./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 a340643f 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-a340643-m [2024-01-27 14:49:06,209 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:49:06,275 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:49:06,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:49:06,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:49:06,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:49:06,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:49:06,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:49:06,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:49:06,312 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:49:06,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:49:06,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:49:06,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:49:06,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:49:06,315 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:49:06,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:49:06,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:49:06,315 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:49:06,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:49:06,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:49:06,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:49:06,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:49:06,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:49:06,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:49:06,317 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:49:06,317 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:49:06,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:49:06,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:49:06,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:49:06,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:49:06,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:49:06,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:49:06,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:06,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:49:06,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:49:06,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:49:06,320 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:49:06,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:49:06,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:49:06,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:49:06,321 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:49:06,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:49:06,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:49:06,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:49:06,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:49:06,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:49:06,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:49:06,581 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:49:06,581 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:49:06,582 INFO L431 ainManager$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 14:49:06,729 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:49:06,730 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:49:06,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-01-27 14:49:07,988 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:49:08,248 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:49:08,249 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2024-01-27 14:49:08,260 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac57a6b37/0dac8b7d3bc34f469547f01791fdaa86/FLAG2bba5963c [2024-01-27 14:49:08,290 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac57a6b37/0dac8b7d3bc34f469547f01791fdaa86 [2024-01-27 14:49:08,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:49:08,296 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:49:08,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:08,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:49:08,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:49:08,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:06" (1/2) ... [2024-01-27 14:49:08,302 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eee94ee and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:08, skipping insertion in model container [2024-01-27 14:49:08,302 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:06" (1/2) ... [2024-01-27 14:49:08,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b0fb6ee and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:49:08, skipping insertion in model container [2024-01-27 14:49:08,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:08" (2/2) ... [2024-01-27 14:49:08,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eee94ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08, skipping insertion in model container [2024-01-27 14:49:08,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:49:08" (2/2) ... [2024-01-27 14:49:08,304 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:49:08,369 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:49:08,370 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-27 14:49:08,370 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] g2 == 1 [2024-01-27 14:49:08,370 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] (unsigned long )arg == 0UL [2024-01-27 14:49:08,370 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-27 14:49:08,370 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] g1 == 0 [2024-01-27 14:49:08,370 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] g2 == 0 [2024-01-27 14:49:08,371 INFO L98 nessWitnessExtractor]: Location invariant before [L718-L718] g1 == 0 [2024-01-27 14:49:08,371 INFO L98 nessWitnessExtractor]: Location invariant before [L719-L719] g1 == 0 [2024-01-27 14:49:08,371 INFO L98 nessWitnessExtractor]: Location invariant before [L719-L719] g2 == 0 [2024-01-27 14:49:08,371 INFO L98 nessWitnessExtractor]: Location invariant before [L727-L727] g1 == 0 [2024-01-27 14:49:08,371 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] g2 == 0 [2024-01-27 14:49:08,371 INFO L98 nessWitnessExtractor]: Location invariant before [L710-L710] g1 == 0 [2024-01-27 14:49:08,371 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g1 == 1 [2024-01-27 14:49:08,372 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] g2 == 0 [2024-01-27 14:49:08,372 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 14:49:08,372 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] g2 == 0 [2024-01-27 14:49:08,372 INFO L98 nessWitnessExtractor]: Location invariant before [L721-L721] g1 == 0 [2024-01-27 14:49:08,372 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] g1 == 0 [2024-01-27 14:49:08,372 INFO L98 nessWitnessExtractor]: Location invariant before [L720-L720] g2 == 0 [2024-01-27 14:49:08,372 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g1 == 0 [2024-01-27 14:49:08,372 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] g2 == 1 [2024-01-27 14:49:08,373 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] (unsigned long )arg == 0UL [2024-01-27 14:49:08,373 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] g2 == 0 [2024-01-27 14:49:08,373 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] (unsigned long )arg == 0UL [2024-01-27 14:49:08,373 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g2 == 1 [2024-01-27 14:49:08,374 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] g1 == 0 [2024-01-27 14:49:08,374 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] (unsigned long )arg == 0UL [2024-01-27 14:49:08,374 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] g2 == 0 [2024-01-27 14:49:08,374 INFO L98 nessWitnessExtractor]: Location invariant before [L722-L722] g1 == 0 [2024-01-27 14:49:08,374 INFO L98 nessWitnessExtractor]: Location invariant before [L716-L716] g1 == 0 [2024-01-27 14:49:08,374 INFO L98 nessWitnessExtractor]: Location invariant before [L717-L717] g2 == 0 [2024-01-27 14:49:08,374 INFO L98 nessWitnessExtractor]: Location invariant before [L717-L717] g1 == 0 [2024-01-27 14:49:08,375 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-27 14:49:08,375 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] (unsigned long )arg == 0UL [2024-01-27 14:49:08,375 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g1 == 0 [2024-01-27 14:49:08,375 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g2 == 0 [2024-01-27 14:49:08,375 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g2 == 0 [2024-01-27 14:49:08,376 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] g1 == 0 [2024-01-27 14:49:08,377 INFO L98 nessWitnessExtractor]: Location invariant before [L726-L726] g2 == 0 [2024-01-27 14:49:08,377 INFO L98 nessWitnessExtractor]: Location invariant before [L726-L726] g1 == 0 [2024-01-27 14:49:08,377 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] g1 == 0 [2024-01-27 14:49:08,377 INFO L98 nessWitnessExtractor]: Location invariant before [L714-L714] g2 == 0 [2024-01-27 14:49:08,377 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] (unsigned long )arg == 0UL [2024-01-27 14:49:08,378 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] g1 == 0 [2024-01-27 14:49:08,378 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 14:49:08,378 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 14:49:08,378 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g2 == 0 [2024-01-27 14:49:08,378 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] g1 == 1 [2024-01-27 14:49:08,378 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] g1 == 0 [2024-01-27 14:49:08,379 INFO L98 nessWitnessExtractor]: Location invariant before [L715-L715] g2 == 0 [2024-01-27 14:49:08,379 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] g2 == 0 [2024-01-27 14:49:08,379 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] (unsigned long )arg == 0UL [2024-01-27 14:49:08,379 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] g2 == 0 [2024-01-27 14:49:08,379 INFO L98 nessWitnessExtractor]: Location invariant before [L723-L723] g1 == 0 [2024-01-27 14:49:08,379 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g1 == 0 [2024-01-27 14:49:08,380 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] g2 == 0 [2024-01-27 14:49:08,380 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] (unsigned long )arg == 0UL [2024-01-27 14:49:08,381 INFO L98 nessWitnessExtractor]: Location invariant before [L724-L724] g1 == 0 [2024-01-27 14:49:08,381 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] g1 == 0 [2024-01-27 14:49:08,381 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-27 14:49:08,381 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] g2 == 0 [2024-01-27 14:49:08,381 INFO L98 nessWitnessExtractor]: Location invariant before [L713-L713] g1 == 0 [2024-01-27 14:49:08,381 INFO L98 nessWitnessExtractor]: Location invariant before [L725-L725] g1 == 0 [2024-01-27 14:49:08,382 INFO L98 nessWitnessExtractor]: Location invariant before [L725-L725] g2 == 0 [2024-01-27 14:49:08,382 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] g2 == 0 [2024-01-27 14:49:08,382 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] (unsigned long )arg == 0UL [2024-01-27 14:49:08,382 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] g1 == 0 [2024-01-27 14:49:08,382 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 14:49:08,382 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g1 == 0 [2024-01-27 14:49:08,382 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] g2 == 0 [2024-01-27 14:49:08,383 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-27 14:49:08,383 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] g1 == 1 [2024-01-27 14:49:08,419 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:49:08,575 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 14:49:08,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:08,731 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:49:08,742 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 14:49:08,743 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 14:49:08,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:49:08,867 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:49:08,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08 WrapperNode [2024-01-27 14:49:08,868 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:49:08,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:08,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:49:08,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:49:08,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,904 INFO L138 Inliner]: procedures = 164, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 149 [2024-01-27 14:49:08,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:49:08,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:49:08,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:49:08,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:49:08,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,929 INFO L175 MemorySlicer]: Split 21 memory accesses to 6 slices as follows [2, 2, 5, 5, 5, 2]. 24 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 0, 5, 5, 5, 0]. The 2 writes are split as follows [0, 1, 0, 0, 0, 1]. [2024-01-27 14:49:08,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:49:08,956 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:49:08,956 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:49:08,956 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:49:08,957 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (1/1) ... [2024-01-27 14:49:08,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:49:08,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:49:08,986 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 14:49:09,035 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 14:49:09,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:49:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:49:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:49:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 14:49:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 14:49:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-27 14:49:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-01-27 14:49:09,054 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-01-27 14:49:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:49:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:49:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:49:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:49:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 14:49:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-27 14:49:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 14:49:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:49:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:49:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-27 14:49:09,055 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-27 14:49:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:49:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:49:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:49:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:49:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:49:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 14:49:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-27 14:49:09,056 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 14:49:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:49:09,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:49:09,060 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 14:49:09,207 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:49:09,209 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:49:09,618 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:49:09,618 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:49:09,777 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:49:09,777 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 14:49:09,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:09 BoogieIcfgContainer [2024-01-27 14:49:09,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:49:09,779 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:49:09,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:49:09,782 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:49:09,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:49:06" (1/4) ... [2024-01-27 14:49:09,782 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edcac99 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:49:09, skipping insertion in model container [2024-01-27 14:49:09,782 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:49:08" (2/4) ... [2024-01-27 14:49:09,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edcac99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:49:09, skipping insertion in model container [2024-01-27 14:49:09,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:49:08" (3/4) ... [2024-01-27 14:49:09,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edcac99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:49:09, skipping insertion in model container [2024-01-27 14:49:09,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:49:09" (4/4) ... [2024-01-27 14:49:09,784 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2024-01-27 14:49:09,798 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:49:09,798 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2024-01-27 14:49:09,798 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:49:09,886 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-27 14:49:09,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 217 transitions, 448 flow [2024-01-27 14:49:10,016 INFO L124 PetriNetUnfolderBase]: 4/215 cut-off events. [2024-01-27 14:49:10,017 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-27 14:49:10,023 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 14:49:10,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 217 transitions, 448 flow [2024-01-27 14:49:10,037 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 216 places, 213 transitions, 435 flow [2024-01-27 14:49:10,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:49:10,057 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;@5b928e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:49:10,057 INFO L358 AbstractCegarLoop]: Starting to check reachability of 114 error locations. [2024-01-27 14:49:10,059 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:49:10,059 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:49:10,059 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:49:10,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:10,060 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:49:10,060 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 14:49:10,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:10,064 INFO L85 PathProgramCache]: Analyzing trace with hash 21582, now seen corresponding path program 1 times [2024-01-27 14:49:10,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:10,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679345276] [2024-01-27 14:49:10,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:10,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:10,395 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 14:49:10,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:10,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679345276] [2024-01-27 14:49:10,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679345276] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:10,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:10,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:49:10,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112820561] [2024-01-27 14:49:10,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:10,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:10,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:10,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:10,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:10,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 217 [2024-01-27 14:49:10,507 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 213 transitions, 435 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 14:49:10,507 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:10,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 217 [2024-01-27 14:49:10,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:16,689 INFO L124 PetriNetUnfolderBase]: 22632/63092 cut-off events. [2024-01-27 14:49:16,690 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-01-27 14:49:16,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101430 conditions, 63092 events. 22632/63092 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 789458 event pairs, 15230 based on Foata normal form. 3534/55513 useless extension candidates. Maximal degree in co-relation 101282. Up to 28292 conditions per place. [2024-01-27 14:49:17,045 INFO L140 encePairwiseOnDemand]: 165/217 looper letters, 118 selfloop transitions, 22 changer transitions 0/255 dead transitions. [2024-01-27 14:49:17,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 255 transitions, 802 flow [2024-01-27 14:49:17,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:17,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:17,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2024-01-27 14:49:17,060 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8079877112135176 [2024-01-27 14:49:17,062 INFO L175 Difference]: Start difference. First operand has 216 places, 213 transitions, 435 flow. Second operand 3 states and 526 transitions. [2024-01-27 14:49:17,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 255 transitions, 802 flow [2024-01-27 14:49:17,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 255 transitions, 796 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 14:49:17,077 INFO L231 Difference]: Finished difference. Result has 212 places, 223 transitions, 618 flow [2024-01-27 14:49:17,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=618, PETRI_PLACES=212, PETRI_TRANSITIONS=223} [2024-01-27 14:49:17,082 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -4 predicate places. [2024-01-27 14:49:17,082 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 223 transitions, 618 flow [2024-01-27 14:49:17,082 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 14:49:17,082 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:17,083 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 14:49:17,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:49:17,083 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 14:49:17,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:17,084 INFO L85 PathProgramCache]: Analyzing trace with hash 669634, now seen corresponding path program 1 times [2024-01-27 14:49:17,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:17,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872800566] [2024-01-27 14:49:17,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:17,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:17,149 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 14:49:17,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:17,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872800566] [2024-01-27 14:49:17,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872800566] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:17,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:17,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:49:17,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732325685] [2024-01-27 14:49:17,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:17,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:49:17,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:17,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:49:17,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:49:17,193 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 217 [2024-01-27 14:49:17,194 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 223 transitions, 618 flow. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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 14:49:17,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:17,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 217 [2024-01-27 14:49:17,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:27,547 INFO L124 PetriNetUnfolderBase]: 41965/123251 cut-off events. [2024-01-27 14:49:27,548 INFO L125 PetriNetUnfolderBase]: For 13408/13786 co-relation queries the response was YES. [2024-01-27 14:49:27,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219385 conditions, 123251 events. 41965/123251 cut-off events. For 13408/13786 co-relation queries the response was YES. Maximal size of possible extension queue 2047. Compared 1721634 event pairs, 27171 based on Foata normal form. 3941/109409 useless extension candidates. Maximal degree in co-relation 149268. Up to 51430 conditions per place. [2024-01-27 14:49:28,334 INFO L140 encePairwiseOnDemand]: 177/217 looper letters, 114 selfloop transitions, 19 changer transitions 0/267 dead transitions. [2024-01-27 14:49:28,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 267 transitions, 989 flow [2024-01-27 14:49:28,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:49:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:49:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 526 transitions. [2024-01-27 14:49:28,337 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8079877112135176 [2024-01-27 14:49:28,338 INFO L175 Difference]: Start difference. First operand has 212 places, 223 transitions, 618 flow. Second operand 3 states and 526 transitions. [2024-01-27 14:49:28,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 267 transitions, 989 flow [2024-01-27 14:49:28,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 267 transitions, 939 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:28,842 INFO L231 Difference]: Finished difference. Result has 209 places, 233 transitions, 734 flow [2024-01-27 14:49:28,842 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=209, PETRI_TRANSITIONS=233} [2024-01-27 14:49:28,843 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -7 predicate places. [2024-01-27 14:49:28,843 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 233 transitions, 734 flow [2024-01-27 14:49:28,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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 14:49:28,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:28,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-27 14:49:28,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:49:28,844 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 14:49:28,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:28,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1524920711, now seen corresponding path program 1 times [2024-01-27 14:49:28,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:28,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441823766] [2024-01-27 14:49:28,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:28,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:28,976 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 14:49:28,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:28,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441823766] [2024-01-27 14:49:28,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441823766] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:28,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:28,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:28,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825535249] [2024-01-27 14:49:28,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:28,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:28,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:28,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:28,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:29,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 217 [2024-01-27 14:49:29,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 233 transitions, 734 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 14:49:29,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:29,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 217 [2024-01-27 14:49:29,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:36,099 INFO L124 PetriNetUnfolderBase]: 26074/94209 cut-off events. [2024-01-27 14:49:36,100 INFO L125 PetriNetUnfolderBase]: For 19092/19485 co-relation queries the response was YES. [2024-01-27 14:49:36,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168106 conditions, 94209 events. 26074/94209 cut-off events. For 19092/19485 co-relation queries the response was YES. Maximal size of possible extension queue 1726. Compared 1390686 event pairs, 8513 based on Foata normal form. 8892/90453 useless extension candidates. Maximal degree in co-relation 167916. Up to 32233 conditions per place. [2024-01-27 14:49:36,673 INFO L140 encePairwiseOnDemand]: 206/217 looper letters, 86 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2024-01-27 14:49:36,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 259 transitions, 990 flow [2024-01-27 14:49:36,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:36,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 706 transitions. [2024-01-27 14:49:36,676 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8133640552995391 [2024-01-27 14:49:36,676 INFO L175 Difference]: Start difference. First operand has 209 places, 233 transitions, 734 flow. Second operand 4 states and 706 transitions. [2024-01-27 14:49:36,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 259 transitions, 990 flow [2024-01-27 14:49:36,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 259 transitions, 944 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:36,713 INFO L231 Difference]: Finished difference. Result has 201 places, 224 transitions, 682 flow [2024-01-27 14:49:36,713 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=682, PETRI_PLACES=201, PETRI_TRANSITIONS=224} [2024-01-27 14:49:36,715 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -15 predicate places. [2024-01-27 14:49:36,718 INFO L495 AbstractCegarLoop]: Abstraction has has 201 places, 224 transitions, 682 flow [2024-01-27 14:49:36,718 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 14:49:36,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:36,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:36,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:49:36,720 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 14:49:36,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:36,721 INFO L85 PathProgramCache]: Analyzing trace with hash -872625099, now seen corresponding path program 1 times [2024-01-27 14:49:36,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:36,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010866938] [2024-01-27 14:49:36,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:36,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:36,836 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 14:49:36,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:36,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010866938] [2024-01-27 14:49:36,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010866938] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:36,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:36,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:36,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326169290] [2024-01-27 14:49:36,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:36,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:36,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:36,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:36,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:36,867 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 217 [2024-01-27 14:49:36,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 224 transitions, 682 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 14:49:36,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:36,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 217 [2024-01-27 14:49:36,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:39,504 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([736] L699-2-->L700: Formula: (and (= v_~g1~0_67 0) (= v_~g2~0_69 (+ v_~g2~0_70 1))) InVars {~g2~0=v_~g2~0_70, ~g1~0=v_~g1~0_67} OutVars{~g2~0=v_~g2~0_69, t2_funThread1of1ForFork1_#t~post11=|v_t2_funThread1of1ForFork1_#t~post11_1|, ~g1~0=v_~g1~0_67} AuxVars[] AssignedVars[~g2~0, t2_funThread1of1ForFork1_#t~post11][53], [211#L691-2true, Black: 223#true, 33#L719-2true, Black: 230#(= ~g2~0 0), 244#(and (= |t2_funThread1of1ForFork1_#in~arg.base| 0) (= t2_funThread1of1ForFork1_~arg.base 0) (= |t2_funThread1of1ForFork1_#in~arg.offset| 0) (= t2_funThread1of1ForFork1_~arg.offset 0)), 198#L700true, 238#(and (= t_funThread1of1ForFork0_~arg.base 0) (= |t_funThread1of1ForFork0_#in~arg.base| 0) (= |t_funThread1of1ForFork0_#in~arg.offset| 0) (= t_funThread1of1ForFork0_~arg.offset 0)), t2_funThread1of1ForFork1InUse]) [2024-01-27 14:49:39,505 INFO L294 olderBase$Statistics]: this new event has 66 ancestors and is not cut-off event [2024-01-27 14:49:39,505 INFO L297 olderBase$Statistics]: existing Event has 66 ancestors and is not cut-off event [2024-01-27 14:49:39,505 INFO L297 olderBase$Statistics]: existing Event has 66 ancestors and is not cut-off event [2024-01-27 14:49:39,505 INFO L297 olderBase$Statistics]: existing Event has 66 ancestors and is not cut-off event [2024-01-27 14:49:40,262 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([658] L721-1-->L19-13: Formula: (let ((.cse0 (= v_~g2~0_125 0))) (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_35| |v_ULTIMATE.start___VERIFIER_assert_~cond#1_45|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_35| (ite .cse0 1 0)) .cse0)) InVars {~g2~0=v_~g2~0_125} OutVars{~g2~0=v_~g2~0_125, ULTIMATE.start___VERIFIER_assert_~cond#1=|v_ULTIMATE.start___VERIFIER_assert_~cond#1_45|, ULTIMATE.start___VERIFIER_assert_#in~cond#1=|v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_35|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_#in~cond#1, ULTIMATE.start___VERIFIER_assert_~cond#1][184], [112#L19-13true, 4#L689-2true, Black: 223#true, 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)), 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, 196#L701-5true]) [2024-01-27 14:49:40,263 INFO L294 olderBase$Statistics]: this new event has 73 ancestors and is cut-off event [2024-01-27 14:49:40,263 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-01-27 14:49:40,263 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-01-27 14:49:40,263 INFO L297 olderBase$Statistics]: existing Event has 73 ancestors and is cut-off event [2024-01-27 14:49:41,255 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([658] L721-1-->L19-13: Formula: (let ((.cse0 (= v_~g2~0_125 0))) (and (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_35| |v_ULTIMATE.start___VERIFIER_assert_~cond#1_45|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_35| (ite .cse0 1 0)) .cse0)) InVars {~g2~0=v_~g2~0_125} OutVars{~g2~0=v_~g2~0_125, ULTIMATE.start___VERIFIER_assert_~cond#1=|v_ULTIMATE.start___VERIFIER_assert_~cond#1_45|, ULTIMATE.start___VERIFIER_assert_#in~cond#1=|v_ULTIMATE.start___VERIFIER_assert_#in~cond#1_35|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_#in~cond#1, ULTIMATE.start___VERIFIER_assert_~cond#1][184], [211#L691-2true, 112#L19-13true, Black: 223#true, Black: 228#true, 244#(and (= |t2_funThread1of1ForFork1_#in~arg.base| 0) (= t2_funThread1of1ForFork1_~arg.base 0) (= |t2_funThread1of1ForFork1_#in~arg.offset| 0) (= t2_funThread1of1ForFork1_~arg.offset 0)), 238#(and (= t_funThread1of1ForFork0_~arg.base 0) (= |t_funThread1of1ForFork0_#in~arg.base| 0) (= |t_funThread1of1ForFork0_#in~arg.offset| 0) (= t_funThread1of1ForFork0_~arg.offset 0)), t2_funThread1of1ForFork1InUse, 196#L701-5true]) [2024-01-27 14:49:41,255 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2024-01-27 14:49:41,255 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-01-27 14:49:41,255 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-01-27 14:49:41,255 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2024-01-27 14:49:43,582 INFO L124 PetriNetUnfolderBase]: 25786/90006 cut-off events. [2024-01-27 14:49:43,583 INFO L125 PetriNetUnfolderBase]: For 10803/11563 co-relation queries the response was YES. [2024-01-27 14:49:43,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157898 conditions, 90006 events. 25786/90006 cut-off events. For 10803/11563 co-relation queries the response was YES. Maximal size of possible extension queue 1648. Compared 1306698 event pairs, 8553 based on Foata normal form. 8954/87488 useless extension candidates. Maximal degree in co-relation 157880. Up to 32426 conditions per place. [2024-01-27 14:49:44,044 INFO L140 encePairwiseOnDemand]: 206/217 looper letters, 95 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2024-01-27 14:49:44,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 259 transitions, 967 flow [2024-01-27 14:49:44,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:44,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:44,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 715 transitions. [2024-01-27 14:49:44,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8237327188940092 [2024-01-27 14:49:44,047 INFO L175 Difference]: Start difference. First operand has 201 places, 224 transitions, 682 flow. Second operand 4 states and 715 transitions. [2024-01-27 14:49:44,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 259 transitions, 967 flow [2024-01-27 14:49:44,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 259 transitions, 964 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:44,053 INFO L231 Difference]: Finished difference. Result has 193 places, 215 transitions, 665 flow [2024-01-27 14:49:44,054 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=661, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=665, PETRI_PLACES=193, PETRI_TRANSITIONS=215} [2024-01-27 14:49:44,055 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -23 predicate places. [2024-01-27 14:49:44,056 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 215 transitions, 665 flow [2024-01-27 14:49:44,056 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 14:49:44,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:44,056 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:44,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 14:49:44,057 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 14:49:44,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:44,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1902230369, now seen corresponding path program 1 times [2024-01-27 14:49:44,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:44,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143777710] [2024-01-27 14:49:44,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:44,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:44,144 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 14:49:44,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:44,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143777710] [2024-01-27 14:49:44,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143777710] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:44,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:44,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:49:44,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091640824] [2024-01-27 14:49:44,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:44,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:44,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:44,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:44,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:44,187 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 217 [2024-01-27 14:49:44,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 215 transitions, 665 flow. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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 14:49:44,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:44,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 217 [2024-01-27 14:49:44,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:50,248 INFO L124 PetriNetUnfolderBase]: 29675/75395 cut-off events. [2024-01-27 14:49:50,248 INFO L125 PetriNetUnfolderBase]: For 14401/16810 co-relation queries the response was YES. [2024-01-27 14:49:50,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154735 conditions, 75395 events. 29675/75395 cut-off events. For 14401/16810 co-relation queries the response was YES. Maximal size of possible extension queue 1284. Compared 918940 event pairs, 22548 based on Foata normal form. 4679/74959 useless extension candidates. Maximal degree in co-relation 154717. Up to 34632 conditions per place. [2024-01-27 14:49:50,591 INFO L140 encePairwiseOnDemand]: 192/217 looper letters, 120 selfloop transitions, 3 changer transitions 0/223 dead transitions. [2024-01-27 14:49:50,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 223 transitions, 897 flow [2024-01-27 14:49:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:49:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:49:50,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 597 transitions. [2024-01-27 14:49:50,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6877880184331797 [2024-01-27 14:49:50,593 INFO L175 Difference]: Start difference. First operand has 193 places, 215 transitions, 665 flow. Second operand 4 states and 597 transitions. [2024-01-27 14:49:50,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 223 transitions, 897 flow [2024-01-27 14:49:50,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 223 transitions, 892 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:49:50,598 INFO L231 Difference]: Finished difference. Result has 190 places, 191 transitions, 576 flow [2024-01-27 14:49:50,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=576, PETRI_PLACES=190, PETRI_TRANSITIONS=191} [2024-01-27 14:49:50,600 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -26 predicate places. [2024-01-27 14:49:50,600 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 191 transitions, 576 flow [2024-01-27 14:49:50,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 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 14:49:50,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:50,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:50,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 14:49:50,601 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 111 more)] === [2024-01-27 14:49:50,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:50,602 INFO L85 PathProgramCache]: Analyzing trace with hash 830489441, now seen corresponding path program 1 times [2024-01-27 14:49:50,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:50,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291701558] [2024-01-27 14:49:50,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:50,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:50,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:50,700 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 14:49:50,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:50,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291701558] [2024-01-27 14:49:50,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291701558] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:50,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:50,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:49:50,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941594956] [2024-01-27 14:49:50,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:50,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:50,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:50,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:50,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:50,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 217 [2024-01-27 14:49:50,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 191 transitions, 576 flow. Second operand has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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 14:49:50,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:50,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 217 [2024-01-27 14:49:50,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:49:57,874 INFO L124 PetriNetUnfolderBase]: 33049/79110 cut-off events. [2024-01-27 14:49:57,874 INFO L125 PetriNetUnfolderBase]: For 18720/21177 co-relation queries the response was YES. [2024-01-27 14:49:58,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167774 conditions, 79110 events. 33049/79110 cut-off events. For 18720/21177 co-relation queries the response was YES. Maximal size of possible extension queue 1352. Compared 939004 event pairs, 21316 based on Foata normal form. 489/74780 useless extension candidates. Maximal degree in co-relation 167755. Up to 32097 conditions per place. [2024-01-27 14:49:58,253 INFO L140 encePairwiseOnDemand]: 201/217 looper letters, 151 selfloop transitions, 23 changer transitions 0/263 dead transitions. [2024-01-27 14:49:58,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 263 transitions, 1114 flow [2024-01-27 14:49:58,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 14:49:58,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 14:49:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 723 transitions. [2024-01-27 14:49:58,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6663594470046083 [2024-01-27 14:49:58,270 INFO L175 Difference]: Start difference. First operand has 190 places, 191 transitions, 576 flow. Second operand 5 states and 723 transitions. [2024-01-27 14:49:58,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 263 transitions, 1114 flow [2024-01-27 14:49:58,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 263 transitions, 1104 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 14:49:58,611 INFO L231 Difference]: Finished difference. Result has 189 places, 197 transitions, 698 flow [2024-01-27 14:49:58,611 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=217, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=698, PETRI_PLACES=189, PETRI_TRANSITIONS=197} [2024-01-27 14:49:58,613 INFO L281 CegarLoopForPetriNet]: 216 programPoint places, -27 predicate places. [2024-01-27 14:49:58,614 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 197 transitions, 698 flow [2024-01-27 14:49:58,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 112.0) internal successors, (448), 4 states have internal predecessors, (448), 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 14:49:58,614 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:49:58,614 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:49:58,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 14:49:58,614 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [t2_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT, t2_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 111 more)] === [2024-01-27 14:49:58,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:49:58,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1018967461, now seen corresponding path program 1 times [2024-01-27 14:49:58,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:49:58,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562359705] [2024-01-27 14:49:58,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:49:58,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:49:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:49:58,676 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 14:49:58,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:49:58,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562359705] [2024-01-27 14:49:58,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562359705] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:49:58,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:49:58,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 14:49:58,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287227747] [2024-01-27 14:49:58,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:49:58,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:49:58,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:49:58,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:49:58,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:49:58,722 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 217 [2024-01-27 14:49:58,722 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 197 transitions, 698 flow. Second operand has 4 states, 4 states have (on average 124.75) internal successors, (499), 4 states have internal predecessors, (499), 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 14:49:58,722 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:49:58,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 217 [2024-01-27 14:49:58,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand