./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_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_01-priv_nr_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ab2e0ac4 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_01-priv_nr_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-ab2e0ac-m [2024-01-29 14:16:26,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:16:26,493 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:16:26,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:16:26,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:16:26,512 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:16:26,513 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:16:26,513 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:16:26,514 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:16:26,514 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:16:26,514 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:16:26,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:16:26,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:16:26,515 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:16:26,516 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:16:26,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:16:26,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:16:26,516 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:16:26,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:16:26,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:16:26,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:16:26,519 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:16:26,520 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:16:26,520 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:16:26,523 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:16:26,523 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:16:26,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:16:26,524 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:16:26,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:16:26,525 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:16:26,526 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:16:26,526 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:16:26,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:26,527 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:16:26,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:16:26,527 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:16:26,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:16:26,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:16:26,527 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:16:26,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:16:26,528 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:16:26,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:16:26,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:16:26,528 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:16:26,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:16:26,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:16:26,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:16:26,773 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:16:26,773 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:16:26,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2024-01-29 14:16:27,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:16:27,992 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:16:27,993 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2024-01-29 14:16:28,006 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877f4c01e/54bfb7c7b049487098f8a64202a57cfe/FLAG73d0d0a8c [2024-01-29 14:16:28,017 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/877f4c01e/54bfb7c7b049487098f8a64202a57cfe [2024-01-29 14:16:28,019 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:16:28,020 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:16:28,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_01-priv_nr_true.yml/witness.yml [2024-01-29 14:16:28,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:16:28,111 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:16:28,112 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:28,112 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:16:28,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:16:28,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:28" (1/2) ... [2024-01-29 14:16:28,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c012cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:28, skipping insertion in model container [2024-01-29 14:16:28,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:16:28" (1/2) ... [2024-01-29 14:16:28,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@21df8175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:16:28, skipping insertion in model container [2024-01-29 14:16:28,119 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:28" (2/2) ... [2024-01-29 14:16:28,119 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c012cc and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:28, skipping insertion in model container [2024-01-29 14:16:28,119 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:28" (2/2) ... [2024-01-29 14:16:28,120 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:16:28,154 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:16:28,156 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-29 14:16:28,156 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t == 5 [2024-01-29 14:16:28,156 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] glob1 == 6 [2024-01-29 14:16:28,156 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 5 [2024-01-29 14:16:28,156 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] t == 5 [2024-01-29 14:16:28,157 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] glob1 == 5 [2024-01-29 14:16:28,157 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-29 14:16:28,157 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] glob1 == 5 [2024-01-29 14:16:28,158 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-29 14:16:28,158 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] t == 5 [2024-01-29 14:16:28,158 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] glob1 == 5 [2024-01-29 14:16:28,158 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-29 14:16:28,158 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] (glob1 == 5 || glob1 == 6) || ((((((-128 <= glob1 && -10 <= glob1) && glob1 <= 5) && glob1 <= 127) && glob1 % 15 == 5) && glob1 != 0) && (glob1 == -10 || glob1 == 5)) [2024-01-29 14:16:28,158 INFO L98 nessWitnessExtractor]: Location invariant before [L19-L19] (glob1 == 5 || glob1 == 6) || ((((((-128 <= glob1 && -10 <= glob1) && glob1 <= 5) && glob1 <= 127) && glob1 % 15 == 5) && glob1 != 0) && (glob1 == -10 || glob1 == 5)) [2024-01-29 14:16:28,158 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 == -10 [2024-01-29 14:16:28,159 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-29 14:16:28,159 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] t == 5 [2024-01-29 14:16:28,159 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (0LL - (long long )glob1) + (long long )t >= 0LL [2024-01-29 14:16:28,159 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-29 14:16:28,159 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (long long )glob1 - (long long )t >= 0LL [2024-01-29 14:16:28,159 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 == 5 [2024-01-29 14:16:28,160 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t == 5 [2024-01-29 14:16:28,160 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] glob1 == 6 [2024-01-29 14:16:28,160 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-29 14:16:28,160 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] glob1 == 5 [2024-01-29 14:16:28,160 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] glob1 == 5 [2024-01-29 14:16:28,160 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] glob1 == 5 [2024-01-29 14:16:28,161 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-29 14:16:28,161 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 == -10 [2024-01-29 14:16:28,161 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t == 5 [2024-01-29 14:16:28,197 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:16:28,349 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_01-priv_nr_true.i[1084,1097] [2024-01-29 14:16:28,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:28,489 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:16:28,499 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_01-priv_nr_true.i[1084,1097] [2024-01-29 14:16:28,500 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 [2024-01-29 14:16:28,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:16:28,609 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:16:28,610 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:16:28 WrapperNode [2024-01-29 14:16:28,610 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:16:28,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:28,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:16:28,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:16:28,617 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,640 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,663 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 117 [2024-01-29 14:16:28,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:16:28,664 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:16:28,665 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:16:28,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:16:28,673 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,673 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,675 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,695 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 5, 2]. 56 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-01-29 14:16:28,695 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,696 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,699 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,701 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,702 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,703 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:16:28,718 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:16:28,719 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:16:28,719 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:16:28,719 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 02:16:28" (1/1) ... [2024-01-29 14:16:28,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:16:28,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:16:28,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 14:16:28,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 14:16:28,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:16:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:16:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:16:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:16:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:16:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:16:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-29 14:16:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:16:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:16:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-29 14:16:28,783 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-29 14:16:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:16:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:16:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:16:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:16:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-29 14:16:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:16:28,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:16:28,784 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:16:28,879 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:16:28,880 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:16:29,048 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:16:29,049 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:16:29,147 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:16:29,147 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-29 14:16:29,147 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:29 BoogieIcfgContainer [2024-01-29 14:16:29,147 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:16:29,149 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:16:29,149 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:16:29,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:16:29,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:16:28" (1/4) ... [2024-01-29 14:16:29,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15206c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:16:29, skipping insertion in model container [2024-01-29 14:16:29,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:16:28" (2/4) ... [2024-01-29 14:16:29,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15206c23 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:16:29, skipping insertion in model container [2024-01-29 14:16:29,152 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 02:16:28" (3/4) ... [2024-01-29 14:16:29,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15206c23 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:16:29, skipping insertion in model container [2024-01-29 14:16:29,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:16:29" (4/4) ... [2024-01-29 14:16:29,155 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2024-01-29 14:16:29,168 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:16:29,168 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-01-29 14:16:29,168 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:16:29,217 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-29 14:16:29,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 189 flow [2024-01-29 14:16:29,291 INFO L124 PetriNetUnfolderBase]: 4/90 cut-off events. [2024-01-29 14:16:29,291 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-29 14:16:29,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 4/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2024-01-29 14:16:29,295 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 189 flow [2024-01-29 14:16:29,298 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 88 transitions, 179 flow [2024-01-29 14:16:29,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:16:29,313 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;@18777b65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:16:29,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-01-29 14:16:29,315 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:16:29,316 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:16:29,316 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:29,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:29,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:16:29,317 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:29,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:29,320 INFO L85 PathProgramCache]: Analyzing trace with hash 10727, now seen corresponding path program 1 times [2024-01-29 14:16:29,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:29,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473497849] [2024-01-29 14:16:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:29,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:29,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:29,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:29,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473497849] [2024-01-29 14:16:29,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473497849] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:29,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:29,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:16:29,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914434327] [2024-01-29 14:16:29,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:29,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:29,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:29,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:29,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:29,588 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 91 [2024-01-29 14:16:29,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 88 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:29,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:29,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 91 [2024-01-29 14:16:29,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:29,812 INFO L124 PetriNetUnfolderBase]: 181/854 cut-off events. [2024-01-29 14:16:29,813 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:16:29,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1314 conditions, 854 events. 181/854 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 5562 event pairs, 94 based on Foata normal form. 84/763 useless extension candidates. Maximal degree in co-relation 1296. Up to 252 conditions per place. [2024-01-29 14:16:29,825 INFO L140 encePairwiseOnDemand]: 66/91 looper letters, 47 selfloop transitions, 10 changer transitions 0/103 dead transitions. [2024-01-29 14:16:29,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 103 transitions, 323 flow [2024-01-29 14:16:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:29,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:29,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2024-01-29 14:16:29,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7948717948717948 [2024-01-29 14:16:29,838 INFO L175 Difference]: Start difference. First operand has 88 places, 88 transitions, 179 flow. Second operand 3 states and 217 transitions. [2024-01-29 14:16:29,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 103 transitions, 323 flow [2024-01-29 14:16:29,842 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 103 transitions, 322 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:16:29,847 INFO L231 Difference]: Finished difference. Result has 89 places, 90 transitions, 256 flow [2024-01-29 14:16:29,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=89, PETRI_TRANSITIONS=90} [2024-01-29 14:16:29,853 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2024-01-29 14:16:29,853 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 90 transitions, 256 flow [2024-01-29 14:16:29,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:29,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:29,854 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-29 14:16:29,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:16:29,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:29,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:29,855 INFO L85 PathProgramCache]: Analyzing trace with hash 10318938, now seen corresponding path program 1 times [2024-01-29 14:16:29,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:29,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078266721] [2024-01-29 14:16:29,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:29,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:29,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:29,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:29,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078266721] [2024-01-29 14:16:29,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078266721] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:29,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:29,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:29,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483927554] [2024-01-29 14:16:29,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:29,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:29,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:29,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:29,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:30,015 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 43 out of 91 [2024-01-29 14:16:30,016 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 90 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:30,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:30,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 43 of 91 [2024-01-29 14:16:30,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:30,202 INFO L124 PetriNetUnfolderBase]: 209/880 cut-off events. [2024-01-29 14:16:30,202 INFO L125 PetriNetUnfolderBase]: For 216/241 co-relation queries the response was YES. [2024-01-29 14:16:30,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 880 events. 209/880 cut-off events. For 216/241 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 5680 event pairs, 85 based on Foata normal form. 5/747 useless extension candidates. Maximal degree in co-relation 1701. Up to 240 conditions per place. [2024-01-29 14:16:30,208 INFO L140 encePairwiseOnDemand]: 75/91 looper letters, 68 selfloop transitions, 20 changer transitions 0/128 dead transitions. [2024-01-29 14:16:30,208 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 128 transitions, 548 flow [2024-01-29 14:16:30,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:30,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:30,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 306 transitions. [2024-01-29 14:16:30,214 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6725274725274726 [2024-01-29 14:16:30,214 INFO L175 Difference]: Start difference. First operand has 89 places, 90 transitions, 256 flow. Second operand 5 states and 306 transitions. [2024-01-29 14:16:30,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 128 transitions, 548 flow [2024-01-29 14:16:30,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 128 transitions, 518 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:30,223 INFO L231 Difference]: Finished difference. Result has 87 places, 92 transitions, 290 flow [2024-01-29 14:16:30,224 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=290, PETRI_PLACES=87, PETRI_TRANSITIONS=92} [2024-01-29 14:16:30,225 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -1 predicate places. [2024-01-29 14:16:30,225 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 92 transitions, 290 flow [2024-01-29 14:16:30,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.75) internal successors, (175), 4 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:30,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:30,225 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:30,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:16:30,226 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:30,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:30,228 INFO L85 PathProgramCache]: Analyzing trace with hash -705145586, now seen corresponding path program 1 times [2024-01-29 14:16:30,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:30,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937112664] [2024-01-29 14:16:30,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:30,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:30,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:30,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:30,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937112664] [2024-01-29 14:16:30,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937112664] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:30,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:30,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:30,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640773039] [2024-01-29 14:16:30,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:30,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:30,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:30,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:30,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:30,402 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 91 [2024-01-29 14:16:30,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 92 transitions, 290 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:30,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:30,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 91 [2024-01-29 14:16:30,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:30,495 INFO L124 PetriNetUnfolderBase]: 140/729 cut-off events. [2024-01-29 14:16:30,495 INFO L125 PetriNetUnfolderBase]: For 180/183 co-relation queries the response was YES. [2024-01-29 14:16:30,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1368 conditions, 729 events. 140/729 cut-off events. For 180/183 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4633 event pairs, 77 based on Foata normal form. 73/700 useless extension candidates. Maximal degree in co-relation 1347. Up to 287 conditions per place. [2024-01-29 14:16:30,498 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 35 selfloop transitions, 2 changer transitions 0/92 dead transitions. [2024-01-29 14:16:30,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 92 transitions, 378 flow [2024-01-29 14:16:30,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:30,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:30,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 252 transitions. [2024-01-29 14:16:30,500 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2024-01-29 14:16:30,500 INFO L175 Difference]: Start difference. First operand has 87 places, 92 transitions, 290 flow. Second operand 4 states and 252 transitions. [2024-01-29 14:16:30,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 92 transitions, 378 flow [2024-01-29 14:16:30,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 92 transitions, 378 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-29 14:16:30,502 INFO L231 Difference]: Finished difference. Result has 82 places, 84 transitions, 278 flow [2024-01-29 14:16:30,503 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=82, PETRI_TRANSITIONS=84} [2024-01-29 14:16:30,503 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -6 predicate places. [2024-01-29 14:16:30,503 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 84 transitions, 278 flow [2024-01-29 14:16:30,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:30,504 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:30,504 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:30,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:16:30,504 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:30,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:30,505 INFO L85 PathProgramCache]: Analyzing trace with hash -325528768, now seen corresponding path program 1 times [2024-01-29 14:16:30,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:30,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907144272] [2024-01-29 14:16:30,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:30,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:30,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:30,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:30,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907144272] [2024-01-29 14:16:30,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907144272] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:30,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:30,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:30,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295158332] [2024-01-29 14:16:30,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:30,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:30,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:30,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:30,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:30,581 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 91 [2024-01-29 14:16:30,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 84 transitions, 278 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:30,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:30,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 91 [2024-01-29 14:16:30,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:30,681 INFO L124 PetriNetUnfolderBase]: 191/774 cut-off events. [2024-01-29 14:16:30,681 INFO L125 PetriNetUnfolderBase]: For 243/282 co-relation queries the response was YES. [2024-01-29 14:16:30,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1641 conditions, 774 events. 191/774 cut-off events. For 243/282 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4761 event pairs, 92 based on Foata normal form. 70/737 useless extension candidates. Maximal degree in co-relation 1618. Up to 240 conditions per place. [2024-01-29 14:16:30,684 INFO L140 encePairwiseOnDemand]: 76/91 looper letters, 51 selfloop transitions, 13 changer transitions 1/97 dead transitions. [2024-01-29 14:16:30,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 97 transitions, 422 flow [2024-01-29 14:16:30,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:16:30,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:16:30,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 252 transitions. [2024-01-29 14:16:30,686 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2024-01-29 14:16:30,686 INFO L175 Difference]: Start difference. First operand has 82 places, 84 transitions, 278 flow. Second operand 4 states and 252 transitions. [2024-01-29 14:16:30,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 97 transitions, 422 flow [2024-01-29 14:16:30,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 97 transitions, 418 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:30,688 INFO L231 Difference]: Finished difference. Result has 85 places, 80 transitions, 304 flow [2024-01-29 14:16:30,689 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=304, PETRI_PLACES=85, PETRI_TRANSITIONS=80} [2024-01-29 14:16:30,689 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -3 predicate places. [2024-01-29 14:16:30,689 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 80 transitions, 304 flow [2024-01-29 14:16:30,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:30,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:30,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:30,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-29 14:16:30,690 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:30,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:30,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1561805566, now seen corresponding path program 1 times [2024-01-29 14:16:30,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:30,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430148852] [2024-01-29 14:16:30,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:30,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:30,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:30,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430148852] [2024-01-29 14:16:30,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430148852] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:30,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:30,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:30,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920553398] [2024-01-29 14:16:30,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:30,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:30,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:30,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:30,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:30,734 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 91 [2024-01-29 14:16:30,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 80 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:30,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:30,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 91 [2024-01-29 14:16:30,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:30,783 INFO L124 PetriNetUnfolderBase]: 35/252 cut-off events. [2024-01-29 14:16:30,783 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-01-29 14:16:30,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 498 conditions, 252 events. 35/252 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 913 event pairs, 9 based on Foata normal form. 13/235 useless extension candidates. Maximal degree in co-relation 473. Up to 78 conditions per place. [2024-01-29 14:16:30,784 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 22 selfloop transitions, 4 changer transitions 2/67 dead transitions. [2024-01-29 14:16:30,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 67 transitions, 263 flow [2024-01-29 14:16:30,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:30,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:30,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2024-01-29 14:16:30,786 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7802197802197802 [2024-01-29 14:16:30,786 INFO L175 Difference]: Start difference. First operand has 85 places, 80 transitions, 304 flow. Second operand 3 states and 213 transitions. [2024-01-29 14:16:30,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 67 transitions, 263 flow [2024-01-29 14:16:30,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 67 transitions, 194 flow, removed 13 selfloop flow, removed 11 redundant places. [2024-01-29 14:16:30,788 INFO L231 Difference]: Finished difference. Result has 69 places, 62 transitions, 135 flow [2024-01-29 14:16:30,788 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=69, PETRI_TRANSITIONS=62} [2024-01-29 14:16:30,790 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -19 predicate places. [2024-01-29 14:16:30,790 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 62 transitions, 135 flow [2024-01-29 14:16:30,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:30,791 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:30,791 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:30,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-29 14:16:30,791 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:30,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:30,792 INFO L85 PathProgramCache]: Analyzing trace with hash -2031770819, now seen corresponding path program 1 times [2024-01-29 14:16:30,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:30,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350997934] [2024-01-29 14:16:30,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:30,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:30,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:30,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:30,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350997934] [2024-01-29 14:16:30,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350997934] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:30,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:30,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:30,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382770987] [2024-01-29 14:16:30,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:30,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:16:30,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:30,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:16:30,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:16:30,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 91 [2024-01-29 14:16:30,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 62 transitions, 135 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 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 14:16:30,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:30,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 91 [2024-01-29 14:16:30,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:30,983 INFO L124 PetriNetUnfolderBase]: 53/243 cut-off events. [2024-01-29 14:16:30,983 INFO L125 PetriNetUnfolderBase]: For 9/10 co-relation queries the response was YES. [2024-01-29 14:16:30,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 243 events. 53/243 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 741 event pairs, 13 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 419. Up to 71 conditions per place. [2024-01-29 14:16:30,984 INFO L140 encePairwiseOnDemand]: 78/91 looper letters, 30 selfloop transitions, 6 changer transitions 11/68 dead transitions. [2024-01-29 14:16:30,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 68 transitions, 244 flow [2024-01-29 14:16:30,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-29 14:16:30,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-29 14:16:30,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 239 transitions. [2024-01-29 14:16:30,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5252747252747253 [2024-01-29 14:16:30,986 INFO L175 Difference]: Start difference. First operand has 69 places, 62 transitions, 135 flow. Second operand 5 states and 239 transitions. [2024-01-29 14:16:30,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 68 transitions, 244 flow [2024-01-29 14:16:30,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 68 transitions, 238 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-29 14:16:30,988 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 122 flow [2024-01-29 14:16:30,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=122, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2024-01-29 14:16:30,990 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -24 predicate places. [2024-01-29 14:16:30,990 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 122 flow [2024-01-29 14:16:30,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 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 14:16:30,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:30,991 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:30,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-29 14:16:30,991 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:30,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:30,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1678375456, now seen corresponding path program 1 times [2024-01-29 14:16:30,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:30,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239879971] [2024-01-29 14:16:30,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:30,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:31,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:31,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:31,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239879971] [2024-01-29 14:16:31,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239879971] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:31,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:31,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:16:31,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148938006] [2024-01-29 14:16:31,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:31,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:31,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:31,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:31,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:31,061 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 91 [2024-01-29 14:16:31,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:31,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:31,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 91 [2024-01-29 14:16:31,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:31,094 INFO L124 PetriNetUnfolderBase]: 28/156 cut-off events. [2024-01-29 14:16:31,095 INFO L125 PetriNetUnfolderBase]: For 18/19 co-relation queries the response was YES. [2024-01-29 14:16:31,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 156 events. 28/156 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 374 event pairs, 20 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 262. Up to 67 conditions per place. [2024-01-29 14:16:31,095 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 22 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-01-29 14:16:31,095 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 50 transitions, 170 flow [2024-01-29 14:16:31,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:31,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:31,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2024-01-29 14:16:31,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7289377289377289 [2024-01-29 14:16:31,097 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 122 flow. Second operand 3 states and 199 transitions. [2024-01-29 14:16:31,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 50 transitions, 170 flow [2024-01-29 14:16:31,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 158 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-29 14:16:31,098 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 110 flow [2024-01-29 14:16:31,099 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2024-01-29 14:16:31,099 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -33 predicate places. [2024-01-29 14:16:31,099 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 110 flow [2024-01-29 14:16:31,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:31,101 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:31,101 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] [2024-01-29 14:16:31,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-29 14:16:31,101 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:31,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:31,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1451119334, now seen corresponding path program 1 times [2024-01-29 14:16:31,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:31,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28707986] [2024-01-29 14:16:31,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:31,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:31,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:31,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:31,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:31,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28707986] [2024-01-29 14:16:31,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28707986] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:31,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:31,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:31,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687912276] [2024-01-29 14:16:31,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:31,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:31,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:31,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:31,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:31,159 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 91 [2024-01-29 14:16:31,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:31,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:31,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 91 [2024-01-29 14:16:31,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:31,194 INFO L124 PetriNetUnfolderBase]: 35/170 cut-off events. [2024-01-29 14:16:31,195 INFO L125 PetriNetUnfolderBase]: For 17/18 co-relation queries the response was YES. [2024-01-29 14:16:31,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 170 events. 35/170 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 404 event pairs, 27 based on Foata normal form. 4/165 useless extension candidates. Maximal degree in co-relation 298. Up to 88 conditions per place. [2024-01-29 14:16:31,195 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 28 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-01-29 14:16:31,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 48 transitions, 170 flow [2024-01-29 14:16:31,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:31,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:31,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2024-01-29 14:16:31,197 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6996336996336996 [2024-01-29 14:16:31,197 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 110 flow. Second operand 3 states and 191 transitions. [2024-01-29 14:16:31,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 48 transitions, 170 flow [2024-01-29 14:16:31,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:31,198 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 102 flow [2024-01-29 14:16:31,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2024-01-29 14:16:31,199 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -35 predicate places. [2024-01-29 14:16:31,199 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 102 flow [2024-01-29 14:16:31,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:31,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:31,200 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] [2024-01-29 14:16:31,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-29 14:16:31,200 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:31,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:31,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1046290959, now seen corresponding path program 1 times [2024-01-29 14:16:31,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:31,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996934774] [2024-01-29 14:16:31,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:31,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:31,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:31,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996934774] [2024-01-29 14:16:31,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996934774] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:31,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:31,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:31,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518858426] [2024-01-29 14:16:31,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:31,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:31,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:31,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:31,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:31,273 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 91 [2024-01-29 14:16:31,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:31,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:31,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 91 [2024-01-29 14:16:31,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:31,308 INFO L124 PetriNetUnfolderBase]: 28/156 cut-off events. [2024-01-29 14:16:31,309 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2024-01-29 14:16:31,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 156 events. 28/156 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 364 event pairs, 16 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 254. Up to 55 conditions per place. [2024-01-29 14:16:31,310 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 23 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2024-01-29 14:16:31,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 47 transitions, 156 flow [2024-01-29 14:16:31,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:31,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:31,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2024-01-29 14:16:31,311 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7362637362637363 [2024-01-29 14:16:31,311 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 102 flow. Second operand 3 states and 201 transitions. [2024-01-29 14:16:31,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 47 transitions, 156 flow [2024-01-29 14:16:31,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 47 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:31,312 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 102 flow [2024-01-29 14:16:31,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-01-29 14:16:31,313 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -36 predicate places. [2024-01-29 14:16:31,314 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 102 flow [2024-01-29 14:16:31,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:31,315 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:16:31,315 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 14:16:31,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-29 14:16:31,316 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-29 14:16:31,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:16:31,317 INFO L85 PathProgramCache]: Analyzing trace with hash 463278289, now seen corresponding path program 1 times [2024-01-29 14:16:31,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:16:31,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959656551] [2024-01-29 14:16:31,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:16:31,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:16:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:16:31,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:16:31,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:16:31,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959656551] [2024-01-29 14:16:31,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959656551] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:16:31,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:16:31,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 14:16:31,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283678395] [2024-01-29 14:16:31,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:16:31,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:16:31,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:16:31,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:16:31,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:16:31,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 91 [2024-01-29 14:16:31,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:31,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:16:31,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 91 [2024-01-29 14:16:31,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:16:31,422 INFO L124 PetriNetUnfolderBase]: 26/155 cut-off events. [2024-01-29 14:16:31,423 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2024-01-29 14:16:31,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 155 events. 26/155 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 355 event pairs, 10 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 251. Up to 48 conditions per place. [2024-01-29 14:16:31,423 INFO L140 encePairwiseOnDemand]: 89/91 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2024-01-29 14:16:31,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 154 flow [2024-01-29 14:16:31,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:16:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:16:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2024-01-29 14:16:31,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7326007326007326 [2024-01-29 14:16:31,426 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 102 flow. Second operand 3 states and 200 transitions. [2024-01-29 14:16:31,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 154 flow [2024-01-29 14:16:31,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:16:31,427 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2024-01-29 14:16:31,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=49, 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=3, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2024-01-29 14:16:31,428 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -37 predicate places. [2024-01-29 14:16:31,428 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2024-01-29 14:16:31,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 14:16:31,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 57 remaining) [2024-01-29 14:16:31,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (55 of 57 remaining) [2024-01-29 14:16:31,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 57 remaining) [2024-01-29 14:16:31,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 57 remaining) [2024-01-29 14:16:31,431 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 57 remaining) [2024-01-29 14:16:31,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (51 of 57 remaining) [2024-01-29 14:16:31,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 57 remaining) [2024-01-29 14:16:31,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 57 remaining) [2024-01-29 14:16:31,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 57 remaining) [2024-01-29 14:16:31,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 57 remaining) [2024-01-29 14:16:31,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 57 remaining) [2024-01-29 14:16:31,432 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 57 remaining) [2024-01-29 14:16:31,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 57 remaining) [2024-01-29 14:16:31,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 57 remaining) [2024-01-29 14:16:31,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 57 remaining) [2024-01-29 14:16:31,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (41 of 57 remaining) [2024-01-29 14:16:31,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 57 remaining) [2024-01-29 14:16:31,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 57 remaining) [2024-01-29 14:16:31,433 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 57 remaining) [2024-01-29 14:16:31,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 57 remaining) [2024-01-29 14:16:31,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 57 remaining) [2024-01-29 14:16:31,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 57 remaining) [2024-01-29 14:16:31,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONERROR_FUNCTION (34 of 57 remaining) [2024-01-29 14:16:31,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 57 remaining) [2024-01-29 14:16:31,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 57 remaining) [2024-01-29 14:16:31,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 57 remaining) [2024-01-29 14:16:31,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 57 remaining) [2024-01-29 14:16:31,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 57 remaining) [2024-01-29 14:16:31,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 57 remaining) [2024-01-29 14:16:31,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 57 remaining) [2024-01-29 14:16:31,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 57 remaining) [2024-01-29 14:16:31,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 57 remaining) [2024-01-29 14:16:31,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 57 remaining) [2024-01-29 14:16:31,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 57 remaining) [2024-01-29 14:16:31,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 57 remaining) [2024-01-29 14:16:31,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 57 remaining) [2024-01-29 14:16:31,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 57 remaining) [2024-01-29 14:16:31,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 57 remaining) [2024-01-29 14:16:31,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 57 remaining) [2024-01-29 14:16:31,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (17 of 57 remaining) [2024-01-29 14:16:31,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 57 remaining) [2024-01-29 14:16:31,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 57 remaining) [2024-01-29 14:16:31,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 57 remaining) [2024-01-29 14:16:31,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 57 remaining) [2024-01-29 14:16:31,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 57 remaining) [2024-01-29 14:16:31,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 57 remaining) [2024-01-29 14:16:31,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONERROR_FUNCTION (10 of 57 remaining) [2024-01-29 14:16:31,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 57 remaining) [2024-01-29 14:16:31,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 57 remaining) [2024-01-29 14:16:31,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 57 remaining) [2024-01-29 14:16:31,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 57 remaining) [2024-01-29 14:16:31,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 57 remaining) [2024-01-29 14:16:31,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 57 remaining) [2024-01-29 14:16:31,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 57 remaining) [2024-01-29 14:16:31,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 57 remaining) [2024-01-29 14:16:31,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 57 remaining) [2024-01-29 14:16:31,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 57 remaining) [2024-01-29 14:16:31,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-29 14:16:31,440 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:16:31,444 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-29 14:16:31,445 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-29 14:16:31,448 INFO L503 ceAbstractionStarter]: Automizer considered 28 witness invariants [2024-01-29 14:16:31,448 INFO L504 ceAbstractionStarter]: WitnessConsidered=28 [2024-01-29 14:16:31,450 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 02:16:31 BasicIcfg [2024-01-29 14:16:31,450 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-29 14:16:31,451 INFO L158 Benchmark]: Toolchain (without parser) took 3339.51ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 133.4MB in the beginning and 159.9MB in the end (delta: -26.5MB). Peak memory consumption was 116.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:31,451 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:31,451 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-29 14:16:31,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 498.07ms. Allocated memory is still 167.8MB. Free memory was 132.5MB in the beginning and 108.6MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:31,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.57ms. Allocated memory is still 167.8MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:31,452 INFO L158 Benchmark]: Boogie Preprocessor took 45.90ms. Allocated memory is still 167.8MB. Free memory was 106.5MB in the beginning and 104.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-29 14:16:31,452 INFO L158 Benchmark]: RCFGBuilder took 428.94ms. Allocated memory is still 167.8MB. Free memory was 104.4MB in the beginning and 73.8MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-01-29 14:16:31,452 INFO L158 Benchmark]: TraceAbstraction took 2301.58ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 72.9MB in the beginning and 159.9MB in the end (delta: -87.0MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2024-01-29 14:16:31,453 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 498.07ms. Allocated memory is still 167.8MB. Free memory was 132.5MB in the beginning and 108.6MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.57ms. Allocated memory is still 167.8MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.90ms. Allocated memory is still 167.8MB. Free memory was 106.5MB in the beginning and 104.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 428.94ms. Allocated memory is still 167.8MB. Free memory was 104.4MB in the beginning and 73.8MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2301.58ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 72.9MB in the beginning and 159.9MB in the end (delta: -87.0MB). Peak memory consumption was 57.4MB. 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: 701]: 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: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 703]: 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: 688]: 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: 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: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: 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: 690]: 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: 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: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 147 locations, 57 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.2s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 685 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 399 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 942 IncrementalHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 43 mSDtfsCounter, 942 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304occurred in iteration=4, InterpolantAutomatonStates: 36, 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, 0.5s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 259 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-01-29 14:16:31,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE