./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_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_18-first-reads_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_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-8857f20-m [2024-01-29 22:55:08,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:55:08,180 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:55:08,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:55:08,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:55:08,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:55:08,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:55:08,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:55:08,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:55:08,210 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:55:08,210 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:55:08,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:55:08,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:55:08,212 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:55:08,213 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:55:08,213 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:55:08,213 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:55:08,213 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:55:08,214 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:55:08,214 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:55:08,214 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:55:08,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:55:08,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:55:08,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:55:08,215 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:55:08,215 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:55:08,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:55:08,215 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:55:08,215 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:55:08,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:55:08,216 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:55:08,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:55:08,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:08,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:55:08,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:55:08,216 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:55:08,216 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:55:08,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:55:08,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:55:08,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:55:08,217 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:55:08,217 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:55:08,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:55:08,217 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:55:08,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:55:08,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:55:08,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:55:08,433 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:55:08,433 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:55:08,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2024-01-29 22:55:09,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:55:09,624 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:55:09,625 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i [2024-01-29 22:55:09,634 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acc008d15/b7f1a2136b2942ca8816e66ed76e849a/FLAG60195a233 [2024-01-29 22:55:09,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acc008d15/b7f1a2136b2942ca8816e66ed76e849a [2024-01-29 22:55:09,645 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:55:09,645 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:55:09,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_18-first-reads_true.yml/witness.yml [2024-01-29 22:55:09,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:55:09,708 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:55:09,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:09,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:55:09,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:55:09,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:09" (1/2) ... [2024-01-29 22:55:09,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5aa6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:09, skipping insertion in model container [2024-01-29 22:55:09,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:55:09" (1/2) ... [2024-01-29 22:55:09,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7ed68d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:55:09, skipping insertion in model container [2024-01-29 22:55:09,715 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:09" (2/2) ... [2024-01-29 22:55:09,715 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5aa6d3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:09, skipping insertion in model container [2024-01-29 22:55:09,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:09" (2/2) ... [2024-01-29 22:55:09,716 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:55:09,749 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:55:09,751 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] glob1 == 0 [2024-01-29 22:55:09,751 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] ((-42LL + (long long )glob1) + (long long )t >= 0LL) && ((42LL + (long long )glob1) - (long long )t >= 0LL) [2024-01-29 22:55:09,751 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (((-42LL + (long long )glob1) + (long long )t >= 0LL) && ((42LL + (long long )glob1) - (long long )t >= 0LL)) && (t == 42) [2024-01-29 22:55:09,751 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (((-42LL + (long long )glob1) + (long long )t >= 0LL) && ((42LL + (long long )glob1) - (long long )t >= 0LL)) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:09,751 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (-42LL + (long long )glob1) + (long long )t >= 0LL [2024-01-29 22:55:09,752 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] ((-42LL + (long long )glob1) + (long long )t >= 0LL) && ((-41LL - (long long )glob1) + (long long )t >= 0LL) [2024-01-29 22:55:09,752 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (((-42LL + (long long )glob1) + (long long )t >= 0LL) && ((42LL + (long long )glob1) - (long long )t >= 0LL)) && ((43LL - (long long )glob1) - (long long )t >= 0LL) [2024-01-29 22:55:09,752 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (((-42LL + (long long )glob1) + (long long )t >= 0LL) && ((42LL + (long long )glob1) - (long long )t >= 0LL)) && (glob1 == 0) [2024-01-29 22:55:09,752 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L689] glob1 == 0 [2024-01-29 22:55:09,752 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L689] (glob1 == 0) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:09,752 INFO L98 nessWitnessExtractor]: Location invariant before [L685-L685] (unsigned long )arg == 0UL [2024-01-29 22:55:09,752 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] glob1 == 0 [2024-01-29 22:55:09,753 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] ((0 <= t) && (t <= 1)) && (t == 0 || t == 1) [2024-01-29 22:55:09,753 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (0 <= t) && (t <= 1) [2024-01-29 22:55:09,753 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] 0 <= t [2024-01-29 22:55:09,753 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] ((0 <= t) && (t <= 1)) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:09,753 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] ((0 <= glob1) && (0 <= t)) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:09,753 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (((0 <= glob1) && (0 <= t)) && ((unsigned long )arg == 0UL)) && (t == 0 || t == 1) [2024-01-29 22:55:09,753 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (0 <= glob1) && (0 <= t) [2024-01-29 22:55:09,753 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] 0 <= glob1 [2024-01-29 22:55:09,754 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] ((0 <= glob1) && (0 <= t)) && (t <= 1) [2024-01-29 22:55:09,754 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (((0 <= glob1) && (0 <= t)) && ((unsigned long )arg == 0UL)) && (glob1 == 0 || glob1 == 1) [2024-01-29 22:55:09,754 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] ((0 <= glob1) && (0 <= t)) && (glob1 <= 1) [2024-01-29 22:55:09,754 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 0 [2024-01-29 22:55:09,754 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-29 22:55:09,754 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (0 <= t) && (t <= 1) [2024-01-29 22:55:09,755 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] ((0 <= t) && (t <= 1)) && (t == 0 || t == 1) [2024-01-29 22:55:09,755 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] ((0 <= t) && (t <= 1)) && (glob1 == 0) [2024-01-29 22:55:09,755 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] ((0 <= t) && (t <= 1)) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:09,755 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] 0 <= t [2024-01-29 22:55:09,755 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] glob1 == 0 [2024-01-29 22:55:09,755 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] (glob1 == 0) && (glob1 == 0) [2024-01-29 22:55:09,755 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] glob1 == 0 [2024-01-29 22:55:09,756 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] ((0 <= glob1) && (glob1 <= 1)) && ((unsigned long )arg == 0UL) [2024-01-29 22:55:09,756 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (((0 <= glob1) && (glob1 <= 1)) && ((unsigned long )arg == 0UL)) && (glob1 == 0 || glob1 == 1) [2024-01-29 22:55:09,756 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (0 <= glob1) && (glob1 <= 1) [2024-01-29 22:55:09,756 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] 0 <= glob1 [2024-01-29 22:55:09,782 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:55:09,938 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2024-01-29 22:55:10,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:10,083 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:55:10,093 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2024-01-29 22:55:10,094 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 [2024-01-29 22:55:10,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:55:10,189 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:55:10,190 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10 WrapperNode [2024-01-29 22:55:10,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:55:10,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:10,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:55:10,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:55:10,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,206 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,228 INFO L138 Inliner]: procedures = 164, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2024-01-29 22:55:10,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:55:10,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:55:10,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:55:10,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:55:10,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,239 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,255 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 5, 2]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-01-29 22:55:10,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:55:10,267 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:55:10,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:55:10,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:55:10,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (1/1) ... [2024-01-29 22:55:10,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:55:10,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:55:10,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:55:10,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:55:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:55:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:55:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:55:10,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:55:10,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:55:10,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:55:10,339 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 22:55:10,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:55:10,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:55:10,339 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-29 22:55:10,339 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-29 22:55:10,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:55:10,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:55:10,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:55:10,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:55:10,340 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 22:55:10,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:55:10,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:55:10,341 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:55:10,428 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:55:10,431 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:55:10,651 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:55:10,651 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:55:10,706 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:55:10,706 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 22:55:10,707 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:10 BoogieIcfgContainer [2024-01-29 22:55:10,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:55:10,708 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:55:10,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:55:10,714 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:55:10,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:55:09" (1/4) ... [2024-01-29 22:55:10,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a945b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:55:10, skipping insertion in model container [2024-01-29 22:55:10,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:55:09" (2/4) ... [2024-01-29 22:55:10,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a945b1d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:55:10, skipping insertion in model container [2024-01-29 22:55:10,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:55:10" (3/4) ... [2024-01-29 22:55:10,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a945b1d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:55:10, skipping insertion in model container [2024-01-29 22:55:10,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:55:10" (4/4) ... [2024-01-29 22:55:10,719 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2024-01-29 22:55:10,731 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:55:10,731 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 37 error locations. [2024-01-29 22:55:10,731 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:55:10,820 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-29 22:55:10,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 97 transitions, 201 flow [2024-01-29 22:55:10,903 INFO L124 PetriNetUnfolderBase]: 3/96 cut-off events. [2024-01-29 22:55:10,904 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 22:55:10,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 96 events. 3/96 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2024-01-29 22:55:10,907 INFO L82 GeneralOperation]: Start removeDead. Operand has 98 places, 97 transitions, 201 flow [2024-01-29 22:55:10,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 94 transitions, 191 flow [2024-01-29 22:55:10,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:55:10,923 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;@6ce46f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:55:10,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2024-01-29 22:55:10,928 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:55:10,928 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:55:10,928 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:10,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:10,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:55:10,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:10,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:10,934 INFO L85 PathProgramCache]: Analyzing trace with hash 9385, now seen corresponding path program 1 times [2024-01-29 22:55:10,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:10,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720347664] [2024-01-29 22:55:10,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:10,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:11,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:11,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:11,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720347664] [2024-01-29 22:55:11,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720347664] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:11,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:11,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:55:11,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347658441] [2024-01-29 22:55:11,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:11,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:11,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:11,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:11,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:11,250 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 97 [2024-01-29 22:55:11,252 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 94 transitions, 191 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:11,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:11,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 97 [2024-01-29 22:55:11,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:11,402 INFO L124 PetriNetUnfolderBase]: 120/732 cut-off events. [2024-01-29 22:55:11,402 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:55:11,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 732 events. 120/732 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4880 event pairs, 78 based on Foata normal form. 44/573 useless extension candidates. Maximal degree in co-relation 1007. Up to 205 conditions per place. [2024-01-29 22:55:11,411 INFO L140 encePairwiseOnDemand]: 82/97 looper letters, 32 selfloop transitions, 5 changer transitions 0/98 dead transitions. [2024-01-29 22:55:11,413 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 98 transitions, 273 flow [2024-01-29 22:55:11,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:11,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2024-01-29 22:55:11,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8041237113402062 [2024-01-29 22:55:11,427 INFO L175 Difference]: Start difference. First operand has 95 places, 94 transitions, 191 flow. Second operand 3 states and 234 transitions. [2024-01-29 22:55:11,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 98 transitions, 273 flow [2024-01-29 22:55:11,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 98 transitions, 272 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:55:11,435 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 222 flow [2024-01-29 22:55:11,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2024-01-29 22:55:11,439 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, 0 predicate places. [2024-01-29 22:55:11,439 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 222 flow [2024-01-29 22:55:11,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:11,440 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:11,440 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 22:55:11,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:55:11,441 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:11,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:11,443 INFO L85 PathProgramCache]: Analyzing trace with hash 9027965, now seen corresponding path program 1 times [2024-01-29 22:55:11,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:11,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542110676] [2024-01-29 22:55:11,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:11,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:11,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:11,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:11,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542110676] [2024-01-29 22:55:11,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542110676] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:11,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:11,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:11,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217759367] [2024-01-29 22:55:11,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:11,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:11,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:11,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:11,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:11,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 97 [2024-01-29 22:55:11,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:11,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:11,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 97 [2024-01-29 22:55:11,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:11,828 INFO L124 PetriNetUnfolderBase]: 138/717 cut-off events. [2024-01-29 22:55:11,828 INFO L125 PetriNetUnfolderBase]: For 119/141 co-relation queries the response was YES. [2024-01-29 22:55:11,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1190 conditions, 717 events. 138/717 cut-off events. For 119/141 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4647 event pairs, 68 based on Foata normal form. 0/540 useless extension candidates. Maximal degree in co-relation 1170. Up to 178 conditions per place. [2024-01-29 22:55:11,834 INFO L140 encePairwiseOnDemand]: 87/97 looper letters, 43 selfloop transitions, 12 changer transitions 1/111 dead transitions. [2024-01-29 22:55:11,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 111 transitions, 388 flow [2024-01-29 22:55:11,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:55:11,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:55:11,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 349 transitions. [2024-01-29 22:55:11,838 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7195876288659794 [2024-01-29 22:55:11,838 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 222 flow. Second operand 5 states and 349 transitions. [2024-01-29 22:55:11,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 111 transitions, 388 flow [2024-01-29 22:55:11,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 111 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:11,856 INFO L231 Difference]: Finished difference. Result has 93 places, 91 transitions, 238 flow [2024-01-29 22:55:11,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=238, PETRI_PLACES=93, PETRI_TRANSITIONS=91} [2024-01-29 22:55:11,857 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -2 predicate places. [2024-01-29 22:55:11,858 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 91 transitions, 238 flow [2024-01-29 22:55:11,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:11,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:11,858 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:11,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:55:11,859 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:11,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:11,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1052852125, now seen corresponding path program 1 times [2024-01-29 22:55:11,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:11,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603010478] [2024-01-29 22:55:11,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:11,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:11,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:11,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:11,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603010478] [2024-01-29 22:55:11,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603010478] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:11,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:11,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:11,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260538698] [2024-01-29 22:55:11,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:11,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:11,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:11,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:11,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:11,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 97 [2024-01-29 22:55:11,985 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 91 transitions, 238 flow. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:11,985 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:11,985 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 97 [2024-01-29 22:55:11,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:12,069 INFO L124 PetriNetUnfolderBase]: 75/770 cut-off events. [2024-01-29 22:55:12,069 INFO L125 PetriNetUnfolderBase]: For 112/113 co-relation queries the response was YES. [2024-01-29 22:55:12,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1075 conditions, 770 events. 75/770 cut-off events. For 112/113 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 5532 event pairs, 7 based on Foata normal form. 7/553 useless extension candidates. Maximal degree in co-relation 1054. Up to 149 conditions per place. [2024-01-29 22:55:12,073 INFO L140 encePairwiseOnDemand]: 93/97 looper letters, 28 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-01-29 22:55:12,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 95 transitions, 312 flow [2024-01-29 22:55:12,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:12,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:12,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 315 transitions. [2024-01-29 22:55:12,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8118556701030928 [2024-01-29 22:55:12,074 INFO L175 Difference]: Start difference. First operand has 93 places, 91 transitions, 238 flow. Second operand 4 states and 315 transitions. [2024-01-29 22:55:12,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 95 transitions, 312 flow [2024-01-29 22:55:12,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 95 transitions, 312 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 22:55:12,079 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 238 flow [2024-01-29 22:55:12,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=234, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2024-01-29 22:55:12,080 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -1 predicate places. [2024-01-29 22:55:12,080 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 238 flow [2024-01-29 22:55:12,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:12,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:12,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:12,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 22:55:12,081 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:12,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:12,082 INFO L85 PathProgramCache]: Analyzing trace with hash 2001900704, now seen corresponding path program 1 times [2024-01-29 22:55:12,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:12,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840488268] [2024-01-29 22:55:12,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:12,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:12,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:12,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:12,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840488268] [2024-01-29 22:55:12,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840488268] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:12,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:12,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:12,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570844302] [2024-01-29 22:55:12,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:12,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:12,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:12,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:12,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:12,235 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 97 [2024-01-29 22:55:12,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 89 transitions, 238 flow. Second operand has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:12,235 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:12,235 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 97 [2024-01-29 22:55:12,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:12,353 INFO L124 PetriNetUnfolderBase]: 247/1044 cut-off events. [2024-01-29 22:55:12,353 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2024-01-29 22:55:12,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1874 conditions, 1044 events. 247/1044 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 7129 event pairs, 25 based on Foata normal form. 0/867 useless extension candidates. Maximal degree in co-relation 1851. Up to 300 conditions per place. [2024-01-29 22:55:12,364 INFO L140 encePairwiseOnDemand]: 84/97 looper letters, 53 selfloop transitions, 13 changer transitions 0/110 dead transitions. [2024-01-29 22:55:12,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 110 transitions, 422 flow [2024-01-29 22:55:12,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:12,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:12,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 263 transitions. [2024-01-29 22:55:12,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6778350515463918 [2024-01-29 22:55:12,365 INFO L175 Difference]: Start difference. First operand has 94 places, 89 transitions, 238 flow. Second operand 4 states and 263 transitions. [2024-01-29 22:55:12,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 110 transitions, 422 flow [2024-01-29 22:55:12,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 110 transitions, 419 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:12,368 INFO L231 Difference]: Finished difference. Result has 96 places, 93 transitions, 304 flow [2024-01-29 22:55:12,368 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=304, PETRI_PLACES=96, PETRI_TRANSITIONS=93} [2024-01-29 22:55:12,369 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, 1 predicate places. [2024-01-29 22:55:12,370 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 93 transitions, 304 flow [2024-01-29 22:55:12,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.5) internal successors, (206), 4 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:12,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:12,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:12,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 22:55:12,373 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:12,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:12,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1291645849, now seen corresponding path program 1 times [2024-01-29 22:55:12,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:12,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323184013] [2024-01-29 22:55:12,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:12,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:12,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:12,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:12,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323184013] [2024-01-29 22:55:12,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323184013] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:12,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:12,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:12,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104117863] [2024-01-29 22:55:12,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:12,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:12,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:12,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:12,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:12,553 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 97 [2024-01-29 22:55:12,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 93 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:12,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:12,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 97 [2024-01-29 22:55:12,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:12,661 INFO L124 PetriNetUnfolderBase]: 296/1012 cut-off events. [2024-01-29 22:55:12,662 INFO L125 PetriNetUnfolderBase]: For 513/526 co-relation queries the response was YES. [2024-01-29 22:55:12,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2176 conditions, 1012 events. 296/1012 cut-off events. For 513/526 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 6433 event pairs, 172 based on Foata normal form. 24/1013 useless extension candidates. Maximal degree in co-relation 2151. Up to 453 conditions per place. [2024-01-29 22:55:12,666 INFO L140 encePairwiseOnDemand]: 85/97 looper letters, 61 selfloop transitions, 8 changer transitions 0/103 dead transitions. [2024-01-29 22:55:12,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 103 transitions, 474 flow [2024-01-29 22:55:12,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:12,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:12,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 230 transitions. [2024-01-29 22:55:12,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5927835051546392 [2024-01-29 22:55:12,667 INFO L175 Difference]: Start difference. First operand has 96 places, 93 transitions, 304 flow. Second operand 4 states and 230 transitions. [2024-01-29 22:55:12,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 103 transitions, 474 flow [2024-01-29 22:55:12,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 103 transitions, 457 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:12,669 INFO L231 Difference]: Finished difference. Result has 91 places, 87 transitions, 291 flow [2024-01-29 22:55:12,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=291, PETRI_PLACES=91, PETRI_TRANSITIONS=87} [2024-01-29 22:55:12,670 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -4 predicate places. [2024-01-29 22:55:12,670 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 87 transitions, 291 flow [2024-01-29 22:55:12,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:12,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:12,671 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:12,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 22:55:12,671 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:12,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:12,671 INFO L85 PathProgramCache]: Analyzing trace with hash 687049711, now seen corresponding path program 1 times [2024-01-29 22:55:12,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:12,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732034189] [2024-01-29 22:55:12,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:12,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:12,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:12,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:12,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732034189] [2024-01-29 22:55:12,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732034189] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:12,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:12,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:55:12,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005282013] [2024-01-29 22:55:12,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:12,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-01-29 22:55:12,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:12,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-01-29 22:55:12,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-01-29 22:55:12,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 97 [2024-01-29 22:55:12,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 87 transitions, 291 flow. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:12,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:12,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 97 [2024-01-29 22:55:12,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:13,073 INFO L124 PetriNetUnfolderBase]: 443/1256 cut-off events. [2024-01-29 22:55:13,073 INFO L125 PetriNetUnfolderBase]: For 720/732 co-relation queries the response was YES. [2024-01-29 22:55:13,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2863 conditions, 1256 events. 443/1256 cut-off events. For 720/732 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 7854 event pairs, 35 based on Foata normal form. 8/1257 useless extension candidates. Maximal degree in co-relation 2837. Up to 336 conditions per place. [2024-01-29 22:55:13,079 INFO L140 encePairwiseOnDemand]: 82/97 looper letters, 91 selfloop transitions, 18 changer transitions 0/130 dead transitions. [2024-01-29 22:55:13,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 130 transitions, 631 flow [2024-01-29 22:55:13,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 22:55:13,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 22:55:13,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 264 transitions. [2024-01-29 22:55:13,080 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4536082474226804 [2024-01-29 22:55:13,080 INFO L175 Difference]: Start difference. First operand has 91 places, 87 transitions, 291 flow. Second operand 6 states and 264 transitions. [2024-01-29 22:55:13,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 130 transitions, 631 flow [2024-01-29 22:55:13,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 130 transitions, 615 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:13,084 INFO L231 Difference]: Finished difference. Result has 93 places, 90 transitions, 338 flow [2024-01-29 22:55:13,084 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=93, PETRI_TRANSITIONS=90} [2024-01-29 22:55:13,085 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -2 predicate places. [2024-01-29 22:55:13,085 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 90 transitions, 338 flow [2024-01-29 22:55:13,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:13,085 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:13,085 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:13,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 22:55:13,086 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:13,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:13,086 INFO L85 PathProgramCache]: Analyzing trace with hash 717587472, now seen corresponding path program 1 times [2024-01-29 22:55:13,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:13,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495617511] [2024-01-29 22:55:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:13,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:13,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:13,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:13,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495617511] [2024-01-29 22:55:13,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495617511] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:13,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:13,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:13,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570487050] [2024-01-29 22:55:13,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:13,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:13,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:13,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:13,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:13,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 97 [2024-01-29 22:55:13,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 90 transitions, 338 flow. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:13,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:13,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 97 [2024-01-29 22:55:13,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:13,318 INFO L124 PetriNetUnfolderBase]: 307/1133 cut-off events. [2024-01-29 22:55:13,318 INFO L125 PetriNetUnfolderBase]: For 735/760 co-relation queries the response was YES. [2024-01-29 22:55:13,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2481 conditions, 1133 events. 307/1133 cut-off events. For 735/760 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 7502 event pairs, 176 based on Foata normal form. 64/1125 useless extension candidates. Maximal degree in co-relation 2454. Up to 486 conditions per place. [2024-01-29 22:55:13,323 INFO L140 encePairwiseOnDemand]: 81/97 looper letters, 62 selfloop transitions, 9 changer transitions 1/108 dead transitions. [2024-01-29 22:55:13,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 108 transitions, 530 flow [2024-01-29 22:55:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:13,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 261 transitions. [2024-01-29 22:55:13,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6726804123711341 [2024-01-29 22:55:13,324 INFO L175 Difference]: Start difference. First operand has 93 places, 90 transitions, 338 flow. Second operand 4 states and 261 transitions. [2024-01-29 22:55:13,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 108 transitions, 530 flow [2024-01-29 22:55:13,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 108 transitions, 511 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:13,327 INFO L231 Difference]: Finished difference. Result has 94 places, 90 transitions, 359 flow [2024-01-29 22:55:13,328 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=359, PETRI_PLACES=94, PETRI_TRANSITIONS=90} [2024-01-29 22:55:13,328 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -1 predicate places. [2024-01-29 22:55:13,328 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 90 transitions, 359 flow [2024-01-29 22:55:13,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:13,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:13,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:13,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 22:55:13,329 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:13,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:13,329 INFO L85 PathProgramCache]: Analyzing trace with hash 770375534, now seen corresponding path program 1 times [2024-01-29 22:55:13,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:13,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93462340] [2024-01-29 22:55:13,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:13,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:13,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:13,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93462340] [2024-01-29 22:55:13,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93462340] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:13,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:13,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:13,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11622691] [2024-01-29 22:55:13,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:13,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:55:13,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:13,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:55:13,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:55:13,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 97 [2024-01-29 22:55:13,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 90 transitions, 359 flow. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:13,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:13,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 97 [2024-01-29 22:55:13,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:13,702 INFO L124 PetriNetUnfolderBase]: 494/1385 cut-off events. [2024-01-29 22:55:13,703 INFO L125 PetriNetUnfolderBase]: For 1045/1059 co-relation queries the response was YES. [2024-01-29 22:55:13,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3468 conditions, 1385 events. 494/1385 cut-off events. For 1045/1059 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8686 event pairs, 37 based on Foata normal form. 40/1401 useless extension candidates. Maximal degree in co-relation 3440. Up to 547 conditions per place. [2024-01-29 22:55:13,709 INFO L140 encePairwiseOnDemand]: 82/97 looper letters, 82 selfloop transitions, 11 changer transitions 19/130 dead transitions. [2024-01-29 22:55:13,709 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 130 transitions, 707 flow [2024-01-29 22:55:13,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:55:13,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:55:13,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 258 transitions. [2024-01-29 22:55:13,711 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5319587628865979 [2024-01-29 22:55:13,711 INFO L175 Difference]: Start difference. First operand has 94 places, 90 transitions, 359 flow. Second operand 5 states and 258 transitions. [2024-01-29 22:55:13,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 130 transitions, 707 flow [2024-01-29 22:55:13,714 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 130 transitions, 691 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:55:13,716 INFO L231 Difference]: Finished difference. Result has 97 places, 87 transitions, 351 flow [2024-01-29 22:55:13,716 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=351, PETRI_PLACES=97, PETRI_TRANSITIONS=87} [2024-01-29 22:55:13,718 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, 2 predicate places. [2024-01-29 22:55:13,718 INFO L495 AbstractCegarLoop]: Abstraction has has 97 places, 87 transitions, 351 flow [2024-01-29 22:55:13,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:13,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:13,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:13,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 22:55:13,719 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:13,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:13,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1915814889, now seen corresponding path program 1 times [2024-01-29 22:55:13,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:13,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559904723] [2024-01-29 22:55:13,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:13,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:13,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:13,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:13,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:13,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559904723] [2024-01-29 22:55:13,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559904723] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:13,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:13,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:55:13,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597122142] [2024-01-29 22:55:13,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:13,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:13,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:13,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:13,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:13,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 97 [2024-01-29 22:55:13,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 87 transitions, 351 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:13,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:13,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 97 [2024-01-29 22:55:13,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:13,853 INFO L124 PetriNetUnfolderBase]: 73/487 cut-off events. [2024-01-29 22:55:13,853 INFO L125 PetriNetUnfolderBase]: For 430/442 co-relation queries the response was YES. [2024-01-29 22:55:13,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1021 conditions, 487 events. 73/487 cut-off events. For 430/442 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2669 event pairs, 62 based on Foata normal form. 38/507 useless extension candidates. Maximal degree in co-relation 992. Up to 156 conditions per place. [2024-01-29 22:55:13,855 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 26 selfloop transitions, 4 changer transitions 0/79 dead transitions. [2024-01-29 22:55:13,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 79 transitions, 338 flow [2024-01-29 22:55:13,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:13,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:13,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 234 transitions. [2024-01-29 22:55:13,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8041237113402062 [2024-01-29 22:55:13,856 INFO L175 Difference]: Start difference. First operand has 97 places, 87 transitions, 351 flow. Second operand 3 states and 234 transitions. [2024-01-29 22:55:13,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 79 transitions, 338 flow [2024-01-29 22:55:13,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 79 transitions, 278 flow, removed 19 selfloop flow, removed 8 redundant places. [2024-01-29 22:55:13,860 INFO L231 Difference]: Finished difference. Result has 86 places, 75 transitions, 218 flow [2024-01-29 22:55:13,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=86, PETRI_TRANSITIONS=75} [2024-01-29 22:55:13,861 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -9 predicate places. [2024-01-29 22:55:13,861 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 75 transitions, 218 flow [2024-01-29 22:55:13,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:13,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:13,862 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:13,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 22:55:13,862 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:13,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:13,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1442873371, now seen corresponding path program 1 times [2024-01-29 22:55:13,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:13,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235348016] [2024-01-29 22:55:13,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:13,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:13,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:13,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235348016] [2024-01-29 22:55:13,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235348016] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:13,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:13,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:13,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284524119] [2024-01-29 22:55:13,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:13,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:13,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:13,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:13,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:14,014 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 97 [2024-01-29 22:55:14,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 75 transitions, 218 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:14,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:14,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 97 [2024-01-29 22:55:14,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:14,083 INFO L124 PetriNetUnfolderBase]: 130/639 cut-off events. [2024-01-29 22:55:14,084 INFO L125 PetriNetUnfolderBase]: For 254/254 co-relation queries the response was YES. [2024-01-29 22:55:14,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 639 events. 130/639 cut-off events. For 254/254 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3497 event pairs, 7 based on Foata normal form. 16/571 useless extension candidates. Maximal degree in co-relation 1139. Up to 222 conditions per place. [2024-01-29 22:55:14,086 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 40 selfloop transitions, 5 changer transitions 1/85 dead transitions. [2024-01-29 22:55:14,086 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 85 transitions, 334 flow [2024-01-29 22:55:14,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:14,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:14,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 266 transitions. [2024-01-29 22:55:14,087 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6855670103092784 [2024-01-29 22:55:14,087 INFO L175 Difference]: Start difference. First operand has 86 places, 75 transitions, 218 flow. Second operand 4 states and 266 transitions. [2024-01-29 22:55:14,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 85 transitions, 334 flow [2024-01-29 22:55:14,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 85 transitions, 321 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:14,089 INFO L231 Difference]: Finished difference. Result has 84 places, 73 transitions, 207 flow [2024-01-29 22:55:14,089 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=207, PETRI_PLACES=84, PETRI_TRANSITIONS=73} [2024-01-29 22:55:14,090 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -11 predicate places. [2024-01-29 22:55:14,090 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 73 transitions, 207 flow [2024-01-29 22:55:14,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:14,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:14,091 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:14,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 22:55:14,091 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:14,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:14,091 INFO L85 PathProgramCache]: Analyzing trace with hash 145783866, now seen corresponding path program 1 times [2024-01-29 22:55:14,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:14,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358591865] [2024-01-29 22:55:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:14,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:14,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:14,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:14,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358591865] [2024-01-29 22:55:14,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358591865] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:14,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:14,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:14,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551693794] [2024-01-29 22:55:14,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:14,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:55:14,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:14,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:55:14,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:55:14,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 97 [2024-01-29 22:55:14,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 73 transitions, 207 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:14,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:14,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 97 [2024-01-29 22:55:14,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:14,166 INFO L124 PetriNetUnfolderBase]: 23/250 cut-off events. [2024-01-29 22:55:14,166 INFO L125 PetriNetUnfolderBase]: For 106/106 co-relation queries the response was YES. [2024-01-29 22:55:14,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 250 events. 23/250 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 963 event pairs, 9 based on Foata normal form. 7/207 useless extension candidates. Maximal degree in co-relation 382. Up to 42 conditions per place. [2024-01-29 22:55:14,167 INFO L140 encePairwiseOnDemand]: 93/97 looper letters, 16 selfloop transitions, 4 changer transitions 2/72 dead transitions. [2024-01-29 22:55:14,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 72 transitions, 233 flow [2024-01-29 22:55:14,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:55:14,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:55:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 249 transitions. [2024-01-29 22:55:14,168 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8556701030927835 [2024-01-29 22:55:14,168 INFO L175 Difference]: Start difference. First operand has 84 places, 73 transitions, 207 flow. Second operand 3 states and 249 transitions. [2024-01-29 22:55:14,168 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 72 transitions, 233 flow [2024-01-29 22:55:14,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 72 transitions, 201 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-01-29 22:55:14,169 INFO L231 Difference]: Finished difference. Result has 75 places, 67 transitions, 154 flow [2024-01-29 22:55:14,170 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=75, PETRI_TRANSITIONS=67} [2024-01-29 22:55:14,170 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -20 predicate places. [2024-01-29 22:55:14,170 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 67 transitions, 154 flow [2024-01-29 22:55:14,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:14,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:14,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:14,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-01-29 22:55:14,171 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:14,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:14,171 INFO L85 PathProgramCache]: Analyzing trace with hash -673115105, now seen corresponding path program 1 times [2024-01-29 22:55:14,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:14,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130683823] [2024-01-29 22:55:14,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:14,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:14,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:14,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:14,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130683823] [2024-01-29 22:55:14,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130683823] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:14,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:14,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:14,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482729056] [2024-01-29 22:55:14,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:14,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:14,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:14,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:14,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:14,318 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 97 [2024-01-29 22:55:14,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 67 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:14,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:14,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 97 [2024-01-29 22:55:14,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:14,354 INFO L124 PetriNetUnfolderBase]: 65/296 cut-off events. [2024-01-29 22:55:14,354 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-01-29 22:55:14,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 296 events. 65/296 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1137 event pairs, 61 based on Foata normal form. 12/287 useless extension candidates. Maximal degree in co-relation 515. Up to 174 conditions per place. [2024-01-29 22:55:14,355 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 35 selfloop transitions, 3 changer transitions 0/68 dead transitions. [2024-01-29 22:55:14,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 68 transitions, 232 flow [2024-01-29 22:55:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 22:55:14,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 22:55:14,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 249 transitions. [2024-01-29 22:55:14,357 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6417525773195877 [2024-01-29 22:55:14,357 INFO L175 Difference]: Start difference. First operand has 75 places, 67 transitions, 154 flow. Second operand 4 states and 249 transitions. [2024-01-29 22:55:14,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 68 transitions, 232 flow [2024-01-29 22:55:14,357 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 68 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 22:55:14,358 INFO L231 Difference]: Finished difference. Result has 73 places, 64 transitions, 150 flow [2024-01-29 22:55:14,358 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=73, PETRI_TRANSITIONS=64} [2024-01-29 22:55:14,359 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -22 predicate places. [2024-01-29 22:55:14,359 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 64 transitions, 150 flow [2024-01-29 22:55:14,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:14,359 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:14,359 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:14,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-01-29 22:55:14,360 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:14,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:14,360 INFO L85 PathProgramCache]: Analyzing trace with hash 608268607, now seen corresponding path program 1 times [2024-01-29 22:55:14,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:14,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346397419] [2024-01-29 22:55:14,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:14,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:14,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:14,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346397419] [2024-01-29 22:55:14,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346397419] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:14,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:14,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:55:14,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491367007] [2024-01-29 22:55:14,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:14,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:55:14,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:14,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:55:14,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:55:14,591 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 97 [2024-01-29 22:55:14,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 64 transitions, 150 flow. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:14,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:14,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 97 [2024-01-29 22:55:14,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:14,646 INFO L124 PetriNetUnfolderBase]: 105/364 cut-off events. [2024-01-29 22:55:14,646 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-01-29 22:55:14,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 364 events. 105/364 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1313 event pairs, 27 based on Foata normal form. 4/353 useless extension candidates. Maximal degree in co-relation 692. Up to 224 conditions per place. [2024-01-29 22:55:14,647 INFO L140 encePairwiseOnDemand]: 90/97 looper letters, 50 selfloop transitions, 4 changer transitions 1/73 dead transitions. [2024-01-29 22:55:14,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 73 transitions, 280 flow [2024-01-29 22:55:14,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:55:14,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:55:14,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 238 transitions. [2024-01-29 22:55:14,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49072164948453606 [2024-01-29 22:55:14,657 INFO L175 Difference]: Start difference. First operand has 73 places, 64 transitions, 150 flow. Second operand 5 states and 238 transitions. [2024-01-29 22:55:14,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 73 transitions, 280 flow [2024-01-29 22:55:14,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 73 transitions, 269 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:14,658 INFO L231 Difference]: Finished difference. Result has 71 places, 61 transitions, 141 flow [2024-01-29 22:55:14,658 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=141, PETRI_PLACES=71, PETRI_TRANSITIONS=61} [2024-01-29 22:55:14,659 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -24 predicate places. [2024-01-29 22:55:14,659 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 61 transitions, 141 flow [2024-01-29 22:55:14,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:14,659 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:14,659 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:14,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-01-29 22:55:14,659 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:14,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:14,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2098380485, now seen corresponding path program 1 times [2024-01-29 22:55:14,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:14,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459326815] [2024-01-29 22:55:14,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:14,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:14,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:14,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:14,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459326815] [2024-01-29 22:55:14,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459326815] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:14,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:14,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:55:14,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450315629] [2024-01-29 22:55:14,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:14,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:55:14,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:14,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:55:14,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:55:14,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 97 [2024-01-29 22:55:14,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 61 transitions, 141 flow. Second operand has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:14,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:14,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 97 [2024-01-29 22:55:14,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:14,870 INFO L124 PetriNetUnfolderBase]: 32/216 cut-off events. [2024-01-29 22:55:14,870 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2024-01-29 22:55:14,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 362 conditions, 216 events. 32/216 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 649 event pairs, 21 based on Foata normal form. 31/235 useless extension candidates. Maximal degree in co-relation 345. Up to 70 conditions per place. [2024-01-29 22:55:14,871 INFO L140 encePairwiseOnDemand]: 88/97 looper letters, 33 selfloop transitions, 3 changer transitions 0/66 dead transitions. [2024-01-29 22:55:14,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 66 transitions, 224 flow [2024-01-29 22:55:14,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:55:14,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:55:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 332 transitions. [2024-01-29 22:55:14,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6845360824742268 [2024-01-29 22:55:14,872 INFO L175 Difference]: Start difference. First operand has 71 places, 61 transitions, 141 flow. Second operand 5 states and 332 transitions. [2024-01-29 22:55:14,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 66 transitions, 224 flow [2024-01-29 22:55:14,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 66 transitions, 216 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 22:55:14,873 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 126 flow [2024-01-29 22:55:14,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-01-29 22:55:14,874 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -30 predicate places. [2024-01-29 22:55:14,874 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 126 flow [2024-01-29 22:55:14,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.25) internal successors, (249), 4 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:14,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:14,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:14,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-01-29 22:55:14,874 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:14,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:14,875 INFO L85 PathProgramCache]: Analyzing trace with hash 625285993, now seen corresponding path program 1 times [2024-01-29 22:55:14,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:14,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898239057] [2024-01-29 22:55:14,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:14,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:14,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:14,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898239057] [2024-01-29 22:55:14,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898239057] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:14,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:14,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:55:14,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834382697] [2024-01-29 22:55:14,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:14,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:55:14,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:14,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:55:14,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:55:15,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 97 [2024-01-29 22:55:15,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 126 flow. Second operand has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:15,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:15,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 97 [2024-01-29 22:55:15,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:15,172 INFO L124 PetriNetUnfolderBase]: 65/270 cut-off events. [2024-01-29 22:55:15,172 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-01-29 22:55:15,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 499 conditions, 270 events. 65/270 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 830 event pairs, 11 based on Foata normal form. 0/270 useless extension candidates. Maximal degree in co-relation 482. Up to 84 conditions per place. [2024-01-29 22:55:15,173 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 39 selfloop transitions, 4 changer transitions 14/72 dead transitions. [2024-01-29 22:55:15,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 72 transitions, 268 flow [2024-01-29 22:55:15,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-01-29 22:55:15,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-01-29 22:55:15,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 318 transitions. [2024-01-29 22:55:15,174 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5463917525773195 [2024-01-29 22:55:15,174 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 126 flow. Second operand 6 states and 318 transitions. [2024-01-29 22:55:15,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 72 transitions, 268 flow [2024-01-29 22:55:15,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 72 transitions, 263 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-29 22:55:15,175 INFO L231 Difference]: Finished difference. Result has 65 places, 45 transitions, 108 flow [2024-01-29 22:55:15,175 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=108, PETRI_PLACES=65, PETRI_TRANSITIONS=45} [2024-01-29 22:55:15,176 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -30 predicate places. [2024-01-29 22:55:15,176 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 108 flow [2024-01-29 22:55:15,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:15,176 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:55:15,176 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:15,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-01-29 22:55:15,176 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t_funErr24ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 66 more)] === [2024-01-29 22:55:15,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:55:15,177 INFO L85 PathProgramCache]: Analyzing trace with hash -2090970297, now seen corresponding path program 1 times [2024-01-29 22:55:15,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:55:15,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556082203] [2024-01-29 22:55:15,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:55:15,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:55:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:55:15,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:55:15,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:55:15,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556082203] [2024-01-29 22:55:15,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556082203] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:55:15,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:55:15,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-29 22:55:15,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172217550] [2024-01-29 22:55:15,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:55:15,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:55:15,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:55:15,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:55:15,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:55:15,335 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 97 [2024-01-29 22:55:15,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:15,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:55:15,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 97 [2024-01-29 22:55:15,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:55:15,387 INFO L124 PetriNetUnfolderBase]: 33/170 cut-off events. [2024-01-29 22:55:15,388 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2024-01-29 22:55:15,388 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 170 events. 33/170 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 456 event pairs, 27 based on Foata normal form. 4/172 useless extension candidates. Maximal degree in co-relation 299. Up to 88 conditions per place. [2024-01-29 22:55:15,388 INFO L140 encePairwiseOnDemand]: 93/97 looper letters, 0 selfloop transitions, 0 changer transitions 50/50 dead transitions. [2024-01-29 22:55:15,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 50 transitions, 182 flow [2024-01-29 22:55:15,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 22:55:15,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 22:55:15,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 263 transitions. [2024-01-29 22:55:15,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5422680412371134 [2024-01-29 22:55:15,389 INFO L175 Difference]: Start difference. First operand has 65 places, 45 transitions, 108 flow. Second operand 5 states and 263 transitions. [2024-01-29 22:55:15,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 50 transitions, 182 flow [2024-01-29 22:55:15,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 50 transitions, 175 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 22:55:15,390 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2024-01-29 22:55:15,390 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2024-01-29 22:55:15,390 INFO L281 CegarLoopForPetriNet]: 95 programPoint places, -39 predicate places. [2024-01-29 22:55:15,390 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2024-01-29 22:55:15,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:55:15,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 69 remaining) [2024-01-29 22:55:15,393 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (67 of 69 remaining) [2024-01-29 22:55:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 69 remaining) [2024-01-29 22:55:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 69 remaining) [2024-01-29 22:55:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (64 of 69 remaining) [2024-01-29 22:55:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 69 remaining) [2024-01-29 22:55:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (62 of 69 remaining) [2024-01-29 22:55:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 69 remaining) [2024-01-29 22:55:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 69 remaining) [2024-01-29 22:55:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 69 remaining) [2024-01-29 22:55:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 69 remaining) [2024-01-29 22:55:15,394 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 69 remaining) [2024-01-29 22:55:15,395 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr24ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr25ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr26ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr27ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr28ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr29ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr30ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 69 remaining) [2024-01-29 22:55:15,396 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 69 remaining) [2024-01-29 22:55:15,397 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr24ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr25ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr26ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr27ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr28ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr29ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 69 remaining) [2024-01-29 22:55:15,398 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr30ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 69 remaining) [2024-01-29 22:55:15,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-01-29 22:55:15,399 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 22:55:15,403 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 22:55:15,404 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 22:55:15,406 INFO L503 ceAbstractionStarter]: Automizer considered 35 witness invariants [2024-01-29 22:55:15,407 INFO L504 ceAbstractionStarter]: WitnessConsidered=35 [2024-01-29 22:55:15,407 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 10:55:15 BasicIcfg [2024-01-29 22:55:15,407 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 22:55:15,408 INFO L158 Benchmark]: Toolchain (without parser) took 5699.38ms. Allocated memory was 138.4MB in the beginning and 232.8MB in the end (delta: 94.4MB). Free memory was 101.6MB in the beginning and 177.6MB in the end (delta: -76.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-01-29 22:55:15,408 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory is still 112.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:15,408 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 138.4MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:15,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.76ms. Allocated memory is still 138.4MB. Free memory was 101.6MB in the beginning and 89.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-01-29 22:55:15,408 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.15ms. Allocated memory is still 138.4MB. Free memory was 89.6MB in the beginning and 87.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:15,408 INFO L158 Benchmark]: Boogie Preprocessor took 37.14ms. Allocated memory is still 138.4MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 22:55:15,409 INFO L158 Benchmark]: RCFGBuilder took 440.21ms. Allocated memory is still 138.4MB. Free memory was 85.4MB in the beginning and 56.6MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-01-29 22:55:15,409 INFO L158 Benchmark]: TraceAbstraction took 4699.19ms. Allocated memory was 138.4MB in the beginning and 232.8MB in the end (delta: 94.4MB). Free memory was 55.5MB in the beginning and 177.6MB in the end (delta: -122.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 22:55:15,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 138.4MB. Free memory is still 112.3MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 138.4MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.76ms. Allocated memory is still 138.4MB. Free memory was 101.6MB in the beginning and 89.6MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.15ms. Allocated memory is still 138.4MB. Free memory was 89.6MB in the beginning and 87.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.14ms. Allocated memory is still 138.4MB. Free memory was 87.5MB in the beginning and 85.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.21ms. Allocated memory is still 138.4MB. Free memory was 85.4MB in the beginning and 56.6MB in the end (delta: 28.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 4699.19ms. Allocated memory was 138.4MB in the beginning and 232.8MB in the end (delta: 94.4MB). Free memory was 55.5MB in the beginning and 177.6MB in the end (delta: -122.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 685]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 165 locations, 69 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.6s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2989 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1716 mSDsluCounter, 785 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 340 mSDsCounter, 399 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3256 IncrementalHoareTripleChecker+Invalid, 3655 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 399 mSolverCounterUnsat, 445 mSDtfsCounter, 3256 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=359occurred in iteration=7, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 325 NumberOfCodeBlocks, 325 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 1643 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 37 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-29 22:55:15,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE