./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_01-priv_nr_true.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cb09d658 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_01-priv_nr_true.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-cb09d65-m [2024-01-27 23:06:40,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:06:40,554 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:06:40,559 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:06:40,559 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:06:40,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:06:40,582 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:06:40,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:06:40,583 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:06:40,587 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:06:40,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:06:40,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:06:40,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:06:40,590 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:06:40,590 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:06:40,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:06:40,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:06:40,591 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:06:40,591 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:06:40,592 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:06:40,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:06:40,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:06:40,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:06:40,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:06:40,593 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:06:40,594 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:06:40,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:06:40,594 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:06:40,595 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:06:40,595 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:06:40,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:06:40,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:06:40,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:06:40,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:06:40,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:06:40,597 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:06:40,598 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:06:40,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:06:40,598 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:06:40,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:06:40,599 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:06:40,599 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:06:40,599 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:06:40,599 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:06:40,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:06:40,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:06:40,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:06:40,872 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:06:40,873 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:06:40,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/13-privatized_01-priv_nr_true.yml/witness.yml [2024-01-27 23:06:40,979 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:06:40,979 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:06:40,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2024-01-27 23:06:42,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:06:42,346 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:06:42,347 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i [2024-01-27 23:06:42,360 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f408fab7/efdfb40f5a0249b9a9a43ad0af2271ba/FLAGa78703a82 [2024-01-27 23:06:42,373 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f408fab7/efdfb40f5a0249b9a9a43ad0af2271ba [2024-01-27 23:06:42,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:06:42,374 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:06:42,375 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:06:42,375 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:06:42,380 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:06:42,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:40" (1/2) ... [2024-01-27 23:06:42,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713db7da and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:42, skipping insertion in model container [2024-01-27 23:06:42,382 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:40" (1/2) ... [2024-01-27 23:06:42,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b4fd446 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:06:42, skipping insertion in model container [2024-01-27 23:06:42,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:06:42" (2/2) ... [2024-01-27 23:06:42,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@713db7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:42, skipping insertion in model container [2024-01-27 23:06:42,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:06:42" (2/2) ... [2024-01-27 23:06:42,384 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:06:42,438 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:06:42,439 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] glob1 == 5 [2024-01-27 23:06:42,439 INFO L98 nessWitnessExtractor]: Location invariant before [L687-L687] (unsigned long )arg == 0UL [2024-01-27 23:06:42,440 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] glob1 == -10 [2024-01-27 23:06:42,440 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] (unsigned long )arg == 0UL [2024-01-27 23:06:42,440 INFO L98 nessWitnessExtractor]: Location invariant before [L690-L690] t == 5 [2024-01-27 23:06:42,441 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] glob1 == 5 [2024-01-27 23:06:42,441 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] t == 5 [2024-01-27 23:06:42,441 INFO L98 nessWitnessExtractor]: Location invariant before [L688-L688] (unsigned long )arg == 0UL [2024-01-27 23:06:42,441 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)) [2024-01-27 23:06:42,441 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)) [2024-01-27 23:06:42,442 INFO L98 nessWitnessExtractor]: Location invariant before [L697-L697] glob1 == 5 [2024-01-27 23:06:42,442 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (unsigned long )arg == 0UL [2024-01-27 23:06:42,442 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (long long )glob1 - (long long )t >= 0LL [2024-01-27 23:06:42,442 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] glob1 == 5 [2024-01-27 23:06:42,442 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] t == 5 [2024-01-27 23:06:42,442 INFO L98 nessWitnessExtractor]: Location invariant before [L692-L692] (0LL - (long long )glob1) + (long long )t >= 0LL [2024-01-27 23:06:42,442 INFO L98 nessWitnessExtractor]: Location invariant before [L686-L686] (unsigned long )arg == 0UL [2024-01-27 23:06:42,443 INFO L98 nessWitnessExtractor]: Location invariant before [L702-L702] glob1 == 6 [2024-01-27 23:06:42,443 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] t == 5 [2024-01-27 23:06:42,443 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] glob1 == 5 [2024-01-27 23:06:42,443 INFO L98 nessWitnessExtractor]: Location invariant before [L689-L689] (unsigned long )arg == 0UL [2024-01-27 23:06:42,444 INFO L98 nessWitnessExtractor]: Location invariant before [L701-L701] glob1 == 6 [2024-01-27 23:06:42,444 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] glob1 == -10 [2024-01-27 23:06:42,444 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] (unsigned long )arg == 0UL [2024-01-27 23:06:42,444 INFO L98 nessWitnessExtractor]: Location invariant before [L691-L691] t == 5 [2024-01-27 23:06:42,444 INFO L98 nessWitnessExtractor]: Location invariant before [L698-L698] glob1 == 5 [2024-01-27 23:06:42,444 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] t == 5 [2024-01-27 23:06:42,445 INFO L98 nessWitnessExtractor]: Location invariant before [L693-L693] (unsigned long )arg == 0UL [2024-01-27 23:06:42,445 INFO L98 nessWitnessExtractor]: Location invariant before [L703-L703] glob1 == 5 [2024-01-27 23:06:42,445 INFO L98 nessWitnessExtractor]: Location invariant before [L700-L700] glob1 == 5 [2024-01-27 23:06:42,491 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:06:42,684 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2024-01-27 23:06:42,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:06:42,945 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 23:06:42,957 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_01-priv_nr_true.i[1084,1097] [2024-01-27 23:06:42,958 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 [2024-01-27 23:06:43,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:06:43,085 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:06:43,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43 WrapperNode [2024-01-27 23:06:43,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:06:43,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:06:43,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:06:43,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:06:43,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,155 INFO L138 Inliner]: procedures = 163, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 117 [2024-01-27 23:06:43,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:06:43,156 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:06:43,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:06:43,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:06:43,165 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,168 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,179 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]. [2024-01-27 23:06:43,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,200 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:06:43,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:06:43,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:06:43,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:06:43,202 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (1/1) ... [2024-01-27 23:06:43,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:06:43,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:06:43,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-27 23:06:43,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-27 23:06:43,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:06:43,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:06:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:06:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:06:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:06:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:06:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-01-27 23:06:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:06:43,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:06:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-01-27 23:06:43,274 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-01-27 23:06:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:06:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:06:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:06:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:06:43,274 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-01-27 23:06:43,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:06:43,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:06:43,276 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 23:06:43,405 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:06:43,406 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:06:43,651 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:06:43,656 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:06:43,799 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:06:43,800 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-27 23:06:43,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:06:43 BoogieIcfgContainer [2024-01-27 23:06:43,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:06:43,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:06:43,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:06:43,805 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:06:43,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:06:40" (1/4) ... [2024-01-27 23:06:43,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3084dde3 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:06:43, skipping insertion in model container [2024-01-27 23:06:43,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:06:42" (2/4) ... [2024-01-27 23:06:43,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3084dde3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:06:43, skipping insertion in model container [2024-01-27 23:06:43,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:06:43" (3/4) ... [2024-01-27 23:06:43,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3084dde3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:06:43, skipping insertion in model container [2024-01-27 23:06:43,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:06:43" (4/4) ... [2024-01-27 23:06:43,808 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_01-priv_nr_true.i [2024-01-27 23:06:43,821 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:06:43,822 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2024-01-27 23:06:43,822 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:06:43,885 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-01-27 23:06:43,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 189 flow [2024-01-27 23:06:43,987 INFO L124 PetriNetUnfolderBase]: 4/90 cut-off events. [2024-01-27 23:06:43,988 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-01-27 23:06:43,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 4/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 77. Up to 2 conditions per place. [2024-01-27 23:06:43,994 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 189 flow [2024-01-27 23:06:43,999 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 88 transitions, 179 flow [2024-01-27 23:06:44,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:06:44,028 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;@22935dbf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:06:44,029 INFO L358 AbstractCegarLoop]: Starting to check reachability of 57 error locations. [2024-01-27 23:06:44,031 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:06:44,032 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:06:44,032 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:06:44,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:44,033 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:06:44,036 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)] === [2024-01-27 23:06:44,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:44,041 INFO L85 PathProgramCache]: Analyzing trace with hash 10727, now seen corresponding path program 1 times [2024-01-27 23:06:44,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:44,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122833575] [2024-01-27 23:06:44,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:44,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:44,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:44,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122833575] [2024-01-27 23:06:44,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122833575] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:44,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:44,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:06:44,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603968335] [2024-01-27 23:06:44,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:44,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:06:44,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:44,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:06:44,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:06:44,326 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 91 [2024-01-27 23:06:44,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 88 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:06:44,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:44,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 91 [2024-01-27 23:06:44,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:44,576 INFO L124 PetriNetUnfolderBase]: 147/750 cut-off events. [2024-01-27 23:06:44,576 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:06:44,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 750 events. 147/750 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4895 event pairs, 78 based on Foata normal form. 74/644 useless extension candidates. Maximal degree in co-relation 1116. Up to 213 conditions per place. [2024-01-27 23:06:44,585 INFO L140 encePairwiseOnDemand]: 67/91 looper letters, 42 selfloop transitions, 9 changer transitions 0/100 dead transitions. [2024-01-27 23:06:44,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 100 transitions, 305 flow [2024-01-27 23:06:44,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:06:44,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:06:44,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-01-27 23:06:44,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8058608058608059 [2024-01-27 23:06:44,599 INFO L175 Difference]: Start difference. First operand has 88 places, 88 transitions, 179 flow. Second operand 3 states and 220 transitions. [2024-01-27 23:06:44,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 100 transitions, 305 flow [2024-01-27 23:06:44,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 100 transitions, 304 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 23:06:44,606 INFO L231 Difference]: Finished difference. Result has 89 places, 89 transitions, 248 flow [2024-01-27 23:06:44,608 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} [2024-01-27 23:06:44,611 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2024-01-27 23:06:44,611 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 89 transitions, 248 flow [2024-01-27 23:06:44,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:06:44,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:44,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 23:06:44,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:06:44,613 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)] === [2024-01-27 23:06:44,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:44,613 INFO L85 PathProgramCache]: Analyzing trace with hash 10318938, now seen corresponding path program 1 times [2024-01-27 23:06:44,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:44,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123905933] [2024-01-27 23:06:44,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:44,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:44,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:44,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:44,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123905933] [2024-01-27 23:06:44,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123905933] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:44,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:44,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:06:44,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135489215] [2024-01-27 23:06:44,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:44,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:06:44,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:44,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:06:44,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:06:44,776 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 91 [2024-01-27 23:06:44,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 89 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:06:44,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:44,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 91 [2024-01-27 23:06:44,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:44,955 INFO L124 PetriNetUnfolderBase]: 170/767 cut-off events. [2024-01-27 23:06:44,956 INFO L125 PetriNetUnfolderBase]: For 205/245 co-relation queries the response was YES. [2024-01-27 23:06:44,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1480 conditions, 767 events. 170/767 cut-off events. For 205/245 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 4985 event pairs, 70 based on Foata normal form. 5/623 useless extension candidates. Maximal degree in co-relation 1460. Up to 203 conditions per place. [2024-01-27 23:06:44,961 INFO L140 encePairwiseOnDemand]: 76/91 looper letters, 58 selfloop transitions, 19 changer transitions 0/120 dead transitions. [2024-01-27 23:06:44,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 120 transitions, 502 flow [2024-01-27 23:06:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 23:06:44,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 23:06:44,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 310 transitions. [2024-01-27 23:06:44,964 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6813186813186813 [2024-01-27 23:06:44,964 INFO L175 Difference]: Start difference. First operand has 89 places, 89 transitions, 248 flow. Second operand 5 states and 310 transitions. [2024-01-27 23:06:44,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 120 transitions, 502 flow [2024-01-27 23:06:44,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 120 transitions, 474 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:06:44,972 INFO L231 Difference]: Finished difference. Result has 87 places, 91 transitions, 282 flow [2024-01-27 23:06:44,972 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} [2024-01-27 23:06:44,973 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -1 predicate places. [2024-01-27 23:06:44,973 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 91 transitions, 282 flow [2024-01-27 23:06:44,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:06:44,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:44,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:44,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:06:44,987 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)] === [2024-01-27 23:06:44,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:44,988 INFO L85 PathProgramCache]: Analyzing trace with hash -705145586, now seen corresponding path program 1 times [2024-01-27 23:06:44,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:44,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238617633] [2024-01-27 23:06:44,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:44,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:45,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:45,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238617633] [2024-01-27 23:06:45,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238617633] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:45,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:45,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:06:45,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131873835] [2024-01-27 23:06:45,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:45,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:06:45,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:45,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:06:45,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:06:45,197 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 91 [2024-01-27 23:06:45,197 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) [2024-01-27 23:06:45,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:45,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 91 [2024-01-27 23:06:45,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:45,293 INFO L124 PetriNetUnfolderBase]: 120/664 cut-off events. [2024-01-27 23:06:45,294 INFO L125 PetriNetUnfolderBase]: For 154/162 co-relation queries the response was YES. [2024-01-27 23:06:45,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 664 events. 120/664 cut-off events. For 154/162 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4211 event pairs, 65 based on Foata normal form. 96/674 useless extension candidates. Maximal degree in co-relation 1217. Up to 265 conditions per place. [2024-01-27 23:06:45,297 INFO L140 encePairwiseOnDemand]: 81/91 looper letters, 38 selfloop transitions, 2 changer transitions 0/91 dead transitions. [2024-01-27 23:06:45,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 91 transitions, 376 flow [2024-01-27 23:06:45,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:06:45,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:06:45,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 252 transitions. [2024-01-27 23:06:45,300 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2024-01-27 23:06:45,301 INFO L175 Difference]: Start difference. First operand has 87 places, 91 transitions, 282 flow. Second operand 4 states and 252 transitions. [2024-01-27 23:06:45,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 91 transitions, 376 flow [2024-01-27 23:06:45,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 91 transitions, 376 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-01-27 23:06:45,306 INFO L231 Difference]: Finished difference. Result has 82 places, 83 transitions, 270 flow [2024-01-27 23:06:45,307 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} [2024-01-27 23:06:45,309 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -6 predicate places. [2024-01-27 23:06:45,309 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 83 transitions, 270 flow [2024-01-27 23:06:45,309 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) [2024-01-27 23:06:45,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:45,310 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:45,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:06:45,310 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)] === [2024-01-27 23:06:45,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:45,311 INFO L85 PathProgramCache]: Analyzing trace with hash -325528768, now seen corresponding path program 1 times [2024-01-27 23:06:45,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:45,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558905136] [2024-01-27 23:06:45,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:45,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:45,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:45,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:45,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558905136] [2024-01-27 23:06:45,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558905136] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:45,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:45,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:06:45,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278978855] [2024-01-27 23:06:45,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:45,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:06:45,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:45,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:06:45,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:06:45,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 91 [2024-01-27 23:06:45,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 83 transitions, 270 flow. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:06:45,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:45,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 91 [2024-01-27 23:06:45,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:45,537 INFO L124 PetriNetUnfolderBase]: 154/673 cut-off events. [2024-01-27 23:06:45,538 INFO L125 PetriNetUnfolderBase]: For 231/300 co-relation queries the response was YES. [2024-01-27 23:06:45,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1405 conditions, 673 events. 154/673 cut-off events. For 231/300 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4168 event pairs, 76 based on Foata normal form. 66/644 useless extension candidates. Maximal degree in co-relation 1382. Up to 208 conditions per place. [2024-01-27 23:06:45,541 INFO L140 encePairwiseOnDemand]: 77/91 looper letters, 46 selfloop transitions, 11 changer transitions 1/93 dead transitions. [2024-01-27 23:06:45,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 93 transitions, 392 flow [2024-01-27 23:06:45,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:06:45,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:06:45,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 257 transitions. [2024-01-27 23:06:45,543 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7060439560439561 [2024-01-27 23:06:45,543 INFO L175 Difference]: Start difference. First operand has 82 places, 83 transitions, 270 flow. Second operand 4 states and 257 transitions. [2024-01-27 23:06:45,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 93 transitions, 392 flow [2024-01-27 23:06:45,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 93 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:06:45,546 INFO L231 Difference]: Finished difference. Result has 85 places, 78 transitions, 283 flow [2024-01-27 23:06:45,547 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} [2024-01-27 23:06:45,547 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -3 predicate places. [2024-01-27 23:06:45,548 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 78 transitions, 283 flow [2024-01-27 23:06:45,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:06:45,548 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:45,548 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:45,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-27 23:06:45,549 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-27 23:06:45,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:45,549 INFO L85 PathProgramCache]: Analyzing trace with hash -2143750989, now seen corresponding path program 1 times [2024-01-27 23:06:45,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:45,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826373400] [2024-01-27 23:06:45,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:45,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:45,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:45,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:45,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:45,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826373400] [2024-01-27 23:06:45,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826373400] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:45,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:45,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:06:45,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198051740] [2024-01-27 23:06:45,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:45,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:06:45,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:45,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:06:45,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:06:45,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 91 [2024-01-27 23:06:45,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 78 transitions, 283 flow. Second operand has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:06:45,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:45,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 91 [2024-01-27 23:06:45,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:45,773 INFO L124 PetriNetUnfolderBase]: 185/705 cut-off events. [2024-01-27 23:06:45,774 INFO L125 PetriNetUnfolderBase]: For 482/485 co-relation queries the response was YES. [2024-01-27 23:06:45,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1721 conditions, 705 events. 185/705 cut-off events. For 482/485 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 4114 event pairs, 50 based on Foata normal form. 30/688 useless extension candidates. Maximal degree in co-relation 1696. Up to 230 conditions per place. [2024-01-27 23:06:45,777 INFO L140 encePairwiseOnDemand]: 74/91 looper letters, 58 selfloop transitions, 11 changer transitions 2/98 dead transitions. [2024-01-27 23:06:45,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 98 transitions, 505 flow [2024-01-27 23:06:45,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-01-27 23:06:45,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-01-27 23:06:45,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 281 transitions. [2024-01-27 23:06:45,779 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6175824175824176 [2024-01-27 23:06:45,779 INFO L175 Difference]: Start difference. First operand has 85 places, 78 transitions, 283 flow. Second operand 5 states and 281 transitions. [2024-01-27 23:06:45,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 98 transitions, 505 flow [2024-01-27 23:06:45,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 98 transitions, 494 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 23:06:45,783 INFO L231 Difference]: Finished difference. Result has 84 places, 76 transitions, 344 flow [2024-01-27 23:06:45,783 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} [2024-01-27 23:06:45,784 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -4 predicate places. [2024-01-27 23:06:45,784 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 344 flow [2024-01-27 23:06:45,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:06:45,784 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:45,784 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:45,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-27 23:06:45,785 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)] === [2024-01-27 23:06:45,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:45,785 INFO L85 PathProgramCache]: Analyzing trace with hash 532465076, now seen corresponding path program 1 times [2024-01-27 23:06:45,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:45,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934032779] [2024-01-27 23:06:45,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:45,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:45,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:45,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:45,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:45,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934032779] [2024-01-27 23:06:45,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934032779] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:45,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:45,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 23:06:45,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892554343] [2024-01-27 23:06:45,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:45,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:06:45,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:45,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:06:45,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:06:45,839 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 91 [2024-01-27 23:06:45,839 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) [2024-01-27 23:06:45,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:45,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 91 [2024-01-27 23:06:45,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:45,889 INFO L124 PetriNetUnfolderBase]: 35/228 cut-off events. [2024-01-27 23:06:45,889 INFO L125 PetriNetUnfolderBase]: For 205/205 co-relation queries the response was YES. [2024-01-27 23:06:45,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 228 events. 35/228 cut-off events. For 205/205 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 747 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. [2024-01-27 23:06:45,890 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 22 selfloop transitions, 3 changer transitions 7/62 dead transitions. [2024-01-27 23:06:45,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 62 transitions, 283 flow [2024-01-27 23:06:45,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:06:45,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:06:45,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2024-01-27 23:06:45,892 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7802197802197802 [2024-01-27 23:06:45,892 INFO L175 Difference]: Start difference. First operand has 84 places, 76 transitions, 344 flow. Second operand 3 states and 213 transitions. [2024-01-27 23:06:45,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 62 transitions, 283 flow [2024-01-27 23:06:45,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 62 transitions, 204 flow, removed 10 selfloop flow, removed 12 redundant places. [2024-01-27 23:06:45,894 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 125 flow [2024-01-27 23:06:45,895 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} [2024-01-27 23:06:45,895 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -22 predicate places. [2024-01-27 23:06:45,895 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 125 flow [2024-01-27 23:06:45,896 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) [2024-01-27 23:06:45,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:45,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:45,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-27 23:06:45,896 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)] === [2024-01-27 23:06:45,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:45,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1678375456, now seen corresponding path program 1 times [2024-01-27 23:06:45,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:45,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391043901] [2024-01-27 23:06:45,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:45,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:45,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:45,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:45,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391043901] [2024-01-27 23:06:45,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391043901] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:45,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:45,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-01-27 23:06:45,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889662605] [2024-01-27 23:06:45,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:45,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 23:06:45,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:45,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 23:06:45,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 23:06:45,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 91 [2024-01-27 23:06:45,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:06:45,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:45,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 91 [2024-01-27 23:06:45,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:46,047 INFO L124 PetriNetUnfolderBase]: 36/181 cut-off events. [2024-01-27 23:06:46,048 INFO L125 PetriNetUnfolderBase]: For 20/21 co-relation queries the response was YES. [2024-01-27 23:06:46,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 335 conditions, 181 events. 36/181 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 459 event pairs, 10 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 317. Up to 54 conditions per place. [2024-01-27 23:06:46,049 INFO L140 encePairwiseOnDemand]: 84/91 looper letters, 27 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2024-01-27 23:06:46,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 52 transitions, 189 flow [2024-01-27 23:06:46,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 23:06:46,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 23:06:46,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 222 transitions. [2024-01-27 23:06:46,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6098901098901099 [2024-01-27 23:06:46,050 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 125 flow. Second operand 4 states and 222 transitions. [2024-01-27 23:06:46,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 52 transitions, 189 flow [2024-01-27 23:06:46,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 52 transitions, 174 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-01-27 23:06:46,052 INFO L231 Difference]: Finished difference. Result has 56 places, 48 transitions, 112 flow [2024-01-27 23:06:46,052 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=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=56, PETRI_TRANSITIONS=48} [2024-01-27 23:06:46,053 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -32 predicate places. [2024-01-27 23:06:46,053 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 48 transitions, 112 flow [2024-01-27 23:06:46,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 23:06:46,055 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:46,055 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] [2024-01-27 23:06:46,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-27 23:06:46,057 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)] === [2024-01-27 23:06:46,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:46,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1451119334, now seen corresponding path program 1 times [2024-01-27 23:06:46,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:46,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013018354] [2024-01-27 23:06:46,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:46,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:46,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:46,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:46,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013018354] [2024-01-27 23:06:46,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013018354] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:46,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:46,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:06:46,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082018026] [2024-01-27 23:06:46,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:46,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:06:46,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:46,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:06:46,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:06:46,110 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 91 [2024-01-27 23:06:46,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 48 transitions, 112 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) [2024-01-27 23:06:46,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:46,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 91 [2024-01-27 23:06:46,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:46,153 INFO L124 PetriNetUnfolderBase]: 29/162 cut-off events. [2024-01-27 23:06:46,153 INFO L125 PetriNetUnfolderBase]: For 24/25 co-relation queries the response was YES. [2024-01-27 23:06:46,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 162 events. 29/162 cut-off events. For 24/25 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 386 event pairs, 23 based on Foata normal form. 4/155 useless extension candidates. Maximal degree in co-relation 276. Up to 76 conditions per place. [2024-01-27 23:06:46,154 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 25 selfloop transitions, 2 changer transitions 0/48 dead transitions. [2024-01-27 23:06:46,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 48 transitions, 166 flow [2024-01-27 23:06:46,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:06:46,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:06:46,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-01-27 23:06:46,156 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7216117216117216 [2024-01-27 23:06:46,156 INFO L175 Difference]: Start difference. First operand has 56 places, 48 transitions, 112 flow. Second operand 3 states and 197 transitions. [2024-01-27 23:06:46,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 48 transitions, 166 flow [2024-01-27 23:06:46,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 48 transitions, 156 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-01-27 23:06:46,158 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 102 flow [2024-01-27 23:06:46,158 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} [2024-01-27 23:06:46,158 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -35 predicate places. [2024-01-27 23:06:46,159 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 102 flow [2024-01-27 23:06:46,159 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) [2024-01-27 23:06:46,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:46,159 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] [2024-01-27 23:06:46,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-27 23:06:46,160 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-27 23:06:46,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash 684886861, now seen corresponding path program 1 times [2024-01-27 23:06:46,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:46,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854486904] [2024-01-27 23:06:46,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:46,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:46,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:46,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:46,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854486904] [2024-01-27 23:06:46,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854486904] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:46,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:46,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:06:46,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730156876] [2024-01-27 23:06:46,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:46,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:06:46,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:46,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:06:46,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:06:46,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 91 [2024-01-27 23:06:46,242 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) [2024-01-27 23:06:46,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:46,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 91 [2024-01-27 23:06:46,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:46,281 INFO L124 PetriNetUnfolderBase]: 28/161 cut-off events. [2024-01-27 23:06:46,281 INFO L125 PetriNetUnfolderBase]: For 12/13 co-relation queries the response was YES. [2024-01-27 23:06:46,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 161 events. 28/161 cut-off events. For 12/13 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 377 event pairs, 10 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 259. Up to 54 conditions per place. [2024-01-27 23:06:46,282 INFO L140 encePairwiseOnDemand]: 89/91 looper letters, 25 selfloop transitions, 1 changer transitions 0/47 dead transitions. [2024-01-27 23:06:46,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 47 transitions, 156 flow [2024-01-27 23:06:46,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:06:46,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:06:46,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2024-01-27 23:06:46,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7362637362637363 [2024-01-27 23:06:46,284 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 102 flow. Second operand 3 states and 201 transitions. [2024-01-27 23:06:46,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 47 transitions, 156 flow [2024-01-27 23:06:46,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 47 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:06:46,285 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 98 flow [2024-01-27 23:06:46,285 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2024-01-27 23:06:46,286 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -36 predicate places. [2024-01-27 23:06:46,286 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 98 flow [2024-01-27 23:06:46,287 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) [2024-01-27 23:06:46,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:06:46,287 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] [2024-01-27 23:06:46,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-01-27 23:06:46,287 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 54 more)] === [2024-01-27 23:06:46,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:06:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1924718203, now seen corresponding path program 1 times [2024-01-27 23:06:46,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:06:46,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014336545] [2024-01-27 23:06:46,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:06:46,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:06:46,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:06:46,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 23:06:46,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:06:46,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014336545] [2024-01-27 23:06:46,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014336545] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:06:46,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:06:46,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-27 23:06:46,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556181562] [2024-01-27 23:06:46,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:06:46,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:06:46,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:06:46,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:06:46,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:06:46,388 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 91 [2024-01-27 23:06:46,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 98 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) [2024-01-27 23:06:46,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:06:46,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 91 [2024-01-27 23:06:46,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:06:46,427 INFO L124 PetriNetUnfolderBase]: 26/150 cut-off events. [2024-01-27 23:06:46,427 INFO L125 PetriNetUnfolderBase]: For 8/9 co-relation queries the response was YES. [2024-01-27 23:06:46,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 150 events. 26/150 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 342 event pairs, 16 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 238. Up to 55 conditions per place. [2024-01-27 23:06:46,428 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 0 selfloop transitions, 0 changer transitions 46/46 dead transitions. [2024-01-27 23:06:46,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 150 flow [2024-01-27 23:06:46,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:06:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:06:46,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 200 transitions. [2024-01-27 23:06:46,429 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7326007326007326 [2024-01-27 23:06:46,430 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 98 flow. Second operand 3 states and 200 transitions. [2024-01-27 23:06:46,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 150 flow [2024-01-27 23:06:46,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 46 transitions, 149 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-27 23:06:46,431 INFO L231 Difference]: Finished difference. Result has 52 places, 0 transitions, 0 flow [2024-01-27 23:06:46,431 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=50, 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=52, PETRI_TRANSITIONS=0} [2024-01-27 23:06:46,431 INFO L281 CegarLoopForPetriNet]: 88 programPoint places, -36 predicate places. [2024-01-27 23:06:46,432 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 0 transitions, 0 flow [2024-01-27 23:06:46,432 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) [2024-01-27 23:06:46,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 57 remaining) [2024-01-27 23:06:46,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (55 of 57 remaining) [2024-01-27 23:06:46,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 57 remaining) [2024-01-27 23:06:46,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 57 remaining) [2024-01-27 23:06:46,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 57 remaining) [2024-01-27 23:06:46,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (51 of 57 remaining) [2024-01-27 23:06:46,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 57 remaining) [2024-01-27 23:06:46,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 57 remaining) [2024-01-27 23:06:46,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 57 remaining) [2024-01-27 23:06:46,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 57 remaining) [2024-01-27 23:06:46,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 57 remaining) [2024-01-27 23:06:46,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 57 remaining) [2024-01-27 23:06:46,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 57 remaining) [2024-01-27 23:06:46,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 57 remaining) [2024-01-27 23:06:46,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 57 remaining) [2024-01-27 23:06:46,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (41 of 57 remaining) [2024-01-27 23:06:46,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 57 remaining) [2024-01-27 23:06:46,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 57 remaining) [2024-01-27 23:06:46,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 57 remaining) [2024-01-27 23:06:46,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 57 remaining) [2024-01-27 23:06:46,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 57 remaining) [2024-01-27 23:06:46,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 57 remaining) [2024-01-27 23:06:46,438 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONERROR_FUNCTION (34 of 57 remaining) [2024-01-27 23:06:46,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 57 remaining) [2024-01-27 23:06:46,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 57 remaining) [2024-01-27 23:06:46,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 57 remaining) [2024-01-27 23:06:46,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 57 remaining) [2024-01-27 23:06:46,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 57 remaining) [2024-01-27 23:06:46,439 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 57 remaining) [2024-01-27 23:06:46,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 57 remaining) [2024-01-27 23:06:46,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 57 remaining) [2024-01-27 23:06:46,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 57 remaining) [2024-01-27 23:06:46,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 57 remaining) [2024-01-27 23:06:46,440 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 57 remaining) [2024-01-27 23:06:46,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 57 remaining) [2024-01-27 23:06:46,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 57 remaining) [2024-01-27 23:06:46,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 57 remaining) [2024-01-27 23:06:46,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 57 remaining) [2024-01-27 23:06:46,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 57 remaining) [2024-01-27 23:06:46,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr6ASSERT_VIOLATIONERROR_FUNCTION (17 of 57 remaining) [2024-01-27 23:06:46,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr7ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 57 remaining) [2024-01-27 23:06:46,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr8ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 57 remaining) [2024-01-27 23:06:46,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr9ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 57 remaining) [2024-01-27 23:06:46,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr10ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 57 remaining) [2024-01-27 23:06:46,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr11ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 57 remaining) [2024-01-27 23:06:46,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr12ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 57 remaining) [2024-01-27 23:06:46,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr13ASSERT_VIOLATIONERROR_FUNCTION (10 of 57 remaining) [2024-01-27 23:06:46,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr14ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 57 remaining) [2024-01-27 23:06:46,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr15ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 57 remaining) [2024-01-27 23:06:46,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr16ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 57 remaining) [2024-01-27 23:06:46,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr17ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 57 remaining) [2024-01-27 23:06:46,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr18ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 57 remaining) [2024-01-27 23:06:46,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr19ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 57 remaining) [2024-01-27 23:06:46,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr20ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 57 remaining) [2024-01-27 23:06:46,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr21ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 57 remaining) [2024-01-27 23:06:46,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr22ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 57 remaining) [2024-01-27 23:06:46,444 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr23ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 57 remaining) [2024-01-27 23:06:46,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-01-27 23:06:46,445 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 23:06:46,450 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-27 23:06:46,450 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-27 23:06:46,456 INFO L503 ceAbstractionStarter]: Automizer considered 28 witness invariants [2024-01-27 23:06:46,456 INFO L504 ceAbstractionStarter]: WitnessConsidered=28 [2024-01-27 23:06:46,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 11:06:46 BasicIcfg [2024-01-27 23:06:46,458 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-27 23:06:46,458 INFO L158 Benchmark]: Toolchain (without parser) took 4083.94ms. Allocated memory was 134.2MB in the beginning and 211.8MB in the end (delta: 77.6MB). Free memory was 74.6MB in the beginning and 159.8MB in the end (delta: -85.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:06:46,459 INFO L158 Benchmark]: Witness Parser took 0.18ms. Allocated memory is still 134.2MB. Free memory was 95.6MB in the beginning and 95.5MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:06:46,459 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory was 92.2MB in the beginning and 92.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:06:46,460 INFO L158 Benchmark]: CACSL2BoogieTranslator took 710.51ms. Allocated memory is still 134.2MB. Free memory was 74.6MB in the beginning and 94.5MB in the end (delta: -19.9MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-01-27 23:06:46,460 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.23ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 92.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-27 23:06:46,460 INFO L158 Benchmark]: Boogie Preprocessor took 44.18ms. Allocated memory is still 134.2MB. Free memory was 92.4MB in the beginning and 89.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-27 23:06:46,461 INFO L158 Benchmark]: RCFGBuilder took 599.08ms. Allocated memory is still 134.2MB. Free memory was 89.7MB in the beginning and 59.8MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-01-27 23:06:46,461 INFO L158 Benchmark]: TraceAbstraction took 2655.86ms. Allocated memory was 134.2MB in the beginning and 211.8MB in the end (delta: 77.6MB). Free memory was 59.2MB in the beginning and 159.8MB in the end (delta: -100.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-27 23:06:46,462 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.18ms. Allocated memory is still 134.2MB. Free memory was 95.6MB in the beginning and 95.5MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory was 92.2MB in the beginning and 92.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 710.51ms. Allocated memory is still 134.2MB. Free memory was 74.6MB in the beginning and 94.5MB in the end (delta: -19.9MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.23ms. Allocated memory is still 134.2MB. Free memory was 94.5MB in the beginning and 92.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.18ms. Allocated memory is still 134.2MB. Free memory was 92.4MB in the beginning and 89.7MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 599.08ms. Allocated memory is still 134.2MB. Free memory was 89.7MB in the beginning and 59.8MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2655.86ms. Allocated memory was 134.2MB in the beginning and 211.8MB in the end (delta: 77.6MB). Free memory was 59.2MB in the beginning and 159.8MB in the end (delta: -100.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 698]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 700]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 701]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 702]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 703]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 686]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 687]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 688]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 689]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 690]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 691]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 692]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 693]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 147 locations, 57 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 702 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 432 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 121 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 929 IncrementalHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 121 mSolverCounterUnsat, 82 mSDtfsCounter, 929 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=344occurred in iteration=5, InterpolantAutomatonStates: 37, 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, 0.6s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 244 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! [2024-01-27 23:06:46,504 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