFork1_#t~post11][53], [51#L692-1true, Black: 225#(= ~g2~0 0), Black: 228#true, 244#(and (= |t2_funThread1of1ForFork1_#in~arg.base| 0) (= t2_funThread1of1ForFork1_~arg.base 0) (= |t2_funThread1of1ForFork1_#in~arg.offset| 0) (= t2_funThread1of1ForFork1_~arg.offset 0)), 198#L700true, 238#(and (= t_funThread1of1ForFork0_~arg.base 0) (= |t_funThread1of1ForFork0_#in~arg.base| 0) (= |t_funThread1of1ForFork0_#in~arg.offset| 0) (= t_funThread1of1ForFork0_~arg.offset 0)), t2_funThread1of1ForFork1InUse, 43#L722-1true]) [2024-01-27 23:07:26,959 INFO L294 olderBase$Statistics]: this new event has 79 ancestors and is not cut-off event [2024-01-27 23:07:26,960 INFO L297 olderBase$Statistics]: existing Event has 79 ancestors and is not cut-off event [2024-01-27 23:07:26,960 INFO L297 olderBase$Statistics]: existing Event has 79 ancestors and is not cut-off event [2024-01-27 23:07:26,960 INFO L297 olderBase$Statistics]: existing Event has 79 ancestors and is not cut-off event [2024-01-27 23:07:30,756 INFO L124 PetriNetUnfolderBase]: 38515/120837 cut-off events. [2024-01-27 23:07:30,756 INFO L125 PetriNetUnfolderBase]: For 26551/27478 co-relation queries the response was YES. [2024-01-27 23:07:31,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226736 conditions, 120837 events. 38515/120837 cut-off events. For 26551/27478 co-relation queries the response was YES. Maximal size of possible extension queue 2101. Compared 1737573 event pairs, 11709 based on Foata normal form. 10640/114189 useless extension candidates. Maximal degree in co-relation 226718. Up to 42569 conditions per place. [2024-01-27 23:07:31,422 INFO L140 encePairwiseOnDemand]: 206/217 looper letters, 101 selfloop transitions, 2 changer transitions 0/267 dead transitions. [2024-01-27 23:07:31,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 267 transitions, 1037 flow [2024-01-27 23:07:31,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:07:31,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:07:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 715 transitions. [2024-01-27 23:07:31,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8237327188940092 [2024-01-27 23:07:31,425 INFO L175 Difference]: Start difference. First operand has 203 places, 231 transitions, 726 flow. Second operand 4 states and 715 transitions. [2024-01-27 23:07:31,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 267 transitions, 1037 flow [2024-01-27 23:07:31,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 267 transitions, 1034 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:07:31,429 INFO L231 Difference]: Finished difference. Result has 195 places, 222 transitions, 709 flow [2024-01-27 23:07:31,429 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=709, PETRI_PLACES=195, PETRI_TRANSITIONS=222} [2024-01-27 23:07:31,430 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -21 predicate places. [2024-01-27 23:07:31,430 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 222 transitions, 709 flow [2024-01-27 23:07:31,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 155.75) internal successors, (623), 4 states have internal predecessors, (623), 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) [2024-01-27 23:07:31,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:07:31,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:07:31,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 23:07:31,431 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 111 more)] === [2024-01-27 23:07:31,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:07:31,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1902230369, now seen corresponding path program 1 times [2024-01-27 23:07:31,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:07:31,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184432811] [2024-01-27 23:07:31,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:07:31,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:07:31,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:07:31,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:07:31,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:07:31,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184432811] [2024-01-27 23:07:31,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184432811] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:07:31,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:07:31,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:07:31,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581136688] [2024-01-27 23:07:31,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:07:31,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:07:31,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:07:31,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:07:31,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:07:31,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 217 [2024-01-27 23:07:31,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 222 transitions, 709 flow. Second operand has 4 states, 4 states have (on average 116.25) internal successors, (465), 4 states have internal predecessors, (465), 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) [2024-01-27 23:07:31,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:07:31,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 217 [2024-01-27 23:07:31,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand