./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_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_25-struct_nr_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27552612 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_25-struct_nr_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_25-struct_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-2755261-m [2024-01-26 15:18:30,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:18:30,099 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:18:30,104 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:18:30,105 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:18:30,131 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:18:30,132 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:18:30,132 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:18:30,132 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:18:30,135 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:18:30,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:18:30,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:18:30,136 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:18:30,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:18:30,137 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:18:30,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:18:30,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:18:30,138 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:18:30,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:18:30,138 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:18:30,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:18:30,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:18:30,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:18:30,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:18:30,140 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:18:30,141 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:18:30,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:18:30,141 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:18:30,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:18:30,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:18:30,142 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:18:30,143 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:18:30,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:30,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:18:30,143 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:18:30,143 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:18:30,143 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:18:30,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:18:30,144 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:18:30,144 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:18:30,144 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:18:30,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:18:30,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:18:30,148 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:18:30,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:18:30,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:18:30,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:18:30,383 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:18:30,383 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:18:30,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2024-01-26 15:18:31,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:18:31,589 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:18:31,590 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_25-struct_nr_true.i [2024-01-26 15:18:31,613 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7e35b4c5/f21498df89234e5ca14f420409f70ae8/FLAGc8f7d5b59 [2024-01-26 15:18:31,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7e35b4c5/f21498df89234e5ca14f420409f70ae8 [2024-01-26 15:18:31,630 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:18:31,630 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:18:31,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_25-struct_nr_true.yml/witness.yml [2024-01-26 15:18:31,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:18:31,723 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:18:31,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:31,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:18:31,728 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:18:31,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:31" (1/2) ... [2024-01-26 15:18:31,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4370a363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:31, skipping insertion in model container [2024-01-26 15:18:31,729 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:18:31" (1/2) ... [2024-01-26 15:18:31,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6e72f868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:18:31, skipping insertion in model container [2024-01-26 15:18:31,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:31" (2/2) ... [2024-01-26 15:18:31,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4370a363 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:31, skipping insertion in model container [2024-01-26 15:18:31,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:31" (2/2) ... [2024-01-26 15:18:31,731 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:18:31,762 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:18:31,764 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] glob1 == 5 [2024-01-26 15:18:31,764 INFO L98 nessWitnessExtractor]: Location invariant before [L699-L699] glob1 == 5 [2024-01-26 15:18:31,764 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 5 [2024-01-26 15:18:31,765 INFO L98 nessWitnessExtractor]: Location invariant before [L704-L704] glob1 == 6 [2024-01-26 15:18:31,765 INFO L98 nessWitnessExtractor]: Location invariant before [L705-L705] glob1 == 5 [2024-01-26 15:18:31,765 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] t == 5 [2024-01-26 15:18:31,766 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 == 5 [2024-01-26 15:18:31,766 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-26 15:18:31,766 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] glob1 == 6 [2024-01-26 15:18:31,766 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] (unsigned long )arg == 0UL [2024-01-26 15:18:31,766 INFO L98 nessWitnessExtractor]: Location invariant before [L695-L695] t == 5 [2024-01-26 15:18:31,766 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (0LL - (long long )glob1) + (long long )t >= 0LL [2024-01-26 15:18:31,766 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] glob1 == 5 [2024-01-26 15:18:31,766 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (long long )glob1 - (long long )t >= 0LL [2024-01-26 15:18:31,767 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] (unsigned long )arg == 0UL [2024-01-26 15:18:31,767 INFO L98 nessWitnessExtractor]: Location invariant before [L694-L694] t == 5 [2024-01-26 15:18:31,767 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)) [2024-01-26 15:18:31,767 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)) [2024-01-26 15:18:31,767 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] glob1 == -10 [2024-01-26 15:18:31,767 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t == 5 [2024-01-26 15:18:31,767 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-26 15:18:31,768 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 == -10 [2024-01-26 15:18:31,768 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t == 5 [2024-01-26 15:18:31,768 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-26 15:18:31,768 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] glob1 == 5 [2024-01-26 15:18:31,768 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-26 15:18:31,769 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-26 15:18:31,769 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t == 5 [2024-01-26 15:18:31,769 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-26 15:18:31,769 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 == 5 [2024-01-26 15:18:31,804 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:18:31,946 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_25-struct_nr_true.i[1086,1099] [2024-01-26 15:18:32,073 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:32,084 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 15:18:32,096 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_25-struct_nr_true.i[1086,1099] [2024-01-26 15:18:32,097 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 [2024-01-26 15:18:32,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:18:32,214 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:18:32,215 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32 WrapperNode [2024-01-26 15:18:32,215 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:18:32,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:32,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:18:32,217 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:18:32,222 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 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,234 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 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,258 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 109 [2024-01-26 15:18:32,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:18:32,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:18:32,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:18:32,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:18:32,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,277 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,287 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]. [2024-01-26 15:18:32,287 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,287 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,294 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,301 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:18:32,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:18:32,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:18:32,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:18:32,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32" (1/1) ... [2024-01-26 15:18:32,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:18:32,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:18:32,330 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) [2024-01-26 15:18:32,333 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 [2024-01-26 15:18:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-26 15:18:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-26 15:18:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-26 15:18:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:18:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:18:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:18:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-26 15:18:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:18:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:18:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-26 15:18:32,359 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-26 15:18:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:18:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:18:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:18:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:18:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-26 15:18:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:18:32,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:18:32,361 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:18:32,522 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:18:32,524 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:18:32,705 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:18:32,705 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:18:32,769 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:18:32,770 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-26 15:18:32,770 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:32 BoogieIcfgContainer [2024-01-26 15:18:32,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:18:32,772 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:18:32,772 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:18:32,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:18:32,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:18:31" (1/4) ... [2024-01-26 15:18:32,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66204c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:18:32, skipping insertion in model container [2024-01-26 15:18:32,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:18:31" (2/4) ... [2024-01-26 15:18:32,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66204c1a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:18:32, skipping insertion in model container [2024-01-26 15:18:32,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:18:32" (3/4) ... [2024-01-26 15:18:32,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66204c1a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:18:32, skipping insertion in model container [2024-01-26 15:18:32,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:18:32" (4/4) ... [2024-01-26 15:18:32,778 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2024-01-26 15:18:32,790 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:18:32,790 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-01-26 15:18:32,790 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:18:32,837 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-26 15:18:32,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 189 flow [2024-01-26 15:18:32,914 INFO L124 PetriNetUnfolderBase]: 4/90 cut-off events. [2024-01-26 15:18:32,914 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-26 15:18:32,918 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 101 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. [2024-01-26 15:18:32,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 189 flow [2024-01-26 15:18:32,922 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 88 transitions, 179 flow [2024-01-26 15:18:32,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:18:32,940 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;@2c0576df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:18:32,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-01-26 15:18:32,942 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:18:32,943 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:18:32,943 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:32,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:32,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:18:32,944 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)] === [2024-01-26 15:18:32,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:32,948 INFO L85 PathProgramCache]: Analyzing trace with hash 9947, now seen corresponding path program 1 times [2024-01-26 15:18:32,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:32,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703960087] [2024-01-26 15:18:32,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:32,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:33,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:33,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:33,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703960087] [2024-01-26 15:18:33,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703960087] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:33,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:33,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:18:33,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290721970] [2024-01-26 15:18:33,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:33,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:33,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:33,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:33,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:33,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 91 [2024-01-26 15:18:33,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 88 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-01-26 15:18:33,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:33,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 91 [2024-01-26 15:18:33,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:33,422 INFO L124 PetriNetUnfolderBase]: 157/806 cut-off events. [2024-01-26 15:18:33,423 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:18:33,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1213 conditions, 806 events. 157/806 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5227 event pairs, 84 based on Foata normal form. 78/698 useless extension candidates. Maximal degree in co-relation 1195. Up to 230 conditions per place. [2024-01-26 15:18:33,432 INFO L140 encePairwiseOnDemand]: 67/91 looper letters, 44 selfloop transitions, 9 changer transitions 0/101 dead transitions. [2024-01-26 15:18:33,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 101 transitions, 311 flow [2024-01-26 15:18:33,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:33,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:33,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2024-01-26 15:18:33,445 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8021978021978022 [2024-01-26 15:18:33,446 INFO L175 Difference]: Start difference. First operand has 88 places, 88 transitions, 179 flow. Second operand 3 states and 219 transitions. [2024-01-26 15:18:33,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 101 transitions, 311 flow [2024-01-26 15:18:33,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 101 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:33,455 INFO L231 Difference]: Finished difference. Result has 89 places, 89 transitions, 248 flow [2024-01-26 15:18:33,456 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=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=89, PETRI_TRANSITIONS=89} [2024-01-26 15:18:33,459 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2024-01-26 15:18:33,459 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 89 transitions, 248 flow [2024-01-26 15:18:33,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-01-26 15:18:33,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:33,460 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-26 15:18:33,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:18:33,460 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)] === [2024-01-26 15:18:33,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:33,461 INFO L85 PathProgramCache]: Analyzing trace with hash 9568624, now seen corresponding path program 1 times [2024-01-26 15:18:33,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:33,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882006403] [2024-01-26 15:18:33,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:33,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:33,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:33,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:33,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882006403] [2024-01-26 15:18:33,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882006403] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:33,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:33,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:33,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298304647] [2024-01-26 15:18:33,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:33,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:33,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:33,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:33,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:33,637 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 91 [2024-01-26 15:18:33,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 89 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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) [2024-01-26 15:18:33,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:33,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 91 [2024-01-26 15:18:33,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:33,782 INFO L124 PetriNetUnfolderBase]: 182/819 cut-off events. [2024-01-26 15:18:33,782 INFO L125 PetriNetUnfolderBase]: For 222/265 co-relation queries the response was YES. [2024-01-26 15:18:33,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1565 conditions, 819 events. 182/819 cut-off events. For 222/265 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5271 event pairs, 76 based on Foata normal form. 5/673 useless extension candidates. Maximal degree in co-relation 1545. Up to 219 conditions per place. [2024-01-26 15:18:33,786 INFO L140 encePairwiseOnDemand]: 76/91 looper letters, 62 selfloop transitions, 19 changer transitions 0/123 dead transitions. [2024-01-26 15:18:33,786 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 123 transitions, 516 flow [2024-01-26 15:18:33,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:18:33,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:18:33,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 309 transitions. [2024-01-26 15:18:33,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6791208791208792 [2024-01-26 15:18:33,789 INFO L175 Difference]: Start difference. First operand has 89 places, 89 transitions, 248 flow. Second operand 5 states and 309 transitions. [2024-01-26 15:18:33,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 123 transitions, 516 flow [2024-01-26 15:18:33,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 123 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:33,793 INFO L231 Difference]: Finished difference. Result has 87 places, 91 transitions, 282 flow [2024-01-26 15:18:33,793 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=282, PETRI_PLACES=87, PETRI_TRANSITIONS=91} [2024-01-26 15:18:33,793 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -1 predicate places. [2024-01-26 15:18:33,794 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 91 transitions, 282 flow [2024-01-26 15:18:33,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 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) [2024-01-26 15:18:33,794 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:33,794 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:33,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:18:33,794 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)] === [2024-01-26 15:18:33,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:33,795 INFO L85 PathProgramCache]: Analyzing trace with hash -2145600355, now seen corresponding path program 1 times [2024-01-26 15:18:33,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:33,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428861338] [2024-01-26 15:18:33,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:33,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:33,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:33,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:33,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428861338] [2024-01-26 15:18:33,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428861338] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:33,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:33,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:33,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025966992] [2024-01-26 15:18:33,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:33,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:33,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:33,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:33,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:33,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 91 [2024-01-26 15:18:33,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 91 transitions, 282 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) [2024-01-26 15:18:33,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:33,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 91 [2024-01-26 15:18:33,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:34,004 INFO L124 PetriNetUnfolderBase]: 127/657 cut-off events. [2024-01-26 15:18:34,004 INFO L125 PetriNetUnfolderBase]: For 182/188 co-relation queries the response was YES. [2024-01-26 15:18:34,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1237 conditions, 657 events. 127/657 cut-off events. For 182/188 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4098 event pairs, 71 based on Foata normal form. 78/640 useless extension candidates. Maximal degree in co-relation 1216. Up to 268 conditions per place. [2024-01-26 15:18:34,007 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 36 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-01-26 15:18:34,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 91 transitions, 372 flow [2024-01-26 15:18:34,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:34,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:34,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 252 transitions. [2024-01-26 15:18:34,010 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2024-01-26 15:18:34,011 INFO L175 Difference]: Start difference. First operand has 87 places, 91 transitions, 282 flow. Second operand 4 states and 252 transitions. [2024-01-26 15:18:34,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 91 transitions, 372 flow [2024-01-26 15:18:34,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 91 transitions, 372 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-26 15:18:34,015 INFO L231 Difference]: Finished difference. Result has 82 places, 83 transitions, 270 flow [2024-01-26 15:18:34,015 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=270, PETRI_PLACES=82, PETRI_TRANSITIONS=83} [2024-01-26 15:18:34,016 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -6 predicate places. [2024-01-26 15:18:34,017 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 83 transitions, 270 flow [2024-01-26 15:18:34,017 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) [2024-01-26 15:18:34,017 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:34,017 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:34,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:18:34,017 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)] === [2024-01-26 15:18:34,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:34,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1958554934, now seen corresponding path program 1 times [2024-01-26 15:18:34,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:34,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412936615] [2024-01-26 15:18:34,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:34,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:34,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:34,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:34,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412936615] [2024-01-26 15:18:34,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412936615] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:34,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:34,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:34,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516691197] [2024-01-26 15:18:34,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:34,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:34,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:34,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:34,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:34,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 91 [2024-01-26 15:18:34,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 83 transitions, 270 flow. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:18:34,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:34,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 91 [2024-01-26 15:18:34,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:34,226 INFO L124 PetriNetUnfolderBase]: 163/715 cut-off events. [2024-01-26 15:18:34,226 INFO L125 PetriNetUnfolderBase]: For 242/321 co-relation queries the response was YES. [2024-01-26 15:18:34,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1474 conditions, 715 events. 163/715 cut-off events. For 242/321 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4411 event pairs, 82 based on Foata normal form. 67/671 useless extension candidates. Maximal degree in co-relation 1451. Up to 221 conditions per place. [2024-01-26 15:18:34,229 INFO L140 encePairwiseOnDemand]: 77/91 looper letters, 48 selfloop transitions, 11 changer transitions 1/94 dead transitions. [2024-01-26 15:18:34,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 94 transitions, 398 flow [2024-01-26 15:18:34,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:18:34,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:18:34,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 255 transitions. [2024-01-26 15:18:34,231 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7005494505494505 [2024-01-26 15:18:34,231 INFO L175 Difference]: Start difference. First operand has 82 places, 83 transitions, 270 flow. Second operand 4 states and 255 transitions. [2024-01-26 15:18:34,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 94 transitions, 398 flow [2024-01-26 15:18:34,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 94 transitions, 394 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:34,233 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 283 flow [2024-01-26 15:18:34,233 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=283, PETRI_PLACES=85, PETRI_TRANSITIONS=78} [2024-01-26 15:18:34,234 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -3 predicate places. [2024-01-26 15:18:34,234 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 283 flow [2024-01-26 15:18:34,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-26 15:18:34,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:34,234 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:34,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-26 15:18:34,235 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-26 15:18:34,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1188471866, now seen corresponding path program 1 times [2024-01-26 15:18:34,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:34,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013619546] [2024-01-26 15:18:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:34,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:34,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:34,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:34,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013619546] [2024-01-26 15:18:34,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013619546] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:34,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:34,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:34,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401415476] [2024-01-26 15:18:34,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:34,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:18:34,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:34,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:18:34,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:18:34,332 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 91 [2024-01-26 15:18:34,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) [2024-01-26 15:18:34,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:34,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 91 [2024-01-26 15:18:34,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:34,427 INFO L124 PetriNetUnfolderBase]: 195/719 cut-off events. [2024-01-26 15:18:34,427 INFO L125 PetriNetUnfolderBase]: For 533/547 co-relation queries the response was YES. [2024-01-26 15:18:34,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1773 conditions, 719 events. 195/719 cut-off events. For 533/547 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4193 event pairs, 50 based on Foata normal form. 31/700 useless extension candidates. Maximal degree in co-relation 1748. Up to 249 conditions per place. [2024-01-26 15:18:34,430 INFO L140 encePairwiseOnDemand]: 74/91 looper letters, 59 selfloop transitions, 11 changer transitions 3/99 dead transitions. [2024-01-26 15:18:34,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 99 transitions, 511 flow [2024-01-26 15:18:34,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-26 15:18:34,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-26 15:18:34,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 278 transitions. [2024-01-26 15:18:34,431 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.610989010989011 [2024-01-26 15:18:34,431 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 283 flow. Second operand 5 states and 278 transitions. [2024-01-26 15:18:34,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 99 transitions, 511 flow [2024-01-26 15:18:34,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 99 transitions, 500 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-26 15:18:34,434 INFO L231 Difference]: Finished difference. Result has 84 places, 76 transitions, 344 flow [2024-01-26 15:18:34,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=344, PETRI_PLACES=84, PETRI_TRANSITIONS=76} [2024-01-26 15:18:34,436 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -4 predicate places. [2024-01-26 15:18:34,436 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 344 flow [2024-01-26 15:18:34,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) [2024-01-26 15:18:34,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:34,436 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:34,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-26 15:18:34,437 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-26 15:18:34,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:34,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1577991050, now seen corresponding path program 1 times [2024-01-26 15:18:34,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:34,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999410457] [2024-01-26 15:18:34,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:34,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:34,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:34,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:34,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999410457] [2024-01-26 15:18:34,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999410457] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:34,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:34,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:34,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097100804] [2024-01-26 15:18:34,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:34,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:34,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:34,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:34,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:34,481 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 91 [2024-01-26 15:18:34,481 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 76 transitions, 344 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) [2024-01-26 15:18:34,481 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:34,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 91 [2024-01-26 15:18:34,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:34,521 INFO L124 PetriNetUnfolderBase]: 35/228 cut-off events. [2024-01-26 15:18:34,522 INFO L125 PetriNetUnfolderBase]: For 221/221 co-relation queries the response was YES. [2024-01-26 15:18:34,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 228 events. 35/228 cut-off events. For 221/221 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 744 event pairs, 7 based on Foata normal form. 13/224 useless extension candidates. Maximal degree in co-relation 461. Up to 78 conditions per place. [2024-01-26 15:18:34,523 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 22 selfloop transitions, 3 changer transitions 7/62 dead transitions. [2024-01-26 15:18:34,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 62 transitions, 283 flow [2024-01-26 15:18:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:34,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2024-01-26 15:18:34,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7802197802197802 [2024-01-26 15:18:34,524 INFO L175 Difference]: Start difference. First operand has 84 places, 76 transitions, 344 flow. Second operand 3 states and 213 transitions. [2024-01-26 15:18:34,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 62 transitions, 283 flow [2024-01-26 15:18:34,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 62 transitions, 204 flow, removed 10 selfloop flow, removed 12 redundant places. [2024-01-26 15:18:34,527 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 125 flow [2024-01-26 15:18:34,527 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2024-01-26 15:18:34,529 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -22 predicate places. [2024-01-26 15:18:34,529 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 125 flow [2024-01-26 15:18:34,530 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) [2024-01-26 15:18:34,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:34,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:34,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-26 15:18:34,530 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)] === [2024-01-26 15:18:34,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:34,531 INFO L85 PathProgramCache]: Analyzing trace with hash -339825315, now seen corresponding path program 1 times [2024-01-26 15:18:34,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:34,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649427874] [2024-01-26 15:18:34,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:34,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:34,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:34,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:34,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649427874] [2024-01-26 15:18:34,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649427874] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:34,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:34,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:18:34,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642563959] [2024-01-26 15:18:34,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:34,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:34,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:34,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:34,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:34,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 91 [2024-01-26 15:18:34,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 125 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) [2024-01-26 15:18:34,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:34,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 91 [2024-01-26 15:18:34,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:34,630 INFO L124 PetriNetUnfolderBase]: 28/156 cut-off events. [2024-01-26 15:18:34,631 INFO L125 PetriNetUnfolderBase]: For 20/21 co-relation queries the response was YES. [2024-01-26 15:18:34,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 156 events. 28/156 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 375 event pairs, 20 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 268. Up to 67 conditions per place. [2024-01-26 15:18:34,631 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 22 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-01-26 15:18:34,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 50 transitions, 173 flow [2024-01-26 15:18:34,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:34,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 199 transitions. [2024-01-26 15:18:34,633 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7289377289377289 [2024-01-26 15:18:34,633 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 125 flow. Second operand 3 states and 199 transitions. [2024-01-26 15:18:34,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 50 transitions, 173 flow [2024-01-26 15:18:34,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 50 transitions, 158 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-26 15:18:34,634 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 110 flow [2024-01-26 15:18:34,634 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} [2024-01-26 15:18:34,635 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -33 predicate places. [2024-01-26 15:18:34,635 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 110 flow [2024-01-26 15:18:34,636 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) [2024-01-26 15:18:34,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:34,636 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] [2024-01-26 15:18:34,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-26 15:18:34,636 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)] === [2024-01-26 15:18:34,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:34,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1170686749, now seen corresponding path program 1 times [2024-01-26 15:18:34,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:34,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277886426] [2024-01-26 15:18:34,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:34,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:34,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:34,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:34,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277886426] [2024-01-26 15:18:34,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277886426] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:34,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:34,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:34,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308630841] [2024-01-26 15:18:34,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:34,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:34,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:34,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:34,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:34,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 91 [2024-01-26 15:18:34,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-01-26 15:18:34,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:34,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 91 [2024-01-26 15:18:34,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:34,730 INFO L124 PetriNetUnfolderBase]: 31/166 cut-off events. [2024-01-26 15:18:34,730 INFO L125 PetriNetUnfolderBase]: For 17/18 co-relation queries the response was YES. [2024-01-26 15:18:34,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 299 conditions, 166 events. 31/166 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 389 event pairs, 25 based on Foata normal form. 4/161 useless extension candidates. Maximal degree in co-relation 282. Up to 82 conditions per place. [2024-01-26 15:18:34,731 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 26 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-01-26 15:18:34,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 48 transitions, 166 flow [2024-01-26 15:18:34,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:34,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:34,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 195 transitions. [2024-01-26 15:18:34,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-01-26 15:18:34,732 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 110 flow. Second operand 3 states and 195 transitions. [2024-01-26 15:18:34,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 48 transitions, 166 flow [2024-01-26 15:18:34,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:34,733 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 102 flow [2024-01-26 15:18:34,734 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} [2024-01-26 15:18:34,736 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -35 predicate places. [2024-01-26 15:18:34,736 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 102 flow [2024-01-26 15:18:34,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2024-01-26 15:18:34,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:34,736 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] [2024-01-26 15:18:34,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-26 15:18:34,737 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)] === [2024-01-26 15:18:34,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:34,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2120742156, now seen corresponding path program 1 times [2024-01-26 15:18:34,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:34,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924154226] [2024-01-26 15:18:34,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:34,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:34,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:34,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924154226] [2024-01-26 15:18:34,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924154226] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:34,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:34,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:34,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718154379] [2024-01-26 15:18:34,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:34,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:34,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:34,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:34,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:34,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 91 [2024-01-26 15:18:34,800 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) [2024-01-26 15:18:34,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:34,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 91 [2024-01-26 15:18:34,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:34,829 INFO L124 PetriNetUnfolderBase]: 28/156 cut-off events. [2024-01-26 15:18:34,829 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2024-01-26 15:18:34,830 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 359 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. [2024-01-26 15:18:34,830 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 23 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2024-01-26 15:18:34,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 47 transitions, 156 flow [2024-01-26 15:18:34,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:34,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:34,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2024-01-26 15:18:34,831 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7362637362637363 [2024-01-26 15:18:34,831 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 102 flow. Second operand 3 states and 201 transitions. [2024-01-26 15:18:34,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 47 transitions, 156 flow [2024-01-26 15:18:34,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 47 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:34,832 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 102 flow [2024-01-26 15:18:34,833 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} [2024-01-26 15:18:34,833 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -36 predicate places. [2024-01-26 15:18:34,833 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 102 flow [2024-01-26 15:18:34,834 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) [2024-01-26 15:18:34,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:18:34,834 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] [2024-01-26 15:18:34,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-26 15:18:34,834 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)] === [2024-01-26 15:18:34,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:18:34,835 INFO L85 PathProgramCache]: Analyzing trace with hash -2076240370, now seen corresponding path program 1 times [2024-01-26 15:18:34,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:18:34,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048791238] [2024-01-26 15:18:34,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:18:34,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:18:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:18:34,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:18:34,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:18:34,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048791238] [2024-01-26 15:18:34,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048791238] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:18:34,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:18:34,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-26 15:18:34,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524317718] [2024-01-26 15:18:34,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:18:34,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:18:34,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:18:34,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:18:34,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:18:34,895 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 91 [2024-01-26 15:18:34,896 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) [2024-01-26 15:18:34,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:18:34,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 91 [2024-01-26 15:18:34,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:18:34,924 INFO L124 PetriNetUnfolderBase]: 26/155 cut-off events. [2024-01-26 15:18:34,924 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2024-01-26 15:18:34,924 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 352 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. [2024-01-26 15:18:34,925 INFO L140 encePairwiseOnDemand]: 89/91 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2024-01-26 15:18:34,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 154 flow [2024-01-26 15:18:34,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:18:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:18:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2024-01-26 15:18:34,926 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7326007326007326 [2024-01-26 15:18:34,926 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 102 flow. Second operand 3 states and 200 transitions. [2024-01-26 15:18:34,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 154 flow [2024-01-26 15:18:34,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 148 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:18:34,926 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2024-01-26 15:18:34,926 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} [2024-01-26 15:18:34,927 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -37 predicate places. [2024-01-26 15:18:34,927 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2024-01-26 15:18:34,927 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) [2024-01-26 15:18:34,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 57 remaining) [2024-01-26 15:18:34,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (55 of 57 remaining) [2024-01-26 15:18:34,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 57 remaining) [2024-01-26 15:18:34,929 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (51 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (41 of 57 remaining) [2024-01-26 15:18:34,930 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONERROR_FUNCTION (34 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 57 remaining) [2024-01-26 15:18:34,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (17 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 57 remaining) [2024-01-26 15:18:34,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONERROR_FUNCTION (10 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 57 remaining) [2024-01-26 15:18:34,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 57 remaining) [2024-01-26 15:18:34,934 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 57 remaining) [2024-01-26 15:18:34,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-26 15:18:34,934 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:18:34,938 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-26 15:18:34,938 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-26 15:18:34,941 INFO L503 ceAbstractionStarter]: Automizer considered 28 witness invariants [2024-01-26 15:18:34,941 INFO L504 ceAbstractionStarter]: WitnessConsidered=28 [2024-01-26 15:18:34,941 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 03:18:34 BasicIcfg [2024-01-26 15:18:34,941 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-26 15:18:34,942 INFO L158 Benchmark]: Toolchain (without parser) took 3218.53ms. Allocated memory was 161.5MB in the beginning and 222.3MB in the end (delta: 60.8MB). Free memory was 99.0MB in the beginning and 125.1MB in the end (delta: -26.1MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2024-01-26 15:18:34,942 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 161.5MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:34,942 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 161.5MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-26 15:18:34,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 490.92ms. Allocated memory is still 161.5MB. Free memory was 98.5MB in the beginning and 74.5MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:34,942 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.06ms. Allocated memory is still 161.5MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:34,942 INFO L158 Benchmark]: Boogie Preprocessor took 41.00ms. Allocated memory is still 161.5MB. Free memory was 72.4MB in the beginning and 70.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-26 15:18:34,943 INFO L158 Benchmark]: RCFGBuilder took 469.02ms. Allocated memory is still 161.5MB. Free memory was 70.3MB in the beginning and 111.7MB in the end (delta: -41.3MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2024-01-26 15:18:34,943 INFO L158 Benchmark]: TraceAbstraction took 2169.69ms. Allocated memory was 161.5MB in the beginning and 222.3MB in the end (delta: 60.8MB). Free memory was 110.8MB in the beginning and 125.1MB in the end (delta: -14.3MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2024-01-26 15:18:34,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 161.5MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 161.5MB. Free memory is still 102.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 490.92ms. Allocated memory is still 161.5MB. Free memory was 98.5MB in the beginning and 74.5MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.06ms. Allocated memory is still 161.5MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.00ms. Allocated memory is still 161.5MB. Free memory was 72.4MB in the beginning and 70.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.02ms. Allocated memory is still 161.5MB. Free memory was 70.3MB in the beginning and 111.7MB in the end (delta: -41.3MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2169.69ms. Allocated memory was 161.5MB in the beginning and 222.3MB in the end (delta: 60.8MB). Free memory was 110.8MB in the beginning and 125.1MB in the end (delta: -14.3MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: 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: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds 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: 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: 704]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 705]: 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: 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: 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: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 694]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 695]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 695]: 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: 2.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 687 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 412 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 113 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 908 IncrementalHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 113 mSolverCounterUnsat, 71 mSDtfsCounter, 908 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=5, 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, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 254 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! [2024-01-26 15:18:34,963 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